LEGUMINOSAE 263 
In thickets along the seashore and on sandy beaches, Pasay, Malabon, 
ete., fl. Aug.—May; in littoral districts throughout the Philippines. Tropics 
of the world. 
3. V. pilosa (Roxb.) Baker. 
A slender, twining, herbaceous, more or less pubescent, annual vine 
reaching a height of 2 to3 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. PACHYRRHIZUS Richard 
Herbaceous twining vines from large, turnip-shaped, fleshy roots. Leaves 
8-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, 1 introduced in the 
Philippines. 
1. P. eERosus (L.) Urb. (P. angulatus Rich.). Sincamas (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. (FI. Filip. pl. 249.) 
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 oblong. 
(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. lablab 
Flowers few, about 1 cm long; pods small, less than 1 cm wide. 
2. D. faleatus 
