226 MR. HENRY RIDLEY ON ORCHIDEZ AND 
folioram vaginis fere omnino tectus. Folia circa 4, 6 poll. 
longa, 2 poll. lata, ovata aut ovato-lanceolata, acuta, admodum 
obliqua, plicata, late virentia, nervis 8 depressis; petiolt 2 poll. 
longi, lati, profunde canaliculati; vagine 1 poll. longee. 
Racemus 6 poll. longus; rhachis alata, basi nuda, superne 
crispo-angulata. Flores mediocres, reversi; pedicelli 3 poll. 
longi, graciles, purpurei. Sepala lorata, patula, lateralia 
¢ poll. longa convoluta purpurascentia. Petala sepalis angus- 
tiora, linearia, pallidiora. Labellwm unguiculatum, latum; 
lamina } poll. lata, late oblonga, truncata, deflexa, obscure 
crenulata, atro-purpurea; canaliculus medianus olivaceus; 
callus basalis viridis e cost& rect& transversd (in cuspidibus 
purpurea) structus. Colwmna suberecta, apice cucullata recurva, 
albescenti-flava; stelidia parva, oblonga, truncata; clinandril 
margo integer, rotundatus; anthera plana, flava. 
Hab, Perak: Maxwell’s Hill, alt. 3,000 feet ! 
Grew with Microstylis acutangula, Hook. f. Flowered in 
the Singapore Garden. Allied to DL. atropurpurea, Lindl., of 
Ceylon; but differs, inter alia, in the form of the callus. 
Liparts Marneavs, Ridl. Microstylis Maingayi, Hook. f., Ic. 
Pl, t. 1826, et Fl. Brit. Ind., v. p. 689. 
Hab. Penang: Waterfall Hill, C. Curtis! 
Malacca: Mt. Ophir! 
Perak: Larut Hills! 
Kedah: Kedah Peak ! 
Grows on vertical, constantly wet, rock-faces. The amount 
of laciniation of the lip is very irregular; in a Penang 
specimen the lip was distinctly 2-lobed. 
L. parvunta, Ridl. Microstylis parvula, Hook. f., Ic. Pl. 
t. 1827 B, et Fl. Brit. Ind., v. p. 690. 
Hab. Perak: Larut Hills, Maxwell’s Hill, on dry rocks! 
This, and the preceding species, with L. furcata [7.2.5 
Microstylis furcata, Hook. f., Ic. Pl., t. 1827 A, et Fi. Brit. 
Ind., v. p. 690], are closely allied plants of quite peculiar habit, 
possessing a single large well developed leaf, borne on a short 
stem covered with three or four sheathing leaves, which 158, 
after flowering, developed into a large, oval, thick, pale green 
pseudo-bulb. Sir Joseph Hooker, Ic. Pl., t. 1826, is in doubt 
whether to refer the first-named to Microstylis or Lipars, 
deciding eventually for the former. I am more inclined to 
