APOSTASIACEZ OF THE MALAY PENINSULA. 345 
and Campylocentron), confined to tropical and subtropical Asia, 
and to Africa. The section can be subdivided into the 
Ficalearatee and Calcarate ; according to the presence or 
absence of a spur; and the latter again according to the 
presence or absence of a foot to the column. 
Of the spurless genera Luisda, Cottonia, Adenoncos (which, 
by some accident, has been mixed up in some books with 
Microsaccus, a genus closely allied to Saccolabium, if, indeed, it 
should not be merged in it) form a group characterised by the 
narrow, nearly entire, flat lip. Iwisia is distinguished by its 
terete leaves ; Adenoncos has them narrowly lanceolate and very 
thick; and Cottonia has the broader, flattened leaves common 
to many other genera in the section. Esmeralda is a good 
genus, with a spurless lip, two small lateral lobes, and a broad 
epichil. 2H. Cathcarti, Reichb. f., Xenia Orch., ii. p. 39, and 
i. Clarkei, Reichb. f., Gard. Chron. (1886) 1. p. 552, belong 
to it; and I am inclined to refer to it also Vanda Sanderiana, 
Reichb. f., on account of the peculiar form of the lip, which is 
very unlike that of a typical Vanda, and much more like that 
of Hsmeralda. V. cristata, Lindl., and V. alpina, Lindl., are 
certainly nearer to Esmeralda than to Vanda. 
Stauropsis, Reichb. f. in Hamb. Gartenz., xvi. (1860) p. 117 
(Xenia Orch. ii. p. 7 ?), was a genus founded by Reichenbach 
to include Trichoglottis pallens, Lindl., from Manila, a little- 
known plant; S. violacea, Reichb. f. (possibly Phalenopsis 
violacea, Teysm. and Binn.); and T'richoglottis philippinensis, 
Lind]., one of Cuming’s Philippine plants. To these Bentham 
added (Benth. and Hook., Gen. Pl., iii. p. 572) Fieldia lisso- 
chiloides, Gaudich., Vanda gigantea, Lindl., Vanda undulata, 
Lindl., and Trichoglottis fasciata, Reichb. f. 
The original three seem to belong to the genus Phalaenopsis ; 
while, of the remainder, Fieldia and Vanda gigantea, Lindl., 
with probably V. wndulata, Lindl. form a good genus, 
characterised by the fleshy trilobed lip with erect short lateral 
lobes, and a callus at the base of the epichil with a depression 
in the middle of the lip and short stout column. Gandichaud’s 
name, Fieldia, is preoccupied, so that another name is wanted 
for this genus; and I would suggest that Bentham’s generic 
name of Stauropsis should be retained for this. 
Trichoglottis fasciata, Reichb. f., differs from Trichoglottis, 
Blume, in the absence of a spur, and from Stauropsis in the 
