ae ia 
262 A FLORA OF MANILA 
In open grassy places opposite Guadalupe, fl. most of the year; widely 
distributed in the Philippines, undoubtedly introduced. A native of tropical 
_ Asia, now found in most warm countries, wild or cultivated. 
*7. P. RADIATUS L. Mungos (Tag.); Green Gram. 
An erect or climbing annual herb, branched from the base, or more or 
less clothed with spreading, brownish hairs. Leaflets ovate, entire, acu- 
minate, 8 to 15 cm long, the lateral ones inequilateral. Flowers about 1 
cm long, yellow, racemosely arranged near the ends of the short peduncles, 
the pedicels very short. Pods linear, spreading, 6 to 8 cm long, about 6 
mm wide, hirsute with scattered, long, brownish hairs. Seeds 4 to 6 mm 
long. 
Rarely cultivated in our area, fi. Nov.Jan., and probably in other 
months; extensively cultivated in many parts of the Philippines, but scarce- 
ly spontaneous. A native of the Old World, now cultivated in most warm 
countries. 
54. VIGNA Savi 
Twining or spreading herbaceous vines similar to the preceding genus, 
differing chiefly in having the keel not or but slightly curved and not 
twisted. Calyx campanulate, the teeth long or short, the upper 2 often 
connate. Corolla much-exserted; keel truncate or with an ascending or 
slightly recurved beak. Stamens diadelphous. Ovary many-ovuled; style 
bearded along one side below the stigma. Pods linear. (In honor of D. 
Vigna, an early Italian botanist.) 
Species 40 to 50, chiefly tropical, 4 in the Philippines. 
1. Pods glabrous; keel not produced into a beak. 
2. Pods very long, up to 60 cm in length; cultivated. 1. V. sesquipedalis 
2. Pods less than 7 cm long; a littoral species with yellow flowers. 
2. V. luteola 
1. Pods densely pilose; keel prolonged into a beak... 3. V. pilosa 
*1. V. SESQUIPEDALIS L. Sitao (Tag.). : 
An annual, scandent, herbaceous, nearly glabrous vine, the stipules about 
i em long, attached above the middle: Leaflets ovate-rhomboid, acute, 
entire or nearly so, 6 to 15 cm long, the nerves often purplish. Racemes 
few, axillary, long-peduncled. Flowers 3 to 6, crowded at the ends of the 
peduncles. Calyx greenish, 1 cm long, the teeth lanceolate, long-acuminate. 
Corolla pale-purplish, usually about 2 em long. Pods slender, usually 
purplish, less than 1 cm wide, 20 to 40 cm long, many-seeded. (Fl. Filip. 
pl. 286, 285, V. sinensis.) 
Commonly cultivated for its edible pods and beans, fi. all the year; 
widely cultivated in the Philippines, but scarcely spontaneous, probably a 
native of China. Cultivated in most warm and tropical countries. 
2. V. lutea (Sw.) A. Gray. 
A prostrate or climbing herbaceous annual vine, glabrous throughout. 
Leaves 3-foliolate, their petioles 5 to 10 cm long. Leafiets broadly ovate 
to oblong-ovate, or suborbicular-ovate, shining, acute or rounded, 5 to 10 cm 
long, stipellate. Scapes axillary, erect, 10 to 20 cm long, bearing numer- 
ous, racemosely arranged flowers at the apex, but 2 or 3 flowers opening 
at one time. Flowers yellow, 1.5 cm long, the standard suborbicular, 
retuse, 1.8 cm wide. Pods subcylindric, 4 to 5 cm long, 6 to 7 mm wide, 
reflexed, each containing from 8 to 6 ellipsoid seeds 5 to 6 mm long. 
