58 Materials for a Flora of the Malayan Peninsula. 



crummatum ; Boxall states ho was with the Collector on Kedah Peak 

 when the plant was obtained and sa3's that it is D. hymenoptenun 

 Hook. fil. The author's description tits none of these species. 



D. peral-rnse Hook. fil. Fl. Brit. Ind. V. 712, is Eria stellata, 

 Rchb. 



D: pumilum l^oxl). Hort. Bong. 01. Hook. fil. in Fl. Brit. Ind. 

 " Perak (Scortecliini)'' is D. quadrain/ulare, Par. 



6. BrLBOPiivLLr:^, Thouars. 



Epij)hytes. with a creo])ing rhizome l)earing one Jointed pseudo- 

 bulbs. Jjcaf solitary on tlie ])seudobulb subterniinal coriaceous ol)lan- 

 ceolatc, linear or ovate. Flowers one to many in a lax or dense 

 raceme, short or long peduncled from the rhizome close to the 

 pseudobulb. Sepals similar lanceolate or lateral ones much longer. 

 Petals smaller. Lip usually fleshy, curved or fiat, tongue-shaped 

 small, movable on the end of the column foot. Column short, thick, 

 with a long curved foot to which the lateral sepals are adnate, arms 

 short or long erect or suberect entire usually acute, or two toothed. 

 Anther conic or depressed. Pollinia 2-4, ovoid or elliptic. The 

 second pair mucii smaller. A large genus of about 400 species com- 

 mon to the tropics of l)oth hemispheres. I include Cirrhopetalnin in 

 this genus, as it is quite impossible to keep it generically separate. 



§ 1. Sestochilus. Flowers large soli- 

 tary rarely 2 to 4 on long peduncles. Petals 

 much larger in proportion to the sepals than 

 in other groups. Sepals subequal. 



Flowers solitary rarely 2 on a peduncle. 



Lip flat narrow linear oldong . . 1. B. patens. 



Lip long narrow acuminate . . 2. B. nicgalanthuin. 



Lip hastate obtuse . . . . 3. B. pllcatum. 



Lip ovate acute curved. 



Lip very small •!• B. marranlhiini. 



Lip hu'ge pseudobulbs cylindric. 



Sepals acuminate .. .. 5. B. yalbinnm. 



Sepals acute 6. i?. variabile. 



Lip large pseudobulb ovoid . . T. B. Lohhu. 



Flowers hiiiall pscudoliiilb conic .. 8. B. puslitlalmu. 



Lip oldong recurved very thick. 



Flowers small hardly expanding . . i>. />. rugosum. 



