were formerly referred by Lindley (Fol. Orch. Odonto- 
glossum p. 15) to O. aureo-purpureum. It was separated 
from the earlier species by its more compact densely 
flowered panicles of larger flowers. However, two recent 
Peruvian collections (Vargas 2879 and Metcalf 30742) 
have the loose panicles seen in the typical Venezuelan 
O. aureo-purpureum, but they have larger flowers than 
those of the type which they appear to match in floral 
details. 
Odontoglossum Koehleriis described as having a rather 
densely flowered panicle, like O. compactum; but its 
floral segments, except for being slightly broader, coin- 
cide well with those of typical O. aureo-purpureum. 
It seems to me, therefore, that O. awreo-purpureum 
is a widely variable species which includes the above 
concepts. 
Odontoglossum brevifolium Lind/. var. Weber- 
bauerianum (Kriinzl.) C. Schweinfurth comb. nov. 
Oncidium Weberbauerianum Krinzlin in Engler Bot. 
Jahrb. 37 (1906) 389. 
Cyrtochilum Weberbauerianum Krinzlin in Notizbl. 
Bot. Gart. Berlin 7 (1917) 95, nomen nudum, in clavi; 
in Engler Pflanzenreich LV. 50, pt. 2 (Heft 80) (1922) 
60, fig. 5H, a-c. 
Odontoglossum Weberbauerianum Schlechter in Fedde 
Repert. Beih. 27 (1924) 109. 
In Fedde Repert. Beih. 9 (1921) 170, Dr. Schlechter 
cites Oncidium Weberbauerianum as a synonym of the 
well-known Odontoglossum brevifolium Lindl. 
I have not seen any figure of Oncidium Weberbaueri- 
anum, but, after examining an iso-type collection of 
Odontoglossum brevifolium, there appear to be several 
marked differences between that species and the descrip- 
tion of Cyrtochilum Weberbauerianum (supplemented by 
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