Corybas merrillii (Ames) Ames

Tuber: about 5 mm. in diameter, roundish.  

Stem: up to 5 cm. high  

Leaf: cordate-ovate, shortly acuminate, both sides glabrous, texture membranous, 7-21 mm. long.  

Bract: exceeding the ovary, lance-acuminate, 7-10 mm. long.  

Flower: up to 1.5 cm. from the base of perianth to the tip of the upper sepal. 

Dorsal sepal: cucullate or galeate, elliptic, obtuse, 

Lateral sepals: filiform, about 23 mm. long, erect (?). 

Lateral petals: filiform, about 23 mm. long, erect (?). 

Labellum: enveloping the column, with margins coherent near base, tubular, dilated into a broad limb strongly recurved at the apex and abruptly apiculate, the margin entire.  

Spurs: 2, short, saccate, horn-like  

Column: short, 2-winged near the summit.  

Type: Mt. Mariveles, Prov. Bataan, Luzon, August 8, 1904, E. D. Merrill (no. 3871) 

Distribution: Mt. Mariveles, Prov. Bataan, Luzon 

Ecology: On mossy shaded cliffs