358 MR. HENRY RIDLEY ON ORCHIDEZ AND 
Columna brevis, crassa ; stelidia brevia, dentiformia; rostellam 
breve, distincte bilobum; pollinia globosa ; caudiculus linearis. 
Hab. Lankawi: Goa Chirita, Curtis, n. 2817! 
This species is allied to JT. quadricornuta, Kurz, of the 
Nicobar Islands, but differs in the entire, not bifid terminal 
lobe of the lip and the two ridges running from the posterior 
horns, and meeting at the base of the epichil in the form of a 
pubescent callus. 
ACAMPH, Lindl. 
A. PENANGIANA, Ridl., sp. nova. Caulis brevis, crassus. Folia 
7 poll. longa, 14 poll. lata, lorata, valde rigide coriacea, 
ecarinata, apice vix biloba. Racemus 23 poll. longus; pedun- 
culus crassus, teres; vagine annuliformes. Bractew ovate, 
obtuse, cucullate. Flores mediocres, subcorymbosi, carnosi ; 
ovarium cum pedicello 4 poll. longum, crasse cylindricum. 
Sepala 4 poll. longa, } poll. lata, late oblongo-obovata, obtusa, 
flava in dorso dense sanguineo-maculata; pagina interior 
sanguinea transversim fasciata. Petala cum sepalis squilonga 
concoloria, angustiora, spathulata, obtusa. Labellum petalis 
paullo longius, ecalcaratum ; lobi laterales elongati curvi obtusi 
erecti crassi flavi rubro—3-striati, medius ovatus subacutus 
crassus canaliculatus; discus inter lobos laterales pubescens. 
Columna brevis, valde crassa, conica, flava, basi a 2 costis 
semicircularibus rosaceis ornata; clinandrium planum, in 
margine haud elevatum. Anthera late ovata, apice obtusa; 
rostrum parvum; pollinia seniglobosa; caudiculus linearis 
angustatus ; discus ovalis; stelidia minuta, erecta, dentiformia. 
Stigma grande, latum; rostellum deflexum bifidum, lobis 
acutis dentiformibus. 
Hab. Penang: Government Hill, C. Curtis! 
This is allied to Acampe longifolia, Lindl., Fol. Orchid. 
Acampe, p. 1 (i.e., Vanda multiflora, Lindl., Collect. Bot., t. 38), 
a native of Tenasserim; but has no spur. 
SACCOLABIUM, Blume. 
S. (§ Micranru#) perpusittum, Hook. f., Fl. Brit. Ind., vi. 
p- 56, et Ic. Pl., t. 2129 A. 
Hab. Singapore: Mangrove swamps; Kranji! Sungei Buloh! 
Common on branches of trees. 
