Oaxacan and the Guatemalan species. Concerning the 
flower of U. spectabilis, Steyermark states: ‘‘ Corolla 
whitish at base, lavender-orchid in upper half.’’ 
Introduced into the horticultural world in 1857, Uro- 
skinnera spectabilis immediately attracted wide interest 
in Kurope. The plant was grown in a number of horti- 
cultural centres, if we are to judge from the numerous 
references to it and the illustrations in horticultural pub- 
lications of the latter half of the 19th Century. It is 
probable that collections from cultivated material have 
been preserved in various Kuropean herbaria, but the 
present European hostilities have precluded the possibil- 
ity of studying them. 
Through the kindness of Mr. Charles A. Weatherby 
and Professor L. H. Bailey, I learned that Uroshkinnera 
spectabilis is still cultivated in the Botanic Gardens at 
Georgetown, British Guiana. In 1922, Professor Bailey 
collected a specimen from these Gardens; I was fortunate 
in being able to examine this specimen which is preserved 
in the Bailey Hortorium. Through the kindness of Dr. 
ki. B. Martyn, Director of the Georgetown Gardens, a 
number of additional specimens of Uroskinnera specta- 
bilis have recently been procured for study. 
An examination of these specimens and a comparison 
of them with the type description and with Steyermark’s 
wild material of this species from Guatemala indicates 
that the leaves tend to become smaller and thinner in 
cultivation. Aberrations in the flowers of the cultivated 
plants are also frequent. A flower taken from one of the 
Georgetown specimens (Econ. Herb. Oakes Ames No. 
8473) had a six-toothed instead of four-toothed calyx, 
a trifid instead of a bifid stigma, and five fertile stamens 
without a staminodium instead of four fertile stamens 
with one staminodium. 
Uroskinnera spectabilis is most closely allied to U. 
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