A Grammatical Dictionary of Botanical Latin

arachnoideus,-a,-um (adj.A), araneosus,-a,-um (adj.A): arachnoid, araneose, araneous, cobwebby, full of cobwebs; “resembling cobweb in appearance; seeming to be covered with cobweb, in consequence of the entanglement of long white hairs” (Lindley); “of slender entangled hairs” (Fernald 1950); (fungi) “cobweblike; covered with, or consisting of delicate hairs or fibrils; ‘araneose’ (S&D) [> Gk. arachnE (s.f.I), Lat. araneus (s.m.II) ‘spider or spider’s web;’ arachnion (s.n.II), a spider’s web; aranea Lat. spider’s web]; cf. byssaceus,-a,-um (adj.A); cf. floccosus,-a,-um (adj.A), floccose, clothed with locks or flocks of soft hair or wool” (Fernald 1950);

- foliis caulinis superioribus supra hirsuto-villosis glabrisve subtus tomentellis vel arachnoideis (F. Mueller), with the upper stem leaves hirsuto-villous above or glabrous, underneath tomentellous or arachnoid.

- bracteolis arachnoideis numerosis squamis 20-24 marginatis (Boissier), with the bracteoles cobwebby, numerous, bordered with 20-24 scales.

- [alga] CONFERVA FLOCCOSA, filis simplicibus arachnoideis in stratum flavo-viride implicatis, articulis diametro subaequalibus (Agardh), with the threads simple [i.e. unbranched], cob-webby, interwoven into a yello-green layer, nearly equally the articuli [i.e. joints] in diameter.

- [lichen] thallus podetiis gracilescentibus vel gracilibus mediocris altitudine (1 -3-pollicaribus), axi pallide ochraceo arachnoideo-tomentoso aut denudato (Nyl.), with podetia tending to slenderness or moderately slender, (1 – 3 inches in height, with the axis pale ochraceous [i.e. yellow-brown] arachnoid-tomentose [i.e. like spider-webs] or bare.