32 
margine levi.—— All parts of tropical South America, 
east of the Andes —— There is no doubt that C. macro- 
carpon is this plant, whose name should therefore, accord- 
ing to the strict laws of priority, be changed. But the 
name macrocarpon is unmeaning, and much incon- 
venience would arise from the restitution of it. Itisa 
very common variable plant, sometimes even losing its 
spots, as in C. Wailesii from Honduras. ——Monstrous 
Forms. Monachanthus viridis, Lindl. no. 1. Bot. Reg. 
t. 1752, from Brazil is a monster with no cirrhi to the 
column, and the lip perfectly undivided. C. cristatum 
L. no. 7. is another monster, as is proved, at plate 1951 
of the Botanical Register. | 
2. C. maculatum (H. B. K. 7. 157. t. 630.) ; ** foliolis calycinis 
duobus interioribus maculatis, labello ciliato." Tur- 
baco in New Grenada.——All that can be said about this 
species is that it certainly is not the C. maculatum of our 
gardens. At the time T referred the latter to it I was 4 
not aware that it had been figured. Nothing like it in 
a cultivated state has yet been seen. 
8. C. integerrimum (Hooker Bot. Mag. t. 3893. C. macula- 
tum Lindl. Bot. Reg. 1841. t. 62. Bateman Orch. . 
Mex. et Guat. t. 11. nec H. B. K.) ; sepalis petalisque 
conniventibus, labello carnoso galeato basi inflexo late- 
ribus suis invicem imbricantibus margine levi vel serrato. 
— — Guatemala.——This is very nearly the same as C. 
tridentatum, from which it differs in its helmet-shaped 
lip, having the lower edges brought together so as to press 
upon the column, instead of being wide apart, and being 
generally serrated, although sometimes smooth. It is 
certainly not the species so named by Humboldt, which 
was found near Turbaco in New Grenada. That plant 
Is represented with the labellum quite open, not con- 
tracted and curved inwards near the column, and sur- 
rounded by a broad plaited border, called in the descrip- 
tion “ ciliatum.” 
4. C. planiceps (Lindl. in Bot. Reg. 1843. t. 9.); sepalis 1 
petalisque ovatis conniventibus, labello carnoso galeato | 
rotundato compresso apiculato indiviso margine serrato. 
Spanish Main.— Flowers green and yellow. The 
habit is that of C. integerrimum, tridentatum,. and semi- 
apertum, from the second of which it differs from its ser- 
