Maaillaria longibracteata (Camaridium longibracteatum 
Lindl.) chiefly in having markedly narrower leaves which 
vary from narrowly oblong-lanceolate to linear-oblong. 
The uppermost bract on the peduncle also is much 
shorter than the pedicellate ovary and not subequally 
long as in M. longibracteata. 
In the Ames Herbarium there is an Ecuadorian col- 
lection (Penland & Summers 243) which differs from 
typical C. duteo-rubrum in having narrow linear-lanceo- 
late leaves and rather smaller flowers than usual in that 
concept, but the general contour of the floral segments 
is closely similar and the lip is an exact counterpart of 
that drawn on the type sheet of C. luteo-rubrum. 
The concept described as Mawillaria cassapensis, which 
is represented in the Ames Herbarium by drawings of 
the habit and floral analyses from the Reichenbach Her- 
barium, is also a narrow-leaved plant with loosely branch- 
ing stems, and, according to the description, with bracts 
subequaling the pedicellate ovary. Whether the stems 
are simple as in Camaridium luteo-rubrum or branched as 
in Mawillaria cassapensis is a highly variable character 
and consequently unimportant. In the drawing of the 
type, also, the upper bract is shown as much shorter than 
the pedicellate ovary, as in Camaridium luteo-rubrum, 
and not subequaling it as described. Finally, the floral 
analysis of Mawillaria cassapensis shows no discernible 
discrepancy from the flower of C. luteo-rubrum. It ap- 
pears to be desirable, therefore, to treat the concepts 
typified by Camaridium luteo-rubrum and Mawillaria cas- 
sapensis as variants of the polymorphic species, M. longi- 
bracteata. 
Maxillaria multicaulis (Poepp. & Endl.) C. 
Schweinfurth comb, nov. 
Stagonanthus multicaulis Poeppig & Endlicher Nov. 
Gen. ac Sp. 1 (1886) 40, t. 69. 
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