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The Cutting Edge
Volume XVI, Number 1, January 2009
News and Notes |
Leaps and Bounds | Germane Literature |
Season's Pick | Annotate your copy
CONVOLVULACEAE. Ipomoea suaveolens (M. Martens & Galeotti)
Hemsl. (Hammel & Pérez 24994) was one of several interesting Ipomoea
spp. collected by Barry Hammel and wife, INB herbarium assistant Isabel
Pérez, on a recent trip to Parque Nacional Diriá in the center of the
Península de Nicoya. The excitement over this rather uninspiring, white-flowered
sp.—similar enough to I. squamosa Choisy to have been pressed and momentarily
forgotten—was delayed by the simultaneous (re)discovery of two other rather more
spectacularly flowered Ipomoea spp. (see “Season's Pick”), which Hammel
had never before seen (live). Nevertheless, only the comparatively boring-looking one
turned out to be a country record: I. suaveolens had been reported previously
only from Mexico, Guatemala, and El Salvador. A second new Ipomoea for Costa
Rica was discovered even more belatedly, among not-so-recent collections from Baja Talamanca
identified as I. indica (Burm.) Merr. (J. González 3002,
INB; Wilkin 474, CR). This intriguing material has flowers and sepals somewhat
like those of I. indica, but calyx trichomes more like those of I.
nil (L.) Roth or I. purpurea (L.) Roth; however, unlike the two last-mentioned spp.,
it has only bilobed stigmas (vs. trilobed), as well as biloculate ovaries. Hammel had
decided to relegate these anomalous specimens to discussion notes but, thanks to correspondence
with Ipomoea specialist J. Andrew McDonald (PAUH), we now have a
solid sp. identification: Ipomoea variabilis (Schltdl. & Cham.) Choisy,
otherwise known for certain only from Mexico, Guatemala, and Honduras.
ULMACEAE. Ampelocera hottlei (Standl.) Standl. is a sp. that had been
collected in every country from Mexico to Colombia except Costa Rica, so it is no
great surprise that it should turn up there. And now it apparently has, in the
extreme northwestern corner of the country, not far from the Peñas Blancas border
crossing into Nicaragua, where it is “abundante en bosque primario” (according
to the collector). The initial identification by INB hotshots Daniel
Santamaría (who provided this report) and Alexánder
Rodríguez has been confirmed by Manual co-PI Nelson Zamora,
who knows the sp. well from his work in Honduras; this is reassuring, since the name
A. hottlei was misapplied for many years, at the Estación Biológica
La Selva, to the superficially similar Celtis schippii Standl. (Cannabaceae).
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