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Taxiphyllopsis Higuchi & Deguchi (Hypnaceae)

T. iwatsukii Higuchi & Deg. **
Illustrations. Higuchi & Deguchi (1987, Figs. 1-36).
Habitat. Alt. 450 m.
Distribution in Thailand. (MAP) PHITSANULOK. Phitsanulok: LSW 747 (MO).
Range in Asia: Japan.

Taxiphyllum Fleisch. (Hypnaceae)

T. arcuatum (Bosch & Sande Lac.) He **
(as Homalia arcuata, Touw 1968: 231, Tixier 1971: 135).
Illustrations. Dozy & Molkenboer (1855-70, Tab. 176B, as Homalia arcuata); He (1992, Pl. 39, figs. 1-17); Noguchi (1987-94, Fig. 469, as Taxiphyllum subarcuatum).
Habitat. Alt. 370-950 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11439, 11469 (both in L, MO), 11551 (L), Touw 1968: 231.
Range in Asia: Mainland China, Japan, and Sumatra.
T. maniae (Ren. & Card.) Fleisch.**
Illustrations. Gangulee (1969-80, Fig. 998).
Habitat. Alt. 50 m.
Distribution in Thailand. (MAP) RACHABURI. Prachuap Khiri Khan: LSmW 1574 (AAU, MO).
Range in Asia: Java, Nepal, and New Guinea.
T. taxirameum (Bosch & Sande Lac.) Jaeg.
Illustrations. Bartram (1939, Pl. 28, fig. 477); Gangulee (1969-80, Fig. 996); Noguchi (1987-94, Fig. 470).
Habitat. Alt. 80-2300 m.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Sorensen et al 6434, 6743, 6752, 6797 (all in C), Noguchi 1972a: 182. NAKHON SAWAN. Tak: Touw 8361 (L, MO), Touw 1968: 226. PAYAP. Chiang Mai: Touw 8461, 9449, 9482, 10326, 10136 (all in L), 9404, 9484 (both in L, MO), Touw 1968: 226; Tixier s.n. (PC), Tixier 1971: 157. RACHABURI. Kanchanaburi: Larsen 8130, 8473, 8688, 8926 (all in C), Noguchi 1972a: 182. RACHASIMA. Nakhon Ratchasima: Tixier s.n. (PC), Tixier 1971: 157.
Range in Asia: Bangladesh, Bhutan, Mainland China, India, Japan, Java, Korea, Laos, Myanmar, Nepal, New Guinea, Philippines, Siberia, Sri Lanka, Sumatra, Taiwan, and Vietnam.

Taxithelium Spurce ex Mitt. (Sematophyllaceae)

T. alare Broth.
Illustrations. Bartram (1939, Pl. 26, fig. 448).
Habitat. Alt. 100-1740 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11800 (MO); Phatthalung: Kerr 540 (BM), Dixon 1935: 25. PATTANI. Pattani: Kerr 277, 283c (both in BM), Dixon 1932: 45. PHUKET. Krabi: Kerr 520 (BM), Dixon 1935: 25. SURAT. Surat Thani: Kerr 190 (BM), Dixon 1932: 45.
Range in Asia: Borneo and Philippines.
T. arnottii Thér. ex P. Tixier *, nom. inval.
[This is an invalid name because single element was not cited in the protologue as the holotype (Article 37.3)].
Illustrations: Tixier (1971-72, Pl. 7, figs. 1-8).
Distribution in Thailand. PAYAP. Chiang Mai: alt. 400-600 m, Tixier 500, 1026 (syntypes, both in PC), Tixier 1971-72: 157. PHUKET. Ranong: Tixier 4003 (PC), Tixier 1970b: 545.
T. bakeri Broth.**
Illustrations. Bartram (1939, Pl. 26, fig. 453).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) PHUKET. Trang: CLW 3743 (MO).
Range in Asia: Philippines.
T. batanense Bartr.
Illustrations. Bartram (1939, Pl. 26, fig. 444).
Habitat. Alt. 50-800 m.
Distribution in Thailand. (MAP) CHANTHABURI. Trat: Smitinand 1422 (BKF, US), Reed & Robinson 1967: 68. NAKHON SI THAMMARAT. Nakhon Si Thammarat: Smitinand 1293 (BKF, US), Reed & Robinson 1967: 68. PHITSANULOK. Phitsanulok: LSmW 764 (AAU, MO). PRACHINBURI. Nakhon Nayok: LSaW 3416 (AAU, MO); LSmW 124c (MO).
Range in Asia: Mainland China and Philippines.
T. binsteadii Broth. & Dix. in Dix.
Illustrations. Dixon (1915, Pl. 540, fig. 297).
Habitat. Alt. 100 m.
Distribution in Thailand. (MAP) KRUNGTEP. Krung Thep Mahanakhon: Kerr 316 p.p. (BM). NAKHON SI THAMMARAT. Songkhla: Kerr 317 (BM), all reported by Dixon 1932: 45.
Range in Asia: India.
T. clastobryoides Dix.*
Illustrations. Unknown.
Habitat. Alt. 600-1100 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Suvarnakoses 149 (PC), Tixier & Smitinand 1966: 190. PHUKET. Krabi: Kerr 512b (type, BM), Dixon 1935: 26.
Range in Asia: Endemic to Thailand.

T. distichophyllum (Hampe) Broth. == Ectropotheciella distichophylla fide Fleischer 1904-22: 1418.

T. epapillosum Dix.*
Illustrations. Unknown.
Habitat. Alt. 50 m.
Distribution in Thailand. (MAP) SURAT. Chumphon: Kerr 368 (type, BM), Dixon 1935: 25.
Range in Asia: Endemic to Thailand.
T. gottscheanum (Hampe) Broth.**
Illustrations. Bartram (1939, Pl. 26, fig. 446).
Habitat. Alt.
Distribution in Thailand. (MAP) PRACHINBURI. Nakhon Nayok: LSaW 3285 (AAU, MO).
Range in Asia: Borneo and Philippines.
T. inerme P. Tx.*
Illustrations. Tixier (1971-72, Pl. 8, figs. 1-6).
Habitat. Alt.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Tixier 965 (type, PC), Tixier 1971-72: 159.
Range in Asia: Endemic to Thailand.
T. instratum (Brid.) Broth.
Illustrations. Bartram (1939, Pl. 26, fig. 443).
Habitat. Alt. 50-1300 m.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Tixier s.n. (PC), Tixier 1971: 153; LSmW 1711, 1714, 1726, 1734 (all in AAU, MO); Trat: Schmidt s.n. (H), Brotherus 1901: 123; Kerr 442 (BM), Dixon 1932: 45; Smitinand 1306, 1350, 1417, 1418 (all in BKF, PC), Tixier & Smitinand 1966: 190; Smitinand 1351 (BKF, US), Reed & Robinson 1967: 68; CLW 5085 (MO); LNS 32392 (MO); LSmW 1804, 1825 (both in AAU, MO). NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11954 (L), Touw 1968: 239. PHUKET. Satun: CLW 3801 (AAU, MO); Trang: CLW 3527, 3543, 3547, 3619 (all in AAU, MO). PRACHINBURI. Nakhon Nayok: LSaW 3390 (AAU, MO); Prachin Buri: LSmW 1155a, 1160 (both in AAU, MO). RACHABURI. Kanchanaburi: 8505, 8670, 9122, 9182, 9282 (all in C); Rat Buri: Larsen 8315 (C), Noguchi 1972a: 182. RACHASIMA. Nakhon Ratchasima: LSaW 3150, 3166 (both in AAU, MO). UDAWN. Khon Kaen: Smitinand 1234 (BKF, PC), Tixier & Smitinand 1966: 190.
Range in Asia: Borneo, Mainland China, Java, Kampuchea, Malay Peninsula, Myanmar, New Guinea, Philippines, Taiwan, and Vietnam.
T. isocladum (Bosch & Sande Lac.) Ren. & Card.
Illustrations. Dozy & Molkenboer (1855-70, Tab. 272, as Hypnum isocladum).
Habitat. Alt. 50-200 m.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Smitinand 1822 (BKF, PC), Tixier & Smitinand 1966: 191; Trat: Schmidt s.n. (H), Brotherus 1901: 123. PHUKET. Ranong: Kerr 179 (BM), Dixon 1932: 45.
Range in Asia: Borneo, Laos, Malaysia, New Guinea, and Vietnam.
T. kerianum (Broth.) Broth.
Illustrations. Bartram (1939, Pl. 26, fig. 452); Fleischer (1904-22, Fig. 218); Gangulee (1969-80, Fig. 984); Noguchi (1987-94, Fig. 479C).
Habitat. Alt.
Distribution in Thailand. (MAP) SURAT. Surat Thani: Tixier s.n. (PC), Tixier 1971: 154.
Range in Asia: Borneo, India, Java, Kampuchea, Malaysia, New Guinea, Philippines, and Vietnam.

T. lindbergii (Jaeg.) Ren. & Card. = T. vernieri fide Gangulee 1969-80: 1922.

T. magnum Fleisch.
Illustrations. Unknown.
Habitat. Alt. 800-1100 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Smitinand 1293 (BKF, PC), Tixier & Smitinand 1966: 191. PHUKET. Krabi: Kerr 513b (BM); Phangnga: Kerr 419, 422, 492 (all in BM), both reported by Dixon 1935: 25.
Range in Asia: Borneo, Java, Malay Peninsula, and Sumatra.
T. merrillii Broth.
Illustrations. Bartram (1939, Pl. 26, fig. 442);
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) CHANTHABURI. Trat: CLW 5130 (AAU, MO). PHUKET. Satun (Terutao Is.): Hansen & Smitinand 12493 (L), Touw 1968: 239.
Range in Asia: New Guinea and Philippines.
T. nepalense (Schwaegr.) Broth.
Illustrations. Bartram (1939, Pl. 26, fig. 445); Fleischer (1904-22, Fig. 217); Gangulee (1969-80, Fig. 983).
Habitat. Alt. 30-600 m.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Sorensen et al 6734 (C), Noguchi 1972a: 182; LSmW 1698, 1710, 1715 (all in AAU, MO); Trat: Smitinand 1376 (BKF, PC), Tixier & Smitinand 1966: 191. NAKHON SAWAN. Tak: Touw 8346 (MO). PAYAY. Chiang Mai: Tixier s.n. (PC), Tixier 1971: 154. PHITSANULOK. Phitsanulok: Tixier s.n. (PC), Tixier 1971: 154. PHUKET. Phuket: Touw 11179 (MO); Ranong: Tixier 3961 (PC), Tixier 1970b: 545; Trang: CLW 3532 (AAU, MO). RACHASIMA. Nakhon Ratchasima: LSaW 3228 (AAU, MO). SURAT. Chumphon (Ko Tao): Kerr 156, 208, 332, 335, 343, 346 (all in BM), Dixon 1929: 21; Surat Thani: Smitinand 2903, 2924 (both in BKF, PC), Tixier & Smitinand 1966: 191; Tixier s.n. (PC), Tixier 1971: 154.
Range in Asia: Bangladesh, Borneo, Mainland China, India, Java, Kampuchea, Laos, Malaysia, Myanmar, Nepal, New Guinea, Philippines, Sri Lanka, Sumatra, and Vietnam.

T. papillatum (Harv.) Broth. == Acanthorrhynchium papillatum fide Fleischer 1904-22: 1331.

T. schmidtii Broth.*
Illustrations. Unknown.
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) CHANTHABURI. Trat: Klong Munsé, Schmidt s.n. (type, H), Brotherus 1901: 123.
Range in Asia: Endemic to Thailand.
T. spathulifolium Dix.*
(as Glossadelphus spathulifolium, Chopra 1975: 521).
Illustrations. Unknown.
Habitat. Alt. 1300 m.
Distribution in Thailand. (MAP) PHUKET. Krabi: Kerr 511b (type, BM), Dixon 1935: 26.
Range in Asia: India and Sikkim.
T. sumatranum (Bosch & Sande Lac. in Dozy & Molk.) Broth.
Illustrations. Dozy & Molkenboer (1855-70, Tab. 247, as Hypnum sumatranum).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) PHUKET. Ranong: Kerr 393 (BM), Dixon 1935: 25.
Range in Asia: Borneo and Sumatra.
T. vernieri (Duby) Besch.
(as Taxithelium lindbergii, Dixon 1935: 25).
Illustrations. Bartram (1939, Pl. 26, fig. 450, as Taxithelium lindbergii); Gangulee (1969-80, Fig. 985).
Habitat. Alt. 600-1300 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Phloenchit 149 (BKF, US), Reed & Robinson 1967: 68; Touw 11587, 11589 (both in L), Touw 1968: 240. PHUKET. Trang: CLW 3673 (AAU, MO). RACHASIMA. Nakhon Ratchasima: Tixier s.n. (PC), Tixier 1971: 154. UDAWN. Loei: Kerr 569b (BM), Dixon 1935: 25.
Range in Asia: Bangladesh, Borneo, Java, Kampuchea, Malay Peninsula, New Guinea, Philippines, Sri Lanka, Sumatra,and Vietnam.

Tayloria Hook. (Splachnaceae)

T. indica Mitt.
Illustrations. Eddy (1996, Fig. 397, A-E).
Habitat. Alt. 900-2000 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Kerr 23, Smith 489 (both in BM), Dixon 1932: 22; Richards 5475 (BO), Giesy & Richards 1959: 578; Robbins 3579 (BKF, PC), Tixier & Smitinand 1966: 172; Tagawa & Kitagawa 4123 (NICH), Noguchi 1973: 237; Touw 8883 (MO); Chiang Rai: Kitagawa 3593, 12169 (both in NICH), Noguchi 1973: 237.
Range in Asia: Bhutan, Mainland China, India, Japan, Java, Myanmar, Nepal, Philippines, Sikkim, and Sri Lanka.
T. subglabra (Griff.) Mitt.
Illustrations. Eddy (1996, Fig. 399, A-G).
Habitat. Alt. 1290-1685 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Touw 8710 (L, MO), Touw 1968: 240; Hansen et al 11453 (C), Noguchi 1972a: 173
Range in Asia: Bhutan, Mainland China, India, Japan, Java, Korea, Nepal, Philippines, Sikkim, Sri Lanka, Taiwan, and Vietnam.

Thamnium siamense Horik. & Ando = Curvicladium kurzii fide Enroth 1993: 110.

Thamnium subserratum (Hook.f.) Besch. == Thamnobryum subserratum fide Tan 1989: 43.
[Thamnium subserratum was reported from Thailand as T. subseriatum by Touw (1968: 233) and Tixier (1971: 136). They clearly made a typographical error by misspelled the species name. The error can be verified by their citations of the authority for the species as Thamnium subseriatum (Hook.f.) Besch. Noguchi & Iwatsuki (1972: 470) made the same typographical error when they transferred it to the genus Thamnobryum. It was spelled as Thamnobryum subseriatum (Hook.) Nog. & Iwats. They even misspelled the basionym, Neckera subserrata Hook.f. as N. subseriata Hook.f . The nomenclatural confusions surrounding Thamnium subserratum has been clarified by Tan (1989)].

Thamnobryum Nieuwl. (Neckeraceae)

T. ellipticum (Bosch & Sande Lac.) Nieuwl. **
Illustrations. Enroth (1989, Fig. 16, a-e).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) PRACHINBURI. Nakhon Nayok: LSaW 3384 (MO).
Range in Asia: Borneo, Indonesia, Papua New Guinea, and Philippines.

T. siamense (Horik. & Ando) Nog. in Ohashi * = Curvicladium kurzii fide Enroth 1993: 110.

T. subserratum (Hook. f.) Nog. & Iwats.
(as Thamnium subserratum, Touw 1968: 233; Tixier 1971: 136).
Illustrations. Gangulee (1969-80, Fig. 722).
Habitat. Alt. 700-950 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11987 (L), Touw 1968: 233. UDAWN. Loei: Touw 10825 (L), Touw 1968: 233; Tixier s.n. (PC), 1971: 136.
Range in Asia: Borneo, Mainland China, Japan, Myanmar, Nepal, Philippines, Sikkim, Sri Lanka, and Vietnam.

Thuidium Schimp. in B.S.G. (Thuidiaceae)

T. bifarium (Bosch & Sande Lac.) Jaeg. == Lorentzia bifaria fide Buck & Crum 1990: 64.

T. bonianum Besch.
[This species was reported from Thailand by Touw & Falter-ven den Haak (1989: 52) and Noguchi (1987-94: 866). Both papers did not cite any Thai specimens. It is treated as a provisional record].
T. cymbifolium (Dozy & Molk.) Dozy & Molk.
Illustrations. Gangulee (1969-80, Fig. 826); Norris & Koponen (1985, Fig. 4, h-k); Watanabe (1972, Pl. 12, figs. 1-22).
Habitat. Alt. 600-2570 m.
Distribution in Thailand. (MAP) MAHARAT. Lamphun: Smith 480 (BM), Dixon 1932: 36. NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11912, 11995 (both in MO). PAYAP. Chiang Mai: Smith 514 (BM), Dixon 1932: 36; Yoda 67219, 67242, 67273, 67303, 67312, 67370, 67389, 67427, 67446, 67460, 67480, 67481, 67491, 67503, 67507, 67517, 67531, 67537, 67579, 67661, 67637, 67696, 67715, 67723, 67730, 67751, 67817, 67821, 67829, 67845, 67861, 67877, 67897, 67901, 67909, 67915 (all in HIRO), Horikawa & Ando 1964: 29; Robbins 3569, 3632 (both in PC), Tixier & Smitinand 1966: 185; Tixier s.n. (PC), Tixier 1971: 142; Sorensen et al 3279a (C), Noguchi 1972a: 180; LSaW 1889, 2067, 2578 (all in AAU, MO); Touw 8453, 8932, 9197, 9207, 9230, 9370, 9626, 9841, 9970, 10231 (all in MO). PHITSANULOK. Phetchabun: Tixier s.n. (PC), Tixier 1971: 142; LSmW 1057 (AAU, MO). PRACHINBURI. Nakhon Nayok: LSmW 123 (AAU, MO). RACHASIMA. Chaiyaphum: LNS 31351, 31446 (both in AAU, MO). SURAT. Chumphon (Ko Tao): Kerr s.n. (BM), Dixon 1932: 36. UDAWN. Loei: Smitinand 1069 (BKF, US), Reed & Robinson 1967: 67; Touw 10851, 10419 (both in MO).
Range in Asia: Borneo, Mainland China, India, Japan, Java, Korea, Laos, Malaysia, Myanmar, Nepal, New Guinea, Philippines, Sikkim, Sri Lanka, Sumatra, Taiwan, and Vietnam.
T. delicatulum (Hedw.) Schimp. in B.S.G.**
Illustrations. Gangulee (1969-80, Fig. 825, as Thuidium recognitum var. delicatulum); Noguchi (1987-94, Fig. 381B, as Thuidium recognitum var. delicatulum); Watanabe (1972, Pl. 8, figs. 1-17).
Habitat. Alt. 1100 m.
Distribution in Thailand. (MAP) UDAWN. Loei: CLW 4653 (MO).
Range in Asia: Mainland China, India, Japan, Korea, and Philippines.
T. glaucinoides Broth.
(as Thuidium orientale, Dixon 1935: 18, Touw 1968: 242, Tixier 1971: 143).
[Norris & Koponen (1985: 13) treated this species as synonym of Thuidium glaucinum).
Illustrations. Gangulee (1969-80, Fig. 824, as Thuidium orientale); Watanabe (1972, Pl. 9, figs. 1-22).
Habitat. Alt. 700-1740 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11564, 11890 (both in L, MO), 11705, 11761 (both in L), Touw 1968: 242. PAYAP. Chiang Mai: Touw 10296 (L, MO), Touw 1968: 242. PRACHINBURI. Nakhon Nayok: Touw 12254 (L, MO), Touw 1968: 242. RACHASIMA. Nakhon Ratchasima: Touw 12052 (L), 12071 (L, MO), Touw 1968: 242. UDAWN. Loei: Kerr 570b (BM), Dixon 1935: 18; Touw 10451, 10690 , 10722, 10864 , 10899 (all in L, MO), 10749, 10955, 11109 (all in L), Touw 1968: 242.
Range in Asia: Borneo, Mainland China, India, Japan, Kampuchea, Laos, Malay Peninsula, Myanmar, New Guinea, Sumatra, Taiwan, and Vietnam.

T. glaucinum (Mitt.) Bosch & Sande Lac. = T. pristocalyx fide Watanabe 1991: 38.

T. haplohymenium (Harv.) Jaeg.
[Watanabe (1991: 400) reported this species from Thailand in distribution range, but did not cite any Thai specimen. There is no other verifiable reference in reporting this species from Thailand. Thus, it is treated as a provisional record].
T. investe (Mitt.) Jaeg.
Illustrations. Bartram (1939, Pl. 22, fig. 369); Gangulee (1969-80, Fig. 811).
Habitat. Alt. 340-1450 m.
Distribution in Thailand. (MAP) NAKHON SAWAN. Tak: Touw 8046, 8089 (both in L), Touw 1968: 242; Null 628 (L), Watanabe 1991: 44. PAYAP. Chiang Mai: Touw 8871, 8978, 9030, 9489, 10302 (all in L), Touw 1968: 242.
Range in Asia: India, Java, Malay Peninsula, Myanmar, New Guinea, and Philippines.
T. kiassense Williams
Illustrations. Bartram (1939, Pl. 22, fig. 371); Gangulee (1969-80, Fig. 808).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Touw 9413 (L), Watanabe 1991: 43.
Range in Asia: Celebes, India, and Philippines.
T. kuripanum (Dozy & Molk.) Watanabe
[Touw & Falter-van den Haak (1989: 10) has discussed the confusion between Thuidium kuripanum, T. meyenianum, and T. plumulosum. According to them, some of the specimens under T. meyenianum from Asia may belong to T. kuripanum, but the type of T. meyenianum is identical to T. plumulosum. The authors indicated that they had seen collections of T. kuripanum from Thailand, but they did not cite any of them. Watanabe (1991: 40) also listed this species from Thailand in the species distribution, but no specimen was listed].
Illustrations. Touw & Falter-van den Haak (1989, Fig. 14, a-n); Watanabe (1987, Fig. 1, A-L).
Habitat. Altitude Unknown.
Distribution in Thailand. No specific localities were given by Touw & Falter-van den Haak (1989: 44).
Range in Asia. Borneo, Celebes, India, Java, Laos, Malay Peninsula, Myanmar, Nepal, New Guinea, Philippines, Sri Lanka, and Sumatra.
T. magnisporum Watanabe *
[The type, Robbins 3583 (L), was identified as Thuidium glaucinoides by Tixier & Smitinand 1966: 185].
Illustrations. Watanabe (1991, Fig. 1).
Habitat. Alt. 1554 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Robbins 3583 (type, L), Watanabe 1991: 43.
Range in Asia: Endemic to Thailand.

T. meyenianum (Hampe) Dozy & Molk. = T. plumulosum fide Norris & Koponen 1985: 16.

T. orientale Mitt. = T. glaucinoides fide Watanabe 1991: 38.

T. plumulosum(Dozy & Molk.) Dozy & Molk.
(as Thuidium meyenianum, Dixon 1929: 20, Dixon 1932: 35, Dixon 1935: 18, Tixier & Smitinand 1966: 186,Touw 1968: 242, Tixier 1971: 143, Noguchi 1972a: 180).
Illustrations. Gangulee (1969-80, Fig. 807, as Thuidium meyenianum); Norris & Koponen (1985, Fig. 5, k-p); Watanabe (1972, Pl. 4, fig. 1-20, as Thuidium meyenianum).
Habitat. Alt. 40-1300 m.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Sorensen et al 6745 (C), Noguchi 1972a: 180; LNS 32137 (AAU, MO). NAKHON SAWAN. Tak: Touw s.n. (L), Touw 1968: 242. NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw s.n. (L), Touw 1968: 242; Phatthalung: Kerr 292 (BM), Dixon 1932: 35; Sorensen et al 6735 (C), Noguchi 1972a: 180. PATTANI. Narathiwat: CLW 4011, 4035, 4048, 4051, 4053 (all in AAU, MO); Yala: CLW 4135, 4138 (both in AAU, MO). PAYAP. Chiang Mai: Robbins 3539, 3542 (both in PC), Tixier & Smitinand 1966: 186; Tixier s.n. (PC), Tixier 1971: 143; LSaW 1963, 2053, 2564, 2667, 2714, 2720, 2998 (all in AAU, MO); Mae Hong Son: LSaW 2327, 2334, 2336, 2363 (all in AAU, MO). PHITSANULOK. Phitsanulok: LSmW 529, 532, 539, 546, 602, 608, 610, 739, 744, 866 (all in AAU, MO). PHUKET. Trang: CLW 3540, 3730, 3732, 3741, 3742 (all in AAU, MO). PRACHINBURI. Nakhon Nayok: CLW 4246, LSaW 3320, 3383, LSmW 136, 292, 1154, 1162 (all in AAU, MO); Prachin Buri: LSmW 1154, 1162 (both in AAU, MO). RACHABURI. Kanchanaburi: Kwwae Noi Basin Exped. 468 (BKF, PC), Tixier & Smitinand 1966: 186; LSmW 1397, 1406 (both in AAU, MO); Prachuap Khiri Khan: LSmW 1577,1583 (all in AAU, MO); Rat Buri: Larsen 8738, 9367, 9417a (all in C), Noguchi 1972a: 180. RACHASIMA. Nakhon Ratchasima: Tixier s.n. (PC), Tixier 1971: 143. SURAT. Chumphon (Ko Tao): Kerr 340a (BM), Dixon 1929: 20; Surat Thani: Kerr 217, 230, 294 (all in BM), Dixon 1932: 35; Tixier s.n. (PC), Tixier 1971: 143. UDAWN. Khon Kaen: Smitinand 1225 (BKF, PC), Tixier & Smitinand 1966: 186; Loei: Kerr 77 (BM), Dixon 1932: 35; Kerr 579 (BM), Dixon 1935: 18.
Range in Asia: Bangladesh, Borneo, Mainland China, India, Japan, Java, Kampuchea, Laos, Myanmar, Nepal, New Guinea, Philippines, Sikkim, Sri Lanka, Sumatra, Taiwan, and Vietnam.
T. pristocalyx(C. Müll.) Jaeg.
(as Thuidium glaucinum, Dixon 1932: 35, Giesy & Richards 1959: 580, Noguchi 1960: 78, Horikawa & Ando 1964: 29, Tixier & Smitinand 1966: 186, Tixier 1971: 142, Noguchi 1972a: 180).
Illustrations. Gangulee (1969-80, Fig. 823, as Thuidium glaucinum); Norris & Koponen (1985, Fig. 5, e-j, as Thuidium glaucinum); Watanabe (1972, Pl. 10, figs. 1-19, as Thuidium glaucinum).
Habitat. Alt. 450-1600 m.
Distribution in Thailand. (MAP) NAKHON SAWAN. Tak: Touw s.n. (L), Touw 1968: 242. PAYAP. Chiang Mai: Richards 5509 (BO), Giesy & Richards 1959: 580; Yoda 67327, 67346 (both in HIRO), Horikawa & Ando 1964: 29; Tuyama s.n. (NICH), Noguchi 1960: 78; Smitinand 1753, 1751 (both in BKF, US), Reed & Robinson 1967: 67; Tixier s.n. (PC), Tixier 1971: 142; Hansen et al 11397 (C), Noguchi 1972a: 180; LSaW 2171, 2904, 2966 (all in AAU, MO); Touw 8820, 9048 (both in MO); Mae Hong Son: LSaW 2410 (AAU, MO). PHITSANULOK. Phetchabun: LSmW 1060 (AAU, MO); Phitsanulok: LSmW 765, 919 (both in AAU, MO). PRACHINBURI. Nakhon Nayok: CLW 4394, LSmW 124, 222 (all in AAU, MO); Touw 12128 (MO). RACHASIMA. Nakhon Ratchasima: Tixier s.n. (PC), Tixier 1971: 142. SURAT. Chumphon: Kerr 201 (BM), Dixon 1932: 35. UDAWN. Loei: Smitinand 323 (BKF, PC), Tixier & Smitinand 1966: 186; Floto 7439a, 7441a (both in C), Noguchi 1972a: 180; CLW 4653, 4664 (both in AAU, MO); Touw 10937, 10390 (both in MO).
Range in Asia: Bhutan, Borneo, Celebes, Mainland China, India, Japan, Java, Kampuchea, Korea, Malaysia, Myanmar, Nepal, Papua New Guinea, Philippines, Sikkim, Sri Lanka, Sumatra, Taiwan, and Vietnam.
T. rubiginosum Besch.
[Watanabe (1991: 41) reported this species from Thailand, but no Thai specimen was cited. It is treated as a provisional record].
T. tamariscellum (C. Müll.) Bosch & Sande Lac.
Illustrations. Gangulee (1969-80, Fig. 820); Watanabe (1972, Pl. 5, figs. 1-24).
Habitat. Alt. 370-1650 m.
Distribution in Thailand. (MAP) NAKHON SAWAN. Tak: Touw 8177 (L). PAYAP. Chiang Mai: Touw 8472, 8947, 9050, 9185, 9492 (all in L). UDAWN. Loei: Touw 10365 (L), all reported by Touw 1968: 242.
Range in Asia: Bhutan, Borneo, Mainland China, India, Java, Laos, Myanmar, Nepal, Philippines, Sikkim, Sumatra, Taiwan, and Vietnam.

Thyridium cardotii Fleisch. = Mitthyridium fasciculatum fide Menzel & Schultze-Motel 1990: 502.

T. cuspidatum Besch. = Mitthyridium flavum fide Reese et al. 1986: 50.

T. fasciculatum (Hook. & Grev.) Fleisch. == Mitthyridium fasciculatum fide Eddy 1990: 251.

T. flavum (C. Müll.) Fleisch. == Mitthyridium flavum fide Menzel & Schultze-Motel 1990: 503.

T. manii C. Müll. ex Fleisch. = Mitthyridium repens fide Menzel & Schultze-Motel 1990: 505.

T. repens (Harv.) Mitt. == Mitthyridium repense fide Robinson 1975: 434.

Timmiella (De Not.) Limpr. (Pottiaceae)

T. anomala (B.S.G.) Limpr.
Illustrations. Eddy (1990, Fig. 306, A-G); Norris & Koponen (1989, Fig. 5, a-e); Zander (1993, Pl. 1, figs. 1-9).
Habitat. Alt. 1900-2100 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Touw 9356 (L, MO), Touw 1968: 235.
Range in Asia: Mainland China, Japan, Myanmar, Philippines, Taiwan, and Vietnam.

Tortella (Lindb.) Limpr., nom. cons. (Pottiaceae)

T. cyrtobasis Dix.*
Illustrations. Unknown.
Habitat. Alt. 1200 m.
Distribution in Thailand. (MAP) UDAWN. Loei: Kerr 576b (type, BM), Dixon 1935: 7.
Range in Asia: Myanmar.
T. fragilis (Hook.f. & Wils.) Limpr.**
Illustrations. Zander (1993, Pl. 18, figs. 14-16).
Habitat. Alt. 450 m.
Distribution in Thailand. (MAP) PHITSANULOK. Phitsanulok: LSmW 746 (MO). RACHASIMA. Nakhon Ratchasima: LSaW 3159 (MO).
Range in Asia: Mainland China, India, Japan, Siberia, and Sikkim.

Trachyloma Brid. (Pterobryaceae)

T. indicum Mitt.
Illustrations. Gangulee (1969-80, Fig. 603); Hyvönen (1989c, Fig. 10, a-e).
Habitat. Alt. 1150-1740 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11742, 11887 (both in L, MO), Touw 1968: 237; Tagawa & Kitagawa 5043 (NICH), Noguchi 1973: 242. PHITSANULOK. Phetchabun: LSmW 1080a, 1073b (both in MO). UDAWN. Loei: Touw 11036 (L, MO), Touw 1968: 137.
Range in Asia: Borneo, Mainland China, India, Java, Malaysia, New Guinea, Sri Lanka, Sumatra, Taiwan, and Vietnam.

Trachyphyllum Gepp. in Hiern. (Entodontaceae)

T. andoi P. Tx. * = T. carinatum fide Buck 1980: 131.

T. carinatumDix.*
(as Trachyphyllum andoi, Tixier 1971-72: 157; as Platygyrium brevicaudatum, Touw 1968: 225, Tixier 1971: 155).
Illustrations. Tixier (1971-72, Pl. 6, 1-6, as Trachyphyllum andoi).
Habitat. Alt. 800-1650 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Put s.n. (type, BM), Dixon 1932: 38; Tixier 840 (PC), 1063 (holotype of Trachyphyllum andoi, PC), Tixier 1971-72: 157; Touw 8889a, 8902, 8922, 8962, 8993, 9096, 9148, 9150 (all in L), Touw 1968: 225. RACHABURI. Kanchanaburi: LSmW 1401 (AAU, MO).
Range in Asia: Myanmar.
T. inflexum (Harv.) Gepp.
Illustrations. Bartram (1939, Pl. 23, fig. 389); Gangulee (1969-80, Fig. 888).
Habitat. Alt. 30-2000 m.
Distribution in Thailand. (MAP) MAHARAT. Lampang: Suvarnasorn 35 (PC), Tixier & Smitinand 1966: 187. NAKHON SAWAN. Tak: Touw 8035, 8355, 8088, 8059 (all in MO). PATTANI. Narathiwat: CLW 4505 (AAU, MO). PAYAP. Chiang Mai: Robbins 3543, 3546 (both in PC), Tixier & Smitinand 1966: 187; Tixier s.n. (PC), Tixier 1971: 145; Tagawa & Kitagawa 4141 (NICH), Noguchi 1973: 250; LSaW 2755 (AAU, MO); Touw 9425 (MO); Mae Hong Son: LSaW 2264, 2333, 2404 (all in AAU, MO). PHITSANULOK. Phetchabun: Tixier s.n. (PC), Tixier 1971: 145; Phitsanulok: LSmW 918, 921 (both in AAU, MO). PRACHINBURI. Prachin Buri: LSmW 1155 (AAU, MO). RACHABURI. Kanchanaburi: Larsen 8491, 8605, 8606, 8702, 8738 (all in C), Noguchi 1972a: 182; Prachuap Khiri Khan: Kitagawa 11819 (NICH), Noguchi 1973: 250; Rat Buri: Larsen 8859, 9180 (both in C), Noguchi 1972a: 182. UDAWN. Khon Kaen: Kerr 458 (BM), Dixon 1935: 27; Hansen et al 11640 (C), Noguchi 1972a: 182; Loei: CLW 4592 (AAU, MO); Touw 10370, 10376, 11126 (all in MO).
Range in Asia: Bangladesh, Mainland China, India, Java, Kampuchea, Laos, Myanmar, Nepal, Philippines, Sikkim, and Vietnam.
T. inflexum fo. filiforma P. Tx., nom. inval. descr. gall.
[Tixier (1971: 145) intended to publish this as a new taxon by providing a french description. The name is considered to be invalid because no latin diagnosis was given].
Distribution in Thailand. PAYAP. Chiang Mai: alt. 600-1300 m, Tixier s.n. (PC). PHITSANULOK. Phitsanulok: alt. 600 m, Tixier s.n. (PC), Tixier 1971: 145.
Range in Asia: Vietnam.

Trachypodopsis Fleisch. (Trachypodaceae)

T. crispatula Hook. f. == T. serrulata var. crispatula

T. serrulata var. crispatula (Hook. f.) van Zanten
(as Trachypodopsis crispatula, Dixon 1932: 25; as Trachypodopsis serrulata, Reede & Robinson 1967: 66).
Illustrations. Gangulee (1969-80, Fig. 597); Zanten (1959, Pl. 4, fig. 1, c-d).
Habitat. Alt. 900-2570 m.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Kerr 115a (BM), Dixon 1932: 25. PAYAP. Chiang Mai: Richards 5484 (BO), Giesy & Richards 1959: 579; Tuyama s.n. (NICH), Noguchi 1960: 77; Ogawa 67809, 67827, Umesao 67602, 67618, Yoda 67314, 67407, 67424, 67631, 67643, 67688, 67693, 67699, 67731, 67760, 67772, 67789, 67795, 67805 (all in HIRO), Horikawa & Ando 1964: 13; Robbins 3587, 3654 (both in BKF, PC), Tixier & Smitinand 1966: 177; Smitinand 4229 (BKF, US), Reed & Robinson 1967: 66; Hansen et al 11420a, 11431b (both in C), Noguchi 1972a: 174; Tagawa & Kitagawa 2717, 2962, 2970, 3114, 3748, 4082, 4108, 4303 (NICH), Noguchi 1973: 241; Hansen & Smitinand 13017 (MO); LSaW 2495, 2981 (both in AAU, MO); Touw 8746, 8878, 9117, 9627, 9711, 9746, 9873 (all in MO); Chiang Rai: Kitagawa 12428 (NICH), Noguchi 1973: 241. UDAWN. Loei: Tagawa & Kitagawa 993, 1011, 1713, 1841 (all in NICH), Noguchi 1973: 241; CLW 4895, 4896a (both in AAU, MO); Touw 11120 (MO).
Range in Asia: Bhutan, Mainland China, India, Java, Kampuchea, Laos. Myanmar, Nepal, Philippines, Sikkim, Sri Lanka, Sumatra, Taiwan, and Vietnam.

Trachypodopsis serrulata auct non. (P. Beauv.) Fleisch. = T. serrulata var. crispatula fide by this study.

Trachypus Reinw. & Hornsch. (Trachypodaceae)

T. bicolor Reinw. & Hornsch. var. bicolor
(as Trachypus cuspidatum, Dixon 1932: 25; as Trachypus bicolor var. hispidus, Touw 1968: 243, Tixier 1971: 127).
Illustrations. Gangulee (1969-80, Fig. 593); Noguchi (1987-94, Fig. 287); Zanten (1959, Pl. 2, fig. 1, a-f).
Habitat. Alt. 700-2585 m.
Distribution in Thailand. (MAP) NAKHON SAWAN. Tak: Touw 8169, 8205 (both in L, MO), Touw 1968: 243. NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11841 (L), Touw 1968: 243; Tagawa & Kitagawa 5009, 5059, 5080, 5120, 5134 (all in NICH), Noguchi 1973: 241. PAYAP. Chiang Mai: Kerr 4a (BM), Dixon 1932: 25; Richards 5468B, 5479, 5506 (all in BO), Giesy & Richards 1959: 579; Yoda 67231, 67349, 67379, 67405, 67417, 67434, 67436, 67553, 67569, 67595, 67586, 67596, 67872, 67885, 67889, 67891, 67894, 67902, 67917, 67970, 6798 (all in HIRO), Horikawa & Ando 1964: 13; Robbins 3591, 3624, 3641, 3647 (all in BKF, PC), Tixier & Smitinand 1966: 177; Kitagawa 3358, 3366, 3397, 4297, Tagawa & Kitagawa 2943, 3098 (all in NICH); Touw 8498, 8667, 9579, 9632, 10275 (all in L, MO), 8730, 9119, 9717, 9895, 10117 (all in L), Touw 1968: 243; LSaW 1898, 1907, 2442, 2457b, 2515 (all in AAU, MO); Chiang Rai: Kitagawa 3515, 3761, 3762 (all in NICH), Noguchi 1973: 241. PHITSANULOK. Phetchabun: LSmW 1052 (MO). PHUKET. Trang: Kerr 288 (BM), Dixon 1932: 25. PRACHINBURI. Nakhon Nayok: Touw 11113, 12035, 12325 (all in L, MO), Touw 1968: 243. RACHASIMA. Nakhon Ratchasima: Tixier s.n. (PC), Tixier 1971: 127; LSaW 3214 (AAU, MO). UDAWN. Loei: Touw 10555, 10958, 11115 (all in L, MO), Touw 1968: 243; Tagawa & Kitagawa 751, 970a (both in NICH), Noguchi 1973: 241; CLW 4896 (AAU, MO).
Range in Asia: Borneo, Mainland China, India, Japan, Java, Korea, Laos, Myanmar, Nepal, New Guinea, Philippines, Sikkim, Sri Lanka, Sumatra, Taiwan, and Vietnam.

T. bicolor var. hispidus (C. Müll.) Card. = T. bicolor fide Iwatsuki & Tan 1979: 207.

T. bicolor var. viridulus (Mitt.) Zant.
Illustrations. Gangulee (1969-80, Fig. 594).
Habitat. Alt. 750-2750 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11692 (L, MO), Touw 1968: 243. PAYAP. Chiang Mai: Touw 8813, 9738, 10182 (all in L, MO), 9586, 9607a, 9951, 10066 (all in L), Touw 1968: 243. PRACHINBURI. Nakhon Nayok: Touw 12099 (L), Touw 1968: 243. UDAWN. Loei: Touw 10392, 10411 (both in L, MO), 10670, 10741 (both in L), Touw 1968: 243.
Range in Asia: Mainland China, India, Japan, Malaysia, Myanmar, Taiwan, and Vietnam.

T. cuspidatus Flesich. = T. bicolor fide van Zanten 1959: 492.

T. humilis Lindb. var. humilis
Illustrations. Noguchi (1987-94, Fig. 287A); Norris & Koponen (1985, Fig. 2, h-j); Zanten (1959, Pl. 2, fig. 4, a-b).
Habitat. Alt. 1300-1500 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Yoda 67224, 67338 (both in HIRO), Horikawa & Ando 1964: 13; Touw 9586a, 9607 (both in L, MO), Touw 1968: 243.
Range in Asia: Borneo, Mainland China, India, Japan, Java, Kampuchea, Korea, Myanmar, New Guinea, Philippines, Sumatra, Taiwan, and Vietnam.
T. humilis var. flagelliferus (Herz.) Miller
[Tan & Iwatsuki's (1993) annotation citing "Trachypus humilis var. flagellifer (Broth. ex Herz.) Miller in Touw, comb. inval. lacking basionym citation" is incorrect and groundless. Miller (1967) validly published the new combination, T. humilis var. flagellifer (Broth. ex Herz.) Miller. However, the name was not published in Touw's paper as indicated by Tan & Iwatsuki (1993). Touw (1968) reported the taxon from Thailand later. Miller's new combination is considered valid because T. humilis var. tenerrimus (Herz.) Zant. made by Zanten (1959) is nomenclaturally illegitate. When Zanten (1959) made his new combination by reducing T. tenerrimus to the variety level under T. humilis, there already existed a varietal epithet, T. tenerrimus var. flagelliferus Broth. ex Herz. (Herzog 1910), which was available for use. Therefore, T. humilis var. tenerrimus (Broth. ex Herz.) Zant. is superfluous].
Illustrations. Unknown.
Habitat. Alt. 750-1000 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11542, 11607 (both in L, MO), Touw 1968: 243.
Range in Asia: Mainland China, India, Japan, Korea, Sri Lanka, and Vietnam.

Trematodon Michx. (Bruchiaceae)

T. acutus C. Müll. = T. longicollis fide Bartram 1939: 29.

T. conformis Mitt.**
Illustrations. Eddy (1988, Fig. 99, A-G).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: LSaW 2523a (AAU, MO).
Range in Asia: Bhutan, India, Myanmar, Nepal, Sikkim, and Vietnam.
T. longicollis Michx.
(as Trematodon acutus, Dixon 1932: 7, Noguchi 1972a: 172).
Illustrations. Eddy (1988, Fig. 98, A-F); Norris & Koponen (1990, Fig. 1, a-g).
Habitat. Alt. 200-1550 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Touw 10350 (L, MO), Touw 1968: 222; Sorensen et al 6549 (C), Noguchi 1972a: 172. PHITSANULOK. Phitsanulok: Tixier s.n. (PC), Tixier 1971: 107. UDAWN. Loei: Kerr 90 (BM), Dixon 1932: 7.
Range in Asia: Bhutan, India, Japan, Java, Kampuchea, Korea, Myanmar, Papua New Guinea, Philippines, Siberia, Sikkim, Sri Lanka, and Taiwan.

Trichosteleum Mitt. (Sematophyllaceae)

T. boschii (Dozy & Molk.) Jaeg. == Rhaphidostichum boschii fide Seki 1968: 58.

T. brachypelma (C. Müll.) Par. = Rhaphidostichum boschii fide Seki 1968: 59.
[Tan & Iwatsuki (1993: 392) treated this species as a synonym of Trichosteleum boschii].

T. chaetomitriopsis Dix.* == Rhaphidostichum chaetomitriopsis fide Touw 1968: 239.

T. hamatum (Dozy & Molk.) Jaeg. == Radulina hamata fide Buck & Tan 1989: 10.

T. johorense Dix., nom. nud.
[This is a nomen nudum because no description is provided].
Distribution in Thailand. NAKHON SI THAMMARAT. Nakhon Si Thammarat: alt. 300 m, Kerr 320 (BM), Dixon 1932: 43.

T. lamprophyllum (Mitt.) Buck == Acroporium lamprophyllum

T. leptocarpoides Broth.* == Rhaphidostichum leptocarpoides fide Brotherus 1924-25: 434.

T. mammosum (C. Müll.) Jaeg.
Illustrations. Dozy & Molkenboer (1855-70, Tab. 273, as Hypnum mammosum).
Habitat. Alt. 50 m.
Distribution in Thailand. (MAP) PHUKET. Ranong: Kerr 410b (BM), Dixon 1935: 23.
Range in Asia: Mainland China, Java, Kampuchea, Malay Peninsula, and Sumatra.
T. monostictum (Thwait. & Mitt.) Broth. var. laevius Dix.
Illustrations. Unknown.
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Kerr 448b (BM), Dixon 1932: 42.
Range in Asia: Borneo, India, Malaysia, and Sri Lanka.
T. pinnatum Dix.*
Illustrations. Unknown.
Habitat. Alt. 50 m.
Distribution in Thailand. (MAP) PHUKET. Ranong: Kerr 196c (paratype, BM), Dixon 1932: 43.
Range in Asia: Malay Peninsula.
T. pseudomammosum Fleisch.
Illustrations. Fleischer (1904-22, Fig. 213).
Habitat. Alt. 760 m.
Distribution in Thailand. (MAP) RACHASIMA. Nakhon Ratchasima: Robbins 3683 (PC), Tixier & Smitinand 1966: 190.
Range in Asia: Borneo, Mainland China, Java, Kampuchea, Laos, and Vietnam.
T. ruficaule (Thwait. & Mitt.) Tan
(as Clastobryella ruficaule, Dixon 1935: 20; Trichosteleum superserrulatum, Dixon 1935: 23, Tixier 1971: 153).
Illustrations. Tan (1991, Figs. 19-23).
Habitat. Alt. 100-600 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Phatthalung: Kerr 540c (BM), Dixon 1935: 20. PHUKET. Phangnga (Thakuapa): Kerr 417a (type of Trichosteleum superserrulatum, BM), Dixon 1935: 23.
Range in Asia: Borneo, Java, Kampuchea, Malay Peninsula, Philippines, Sri Lanka, and Vietnam.

T. singapurense Fleisch. = Rhaphidostichum boschii fide Seki 1968: 58.

T. stissophyllum (Hampe) Jaeg.**
Illustrations. Gangulee (1969-80, Fig. 978).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: LSmW 1863 (MO).
Range in Asia: Mainland China, India, Java, Kampuchea, Sri Lanka, and Taiwan.

T. superserrulatum Dix.* = T. ruficaule fide Tan 1991: 101.

T. trachycystis Broth.*
Illustrations. Unknown.
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) CHANTHABURI. Trat: Lem Dan, Schmidt s.n. (type, H), Brotherus 1901: 125.
Range in Asia: Endemic to Thailand.

Trichostomum Bruch, nom. cons. (Pottiaceae)

T. angustatum (Mitt.) Fleisch., hom. illeg. == Pseudosymblepharis angustata fide Hilpert 1933: 670.

T. criotum Zand.
(as Hyophila perannulata, Tixier 1971: 119).
Illustrations. Gangulee (1969-80, Fig. 323).
Habitat. Alt. 600-1300 m.
Distribution in Thailand. (MAP) CHANTHABURI. Chanthaburi: Tixier s.n. (PC). PAYAP. Chiang Mai: Tixier s.n. (PC). PHITSANULOK. Phitsanulok: Tixier s.n. (PC), all reported by Tixier 1971: 119.
Range in Asia: India, Sikkim, and Vietnam.
T. sarawakense Dix.
Illustrations. Dixon (1916, Pl. 27, fig. 10).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) PHUKET. Satun: Kerr 265, 266 (both in BM), Dixon 1932: 16.
Range in Asia: Borneo.
T. siamense Broth.*
Illustrations. Unknown.
Habitat. Alt. 1675 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Hosseus s.n. (type, H), Brotherus 1911: 362.
Range in Asia: Endemic to Thailand.
T. stenophyllum (Mitt.) Broth.
(as Didymodon tophaceus, Tixier 1971: 119, Tan & Iwatsuki 1993: 345).
[Dixon (1932: 16) reported this species from Thailand. Wijk et al. (1969) incorrectly cited Trichostomum stenophyllum (Mitt.) Broth. as a "hom. illeg.". Therefore, Tixier (1971: 119) considered the specimens from Thailand, Didymodon tophaceus (Brid.) Lisa. Tan & Iwatsuki (1993: 393) followed Tixier's (1971) treatment. In fact, Trichostomum stenophyllum (Mitt.) Broth. is a valid name. The nomenclatural confusions surrounding this taxon have been clearified by Townsend (1983)].
Illustrations. Townsend (1983, Figs. a & b).
Habitat. Altitude unknown.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Put s.n. (BM), Dixon 1932: 16; Tixier s.n. (BM), Tixier 1971: 119.
Range in Asia: Mainland China, India, Myanmar, Sikkim, and Sri Lanka.
T. tenuirostre (Hook. & Tayl.) Lindb.**
Illustrations. Zander (1993, Pl. 11, figs. 1-6).
Habitat. Alt. 700 m.
Distribution in Thailand. (MAP) PHITSANULOK. Phitsanulok: LSmW 914 (MO).
Range in Asia: Mainland China, India, Malaysia, and Sri Lanka.

Trismegistia (C. Müll.) C. Müll. (Sematophyllaceae)

T. calderensis (Sull.) Broth.
[Tan (1991: 103) indicated that he had seen specimens of this species from Thailand, but no Thai specimen was cited. Tan & Iwatsuki (1993) did not report this species from Indo-China. It is treated as a provisional record].
T. lancifolia (Harv.) Broth.
Illustrations. Bartram (1939, Pl. 24, fig. 407); Gangulee (1969-80, Fig. 951).
Habitat. Alt. 400-1650 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Touw 11695, 11978 (both in MO). PATTANI. Narathiwat: Kerr 55 (BM), Dixon 1932: 41; CLW 4055, 4018 (both in AAU, MO).
Range in Asia: Borneo, India, Java, Malaysia, Nepal, New Guinea, Philippines, Sumatra, and Vietnam.
T. rigida (Hornsch. & Reinw.) Broth.
[Tan (1991) accepted this species, while Tan & Iwatsuki (1993) considered it a synonym of T. lancifolia].
Illustrations. Bartram (1939, Pl. 24, fig. 406).
Habitat. Alt. 790-1740 m.
Distribution in Thailand. (MAP) NAKHON SI THAMMARAT. Nakhon Si Thammarat: Kerr 298 (BM), Dixon 1932: 40; Robbins 3548 (PC), Tixier & Smitinand 1966: 188; Smitinand 1292 (BKF, US), Reed & Robinson 1967: 68; Touw 11658, 11674, 11706, 11731, 11788, 11844, 11851 (all in MO). PHUKET. Ranong: Tixier 4017 (PC), Tixier 1970b: 545. UDAWN. Loei: Touw 10643, 10688 (both in L, MO), Touw 1968: 240.
Range in Asia: Borneo, Java, Malaya Peninsula, New Guinea, Philippines, Sumatra, and Vietnam.
T. undulata Broth. & Yas.
(as Mastopoma perundulatum, Horikawa & Ando 1964: 34, Tixier & Smitinand 1966: 188, Tixier 1971: 147).
Illustrations. Horikawa & Ando (1964, Fig. 7, as Mastopoma perundulatum).
Habitat. Alt. 2000-2570 m.
Distribution in Thailand. (MAP) PAYAP. Chiang Mai: Ogawa 67825, Umesao 67616, Yoda 67664, 67668, 67701, 67739, 67757, 67898, 67900, 67904 (all in HIRO), Horikawa & Ando 1964: 34; Robbins 3628 (PC), Tixier & Smitinand 1966: 188; Touw 9747, 10173, 10232 (all in MO).
Range in Asia: Mainland China, Laos, and Taiwan.

Tristichella spiculifera Dix. == Clastobryum spiculiferum fide Tan & Iwatsuki 1992: 151.

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