a floral analysis). It seems to me, therefore, that the 
above varietal designation is preferable, for the reasons 
indicated in the following table of comparisons. 
Odontoglossum brevifolium 
Pseubobulbs ovoid to cylindric- 
ovoid, up to 5 em. long. 
Leaves oval to oblong-elliptic, 
up to 15 em. long and 7.6 cm. 
wide. 
Sepals suborbicular to round- 
obovate, little longer than broad. 
Lip deeply bilobed at the apex. 
Oncidium Weberbauerianum 
Pseudobulbs “‘linear,’’ up to 10 
em. long. 
Leaves oblong, up to 20 em. long 
and 4.5 em. wide. 
Sepals oblong, much longer than 
broad. 
Lip obscurely lobulate in front. 
Odontoglossum flavescens fPo/fe in Orch. Rev. 
12 (1904) 92. 
This species was too inadequately described to furnish 
a definite concept that can be visualized or keyed. The 
description, which gives no hint of vegetative parts, 
merely states that the flowers are clear yellow, that the 
segments are elliptical-oblong and subconnivent, while 
the blade of the lip is suberect, rounded below, with an 
oblong obtuse apex and has a very large 2-lobed callus 
appressed to the base of the column. It is noted as being 
allied to O. retuswm Lindl., and was introduced by 
Messrs. F. Sander & Co., presumably from Ecuador 
and Peru. 
A photograph of the type specimen in the Herbarium 
at Kew shows fragments of an elliptical-oblong pseudo- 
bulb which is about 8.5 em. long and appears to be bifo- 
liate or trifoliate. The single leaf shown is oblong-linear, 
short-acuminate, slightly narrowed to a sessile base, over 
51cm. long and about 2.4cm. wide, with the mid-nerve 
very prominent beneath. The inflorescence shows a very 
loosely branched panicle with two horizontally spreading 
branches. ‘The flowers are distant, secund, on long ped- 
icels (up to 2 cm. long) much exceeding the minute 
bracts, and the segments appear to be about 1 cm. long. 
[ 65 ] 
