tion of a conduplicate leaf, but there is no indication of 
a pseudobulb. However, the presence of a leaf-blade in- 
dicates the existence of a rudimentary pseudobulb con- 
cealed within the sheaths. Just such shoots are frequent 
among the caulescent Maxillarias, and when isolated, do 
not, of course, show the pseudobulb which is almost in- 
‘ariably present between these shoots in complete spec- 
imens. 
After making due allowance for this fact, the drawing 
of the floral parts supplemented by the description shows 
that the species is conspecific with the plant described as 
Camaridium Wercklet of which we have an analytical 
drawing made from the type. Not only the size and con- 
tour of the dried flowers, as shown by both drawings, but 
especially the form of the lip and its relative proportion 
to the column appear to be identical in these concepts. 
A collection from Santa Clara de Cartago, Costa 
Rica (C. H. Lankester 563) shows a sheathed stem close- 
ly similar to that of the typical Mawillaria vaginalis lack- 
ing only the terminal leaf-blade. Other fragments of this 
collection show sheathed stems with scattered pseudo- 
bulbs as in Camaridium Wercklei. The leaf-blades appear 
to be of exactly the form of the latter concept, but the 
largest one reaches a size of 19 cm. in length and 4.7 em. 
in width. Its floral parts seem to be avery close approxi- 
mation to those of Camaridium Wercklei, but while the 
lip is about the same size as in the latter concept, the 
sepals are markedly larger and range from 38.8 to 4.6 
em. in length. 
It appears, therefore, that these forms are so similar 
that they should be regarded as representing one species. 
Ornithidium Schlechterianum C. Schweinfurth 
nom. MOV. 
Camaridium imbricatum Schlechter in Beihefte Bot. 
[94] 
