‘Shorter 
Sarcanthus.]  oxuvur. omonrpgx. (J.D. Hooker.) 71 
Parishii, with even more remarkable pollinia. [The strap of the stipitate pollinia must 
resemble that of Saccolab. sect. Uncifera, J. D. H.]. 
CLEISOSTOMA, Blume. 
Differs from Sarcanthus only in the spur not being septate, and from 
Saccolabium in having a dorsal scale or callus within the spur beneath 
the column.—Species (known) probably 15 or 20. 
Under Sarcanthus I have given my reason for not bringing that genus under this ; 
to which I may add that if bcth were brought under Saccolabium, the result would be 
Perhaps more satisfactory still. ‘here are no characters of habit or habitat whereby 
the three can be distinguished, and the structural are very minute and often 
obscure. In Cleisostoma and Sarcanthus the dorsal appendage within the spur is either 
a 2-lobed callus or a thin scale, suggesting the propriety of rearranging the species of 
both genera by this character, but it is one so difficult of accurate observation in 
dried specimens that I hesitate to adopt it. 
* Stem more or less elongate. Peduncle stout, usually longer than the 
leaves, branched, erect ; flowers in short spikes or racemes terminating the 
branches, (as in Sarcanthus pallidus). 
l. C. latifolium, Lindl. in Bot. Reg. 1840, Misc. 60; stem very 
stout, leaves 21-9 by 11-2 in., from oblong to lorate, peduncle very stout, 
Side lobes of lip short truncate, midlobe reniformly ovate caruncled 
towards the base, spur saccate. Walp. Ann. vi. 889. Ù. fuscum, Lindl. in 
Journ. Hort, Soc. 1850, 80; Walp. Le. 
, PERAK, Wray, (Ic. Scortechini) ; SINGAPORE and MALacoa, Griffith. (Kew Dis- 
trib. 9235), Maingay, (KA. 1647). 
Stem 6-10 in, as thick as the middle finger. Leaves thickly coriaceous, flat, 
obtusely broadly 2-lobed, base narrowed. Peduncle 12-18 iv., rather flexuous ; 
sheaths annular; branches 1-2 in.; rachis of spikes very stout, bracts minute, 
road ; flowers $ in. diam.; sepals and petals obovate-oblong, greenish margined or 
Spotted with red-brown ; spur sometimes inflated below, dorsal scale truncate erose ; 
column very short, rostellum inconspicuous; anther low, broad, strap of globose 
pollinia linear, gland small. Capsule 1 in., fusiform.—Of Lindley’s C. latifolium 
t ere ie no specimen in his Herbarium, It was described from a Singapore plant 
cultivated by Loddiges, and agrees in characters with C. fuscum, of which Lindley 
Imself says it is probably only a form of latifolium. 
d 2. 9. andamanicum, Hook. f.; leaves 4-6 by 3-4 in. lorate, pe- 
uncle equalling or exceeding the leaves, side lobes of lip short truncate, 
mi “obe very short reniform, spur cylindric. 
SOUTH ANDAMAN Israwps, Kurz. 
Stem as thick as a goose-quill, Leaves very coriaceous, recurved, obtusely un- 
ke: 2-lobed. Peduncle 5-7 in.; sheaths annular and bracts and flowers as in 
In; latifolium ; flowers } in. diam., pale greenish-yellow with a purple band within the 
tellu] lip yellow, spur spotted with red, dorsal callus retuse ; column very shor b Tor 
l d large, prominent ; anther ovate, acuminate, strap of globose pollinia s en er, 
Zeg medium-sized.—Closely allied to latifolium, but much more slender, leaves 
aller and narrower and spur cylindric. 
8. C. maculosum, Lindl. Gen Sp. Orchid. 227; in Bot. Reg. 
EAR 37; leaves 6-7 by i-i iat narrowly lorate, peduncle stout 
lobe very. about equalling the leaves, side lobes of lip short truneate, mi - 
leat xa ghort ovate papillose, spur saccate. Walp. Ann. vi. 888. C. ga- 
Um, Thwaites Enum. 305. Saccolabium galeatum, Gardn. mss. 
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