APOSTASIACEH OF THE MALAY PENINSULA. 381 
DeNpROCOLLA MacuLATA, Ridl., sp. nova. Caules usque ad 
3 poll. longi, graciles. Folia 4 poll. longa, $ poll. lata, linearia, 
coriacea, apice biloba. Scapus 3 poll. longus, gracilis, strictus ; 
racemi rhachis incrassata ; bractes ovate, acute. Flores parvi ; 
pedicelli longiusculi, graciles. Sepalwm posticum lanceolatum 
spathulatum, lateralia similia basi dilatata, flava. Petala 
sepalis angustiora, lanceolata, spathulata, flava.  Labelluin 
sepalis brevius; lobi laterales rotundati obtusi denticulati 
pubescentes flavi kermesino-maculati, medius linearis pubescens 
flavus; saccus longiusculus obtusus; callus oblongus, retusus. 
Columna crassa ; pes longiusculus, flavescenti-viridis ; ale late, 
incurve, inter se appresse; clinandrium parvum, ovale. 
Anthera oblonga, obtuse longi-rostrata, alba; pollinia semi- 
elliptica ; discus hippocrepiformis. 
Hab. Singapore: Bukit Mandai! 
I have only once had this plant brought to me. It is allied 
to D. Trichoglottis, but has much longer and narrower leaves, 
a longer and more slender peduncle, and the mid-lobe of the 
lip is a rather long linear process. The colouring, too, is quite 
different. 
D. Tricnociortis, Ridl. Sarcochilus Trichoglottis, Hook. f., 
Fl. Brit. Ind., vi. p. 39, et Ic. Pl., t. 2123. Caulis 2-6 poll. 
longus; radices longe, copiose, albe. Folia lorata, obtusa, 
ineequaliter biloba, canaliculata; vagine ferme } poll. longe, 
rugose compresse. Pedunculi foliis sepe breviores, validi; 
racemi rhachis incrassata. Bractee ovate, a mucrone crasso 
+ poll. longo terminate: pedicelli 3 poll. longi. Sepalwm 
posticum } poll. longum lanceolatum acutum, lateralia postico 
multo latiora ovato-lanceolata acuta carinata inequilatera 
pallide flava. Petala sepalis angustiora, spathulata, pallide 
flava. Labellum sepalis multo brevius, citrinum, basi obtuse 
saccatum ; lobi laterales lati truncati erecti longe ciliati, medius 
brevissimus truncatus sub apice mucronulatus; callus parvus, 
oblongus, retusus, in disco inter lobos laterales situs; juxta 
callum macula aurantiaca adest; macula ochracee extra 
labellum in lobis lateralibus et e medio adsunt. Coluwmna alba, 
brevis, lata, in ventre profunde canaliculata; margines crassi ; 
pes tenuis, linearis, aurantiacus; clinandrium subprofundum ; 
dentes 2 prope rostellum (verosimiliter stelidia) minuti. 
Anthera tenuis, ovata, obtusa, alba; pollinia minuta, oblonga, 
