NEW OR NOTEWORTHY ORCHIDS 
paiiciflorus. Bracteae racemi plus minusve rigidae, basi 
concavae, ovario longiores, nervosae, virides, persistentes. 
Ovarium pedicellatum plus minusve sulcatum. Sepala lat- 
eralia oblonga, usque ad apicem angustata, apice breviter 
carinata, basi cohaerentia, mentum breve obtusum for- 
mantia. Sepalum dorsale cymbiforme, sepalis laterali- 
bus multo angustius. Pelala triangulari-oblonga, usque ad 
apicem angustata, valde curvata. Labellum ventricoso- 
saccatum apice valde decurvatum. Columna generis. 
Terrestrial herb 30 cm. or more tall, simple or commonly 
branching above, with the branches 10-16 cm. or more long. 
Stems terete, hardly 2 mm. thick, erect, leafy. Leaves 4-8 
cm. long, 3-6 mm. wide, linear, grass-like, narrowed toward 
the ends, sessile on the tubular sheathing bases which conceal 
the stem. Racemes terminal from the axils of the upper¬ 
most leaves, with the abbreviated peduncle 1-1.5 cm. 
long, few-flowered, with the flowers crowded. Bracts of the 
raceme about 5 mm. long, rigid, persistent, triangular, 
concave, nervose. Ovary shortly pedicellate, about 4 mm. 
long, longitudinally sulcate. Lateral sepals 8 mm. long, 
2 mm. wide, oblong, narrowed to a shortly carinate tip, 
united at base, forming a distinct obtuse mentum which 
conceals the base of the labellum. Dorsal sepal 8 mm. long, 
cymbiform, arching forward over the column, acute. Petals 
7 mm. long, 2.5 mm. wide, triangular-falcate, acute, pro- 
LuberanL on the anterior margin at the base. Labellum in¬ 
cluding the strongly dellexed tip, 8 mm. long, ventricose- 
saccate, distinctly bilobed at the base, sulcate beneath 
where it is longitudinally thickened, with a prominent keel 
within near the base and with a distinct keel on each side 
above the middle; the dellexed apical portion is somewhat 
cucullate at the obtuse tip. Column about 4 mm. long. 
Tropidia Bobinsonii is distinguished from the closely 
allied T. gracilis Schitr. by its broad triangular floral bracts 
and large flowers. 
Philippines, Luzon, Tayabas Province, Siniloan Trail, 
C. 13. Robinson, Bureau of Science 9496, September 5, 1909. 
Mower white. (Type in Herb. Ames No. 26329.) 
17 
