144 ORCHIDACEM 



one subtended by a foliaceous, lanceolate, acute, ± 5 mm. long 

 bract. Free portion of the lateral sepals triangular, acute, 3 mm. 

 long, 4 mm. wide, conspicuously 3-nerved when dry. Upper sepal 

 elliptic-ovate, obtuse, 3 mm. long. Petals cuneate-ovate, obtuse, 

 3 mm. long, about 2 mm. wide above the middle. Labellum subpan- 

 duriform, subobtuse, with a hippocrepiform callus near the base, 

 and with a prominent tubercle in the median line near the apex. 

 Column comparatively stout, rostellum bidentate, lateral arms 

 fleshy, acute. Pollinia elongated pyriform. 



On rotten log in forest, fls. greenish white, at 600 ft. alt., along 

 the Binabay River, Mindoro, December 5, 1906, E. D. Merrill 

 (no. 5843). — Same locality, on tree fern in humid forest, fls. 

 whitish, November 4, 1906, E. D. Merrill (no. 5541). 



Eastern India, Malay Peninsula, Singapore, Java, Borneo, China. 



P. MICRANTHUS (Lindl.) Schlechter Mem. Herb. Boiss. 21 : 

 36, 39 (1900). — Appendicula micrantha Lindley Ann. & Mag. 

 Nat. Hist. ser. 1, 15 : 386 (1845); Vidal Phan. Cum. Phil. 151 and 

 Rev. PL Vase. Fil. 272 ; Rolfe Journ. Bot. 23 : 216 (1885). 



" Foliis distichis ovato-oblongis obtusis, spicis axillaribus soli- 



tariis nutantibus folio brevioribus, bracteis subulatis reflexis, la- 



bello ovato acuto. Philippines (Cuming). This has the smallest 



flowers of any that I have examined. It is near Blume's App. re- 



fiexa, which is said to have an obtuse mucronate lip." — Lindley, I. c. 



Stems 10-45 cm. or more tall, 2-3 mm. thick. Leaves distich- 

 ous, elliptic oblong to elliptic, 2-3 cm. long, 8-12 mm. wide, 

 about 5 mm. apart, retuse-mucronate. Peduncles about 1.5 cm. 

 long. Sepals about 2.5 mm. long. 



Luzon, A. Loher (no. 6021). — Tufted epiphytes on mossy 

 trees, fls. white, very common above 750 m. elevation, Mt. Arayat, 

 Prov. Pampanga, Luzon, September 15, 1905, E. D. Merrill 

 (no. 4199). — Lamao River, Mt. Mariveles, Prov. Bataan, Luzon, 



