ORCHIDACE/E 123 



Linn. Soc. 24: 337 (1888). — ? Dienia carinata Reichb. f. 

 Bon pi. 3: 223 (1855). — ? Micro sty 'lis carinata Reichb. f. in 

 Walp. Ann. 6: 207 (1861) ; Naves Nov. App. 230; Vidal Phan. 

 Cum. Phil. 83, 148, Rev. PI. Vase. Fil. 266; Ridley Journ. 

 Linn. Soc. 24: 338 (1888). — Microstylis Wallichii var. biloba 

 Hooker f. Fl. Br. Ind. 5 : 686 (1888) ; Ann. Bot. Gard. Calc. 5 : 

 1, t. 2, f. D (1895) ; Grant Orch. Burm. 18; King & Pantling 

 Orch. Sik.-Him. 16, t. 19. 



"M. caule folioso, foliis oblongis acuminatis, racemo elongato 

 rarifloro, sepalis oblongis, petalis linearibus truncatis supremo 

 aequalibus, labello ovato apice bilobo : sinu aperto." — Lindley, 

 Orch. PI. 20. 



Plants foliose, varying in height from 12 to 30 cm. or more. 

 Ste?ns short, thickened, bearing from four to six lanceolate, acu- 

 minate, acute, nervose leaves, which are from 6 to 20 cm. long and 

 3-6 cm. wide. Peduncle with raceme up to 30 cm. long, conspicu- 

 ously bialate. Bracts linear, acute, the lowermost often 1 cm. long. 

 Flowers yellowish green, numerous, in a rather loose, elongated 

 raceme. Lateral sepals 4 mm. long, obtuse. Petals linear-oblong, 

 5.5 mm. long, 1 mm. wide. Labellum ovate, sagittate, abruptly 

 contracted into the bilobed, obtuse apex. 



The material on which my determination is based agrees with 

 the type of Microstylis biloba Lindl. In the Kew herbarium a 

 specimen collected in central Luzon by Loher (no. 442), which 

 agrees perfectly with my material, is labelled M. carinata Reichb. f. 

 Somebody, presumably Reichenbach, has written on Lindley's spe- 

 cimen of M. biloba, " Is the lip really bilobed? " Lindley's drawing 

 agrees almost perfectly with my specimen, and shows a distinctly 

 bilobed lip. From my studies of material which has been referred 

 to M. carinata, it would seem that the bilobed lip is a constant 

 character. 



Lamao River, Prov. Bataan, Luzon, July-August, 1904, Ahern's 

 collector (no. 1468). — Terrestrial in bamboo thicket, Maragon- 



