TWO NEW ORCHIDS FROM THE PROVINCE 

 OF BANDON, S.W. SIAM. 



By H. N. RIDLEY, c.m.g., m.a., f.r.s., late Director of Gardens, 

 Straits Settlements. 



[The two new species described below were obtained on the 

 mountain Kao Nawng in the province of Bandon, which is 

 referred to antea p. 84. Owing to the unfavourable weather and 

 the press of other work, botanical collecting was not attempted on 

 this mountain but in addition to the two novelties the following- 

 species were also obtained. — H.C.R.] 



OLEACE^. 



1. JASMINUM LONGIPOLIUM, King. 

 Kao Nawng, 3,500 feet. Bistrih. — Malay Peninsula. 



GESNERACE^. 



2. DIDYMOCARPUS FLAVA, Rii>ley. 



Kao Nawng, Bandon, 1,500 feet. No. 5788. i)iVf.'-/6.— Malay 



Peninsula. 



ORCHIDE^. 



3. DENDROBIUM PARCIFLORUM, Rcnu. fil. 

 Kao Naw^ang, Bandon, 1,500 feet. Distrib. — Burma. 



Flowers white, with a faint yellow spot on lip. On trees. 



Probably also D. curviflorum, Rolfe, but not Hooker's 

 D. Jcentrochilum which Kranzlin refers to this species, the flowers of 

 the latter being twice as large. 



4. BULBOPHYLLUM LOBBII, Linbley. 



Kao Nawang, Bandon, 1,500 feet. Exceedingly common in large 

 masses round our camp at this elevation. 



Not the variety or species Siamense but the true Javanese form. 

 Distrib. — 



5. C(ELOGYNE TRICARINATA, sp. nov- 



Rhizome woody branching, covered with stiff sheaths ovate 

 polished, 4 mm. in diameter. Pseudobulbs elongate conic, 4 angled 7 cm. 

 Leaves thinly coriacious lanceolate acuminate acute narrowed to the 

 base 20-21 cm. long, 3.5 cm. wide, midrib prominent and 4 nerves 

 conspicuous, petiole distinct 4 mm. long. Scape from the top of the 

 pseudobulb slender, basal portion 15 cm. nude. Bracteate portion 

 4 cm. long, bracts distichous lanceolate obtuse to subacute. Raceme 

 slender flexuous 12-17 cm. long, internodes 2 cm. long. Predicels 

 7 mm. long. Sepals lanceolate acute 12 mm. long. Petals very 

 narrow linear. Lip distinctly 3-lobed, 11 mm. long, side lobes 

 large rounded at tip, midiobe much larger 6 mm. long, 5 mm. wide, 



