LEGUMINOSAE 263 



In. thickets along the seashore and on sandy beaches, Pasay, Malabon, 

 etc., fl. Aug.-May; in littoral districts throughout the Philippirtes. Tropics 

 of the world. 



3. V. pilosa (Roxb.) Baker. 



A slender, twining, herbaceous, more or less pubescent, annual vine 

 reaching a height of 2 to 3 m. Leaflets ovate to> lanceolate, 4 to 9 cm long, 

 entire, acute, base rounded. Racemes short, few-flowered. Corolla pur- 

 plish, nearly 1.5 cm long. Pod 5 to 7 cm long, about 7 mm wide, slightly 

 curved, beaked, swollen, densely covered with spreading or appressed, per- 

 sistent brown hairs. 



In dry thickets, Caloocan to San Pedro Macati, fl. Nov.-March; of very 

 local occurrence in the Philippines. India. 



55. PACHYRRHI2US Richard 



Herbaceous twining vines from large, turnip-shaped, fleshy roots. Leaves 

 3-foliolate, the leaflets stipellate, lobed or sinuate. Racemes axillary, long, 

 bearing the flowers in fascicles at the thickened nodes. Calyx 2-lipped, the 

 tube about as long as the lips, the upper lip notched, the lower "one 3-toothed. 

 Corolla exserted, the petals subequal; keel obtuse. Stamens diadelphous. 

 Ovary many-ovuled; style bearded down the inner side below the oblique 

 stigma. Pod linear, somewhat swollen, depressed between the seeds. 

 (Greek "thick" and "root") • ' 



Species 2 or 3 in Mexico and in tropical Africa, i introduced in the 

 Philippines. 



1. P. EEOSUS (L.) Urb. (P. angulatua Rich.). Siricamas (Sp.-Fil.). 



A rather coarse, scandent, herbaceous vine, somewhat pubescent, from 

 rather large, edible, turnip-shaped, fleshy roots. Leaflets, at least the 

 terminal one, broader than long, up to 15 cm long and 20 cm wide, base 

 deltoid, irregularly and shallowly lobed in the upper half, the lateral ones 

 inequilateral. Racemes up to 45 cm in length, the lower nodes produced 

 into short branches, each node with several flowers. Flowers pale-blue or 

 blue and white, 2 to 2.5 cm long, the standard about 1.5 cm wide. Pods 

 about 10 cm long, 10 to 12 mm wide, flat, pubescent, containing 8 to 10 

 seeds. (Fl. Filip. pi. U9.) 



Common in thickets, fl. Sept.-Jan., also cultivated; throughout the Philip- 

 pines, thoroughly naturalized. A native of tropical America,^ now widely 

 distributed in the tropics. 



56. DOLICHOS Linnaeus 



Twining herbs with 3-foliolate leaves, the leaflets stipellate. Flowers 

 axillary, solitary or in racemes. Calyx-tube campanulate, the teeth long 

 or short. Corolla exserted, the petals equal or subequal in length, the keel 

 obtuse or beaked. Stamens diadelphous. Ovary many-ovuled; style bearded 

 down the inner side or around the stigma. Pod flat, linear to oblorfg. 

 (Greek "long" from extended growth of some -species.) 



Species about 20 in the tropics of both hemispheres, 3 in the Philippines. 



Flowers many, about 2 cm long; pods large, about 2 cm wide.... 1. D. Idblab 

 Flowers few, about 1 cm long; pods small, less than 1 cm wide. 



2. D, faleatua 



