PLURITUBERCULATA. ( 37) ONCIDIUM. 
§ 11. PLuRITUBERCULATA. 
* This large group, consisting as it does of species, or perhaps forms, 
cxsellingy difficult to distinguish, may ss classified in the following manner : 
1, ROSTRATA.—A small number have the stigma extended into a long 
slender beak. 
2. SARCOPTERA.—Others have the column-wings files hy, and curved 
oe wards, with a — =~ ular apex. All these agree in having the 
gland of the pollen hard, ho and — with a triangular erect 
process on each side of a seantle pollen 
OPTE ainder et neither a rostrate stigma nor 
ings, and the ns ig apparatus is in the usual state. A few 
owers——HETERANTHA ; i 
M 
m 
eo 
e 
3 
d 
very considerably obsolete——obsoleta; in others the column-wings are 
expanded into a conspicuous membrane——expansa. 
Undoubtedly this is ate n artificial arrangement, with the exception of 
the Rostrata and Sarcoptera > bi, in the present state of the genus, with so 
much more to learn as to the true value of characters, and the exact 
; ny; st, +h g 
ANALYSIS OF THE SPECIES. 
I, ROSTRATA. 
Columnee alis integris 126. Boothianum. 
——_—_—_———_ bi ipartitis hastatis, laciniis linearibus. - 127. Weddelli. 
oe bilobis hastatis lac. acuminatis . 128. Schlimia. 
—— Sasi couilentitons eee 129. tigratum. 
II. SARCOPTERA. 
Columnz alis bilobis. : 
Labellum basi et sieve WS gears + + . « + + 130. Carthaginense. 
Cristze ‘aheeonks 5, ¥ © is = 2 es ASL tide. 
noe 3, dentie, 2 | ahatie - + « « 132, hematochilum. 
Columnee alis integris. 
Crista carinata dente hepard ia 3r8 - 133. Lanceanum. 
elevata ae asia bere, baseos 2, apicis 3 
Labellum basi et apice equilatum . . . . . 184. Cavendishianwm. 
——_—_———angustius. . .. . - 135. bicallosum. 
Til. HYMENOPTERA. 
A. HETERANTHA. 
Labellum apice et basi equilatum . . . . . .°. 186. pentadactylon. 
—_—_— basi multo angustius. 2 
sepala et petala acuta . . . . . . . 187. cultratum. 
_—_— retusa ow . . ly 138. retusum. 
