340 PAPILIONACEAE. [Vor II. 
1. Vigna Sinénsis (L.) Endl. Cow Pea. China Bean. Black-eyed Bean. 
(Fig. 2238.) 
Dolichos Sinensis Y,. Cent. Pl. 2: 28. 1756. 
Dolichos Catjang 1,. Mant. 1: 269. 1767. 
Vigna Catjang Walp. Linnaea, 13: 533. 1839. 
Vigna Sinensis Endl.; Hassk. Pl. Jav. Rar. 386. 1848. 
Annual, glabrous, or somewhat pubescent; stem 
twining or trailing, striate. Stipules ovate or ovate- 
lanceolate, acuminate, prolonged backward, 3//- 
10’’ long; petioles stout, often as long as the leaf- 
lets or longer; terminal leaflet rhombic-ovate, 
acute or blunt, 2’-6’ long, often about as wide, 
long-stalked; lateral leaflets very obliquely ovate 
and inequilateral, about as large as the terminal 
one, short-stalked; flowers few near the knotty ends 
of the long peduncles, yellowish, 8’/-10’’ long; 
pod fleshy, 4’-7’ long, 3’/-4’’ thick, nearly straight; 
seeds with a dark circle around the scar of attach- 
ment. 
Escaped from cultivation, Missouri to Texas and 
Georgia. Native of Asia, and called Chowley, Tow- 
cok. Seeds edible. July—Sept. 
Family 50. GERANIACEAE J. St. Hil. Expos. Fam. 2:51. 1805. 
GERANIUM FAMILY. 
Herbs with alternate or opposite leaves, and axillary solitary or clustered 
perfect regular flowers. Stipules commonly present. Sepals 5 (rarely fewer), 
mostly persistent. Petals of the same number, hypogynous. Stamens as many 
as the sepals, or 2-3 times as many, distinct; anthers 2-celled, versatile. Ovary 
1, usually 5-lobed and 5-celled; ovules 1 or 2 in each cavity. Fruit capsular. 
Embryo straight or curved; cotyledons flat or plicate. 
About Io genera and 450 species, natives of temperate regions, most abundant in South Africa. 
Anthers 10, rarely 5; carpel-tails not hairy inside. 1. Geranium. 
Anthers 5; carpel-tails bearded inside. 2. Erodium. 
1. GERANIUM L. SP El G76ler753- 
Herbs with stipulate palmately lobed, cleft or divided leaves, and axillary 1-2-flowered 
peduncles. Flowers regular, 5-merous. Sepals 5, imbricated. Petals 5, hypogynous, 
imbricated. Stamens Io (rarely 5), generally 5 longer and 5 shorter. Ovary 5-lobed, 5- © 
celled, beaked with the compound style. Ovules 2 in each cavity. Capsule elastically 
dehiscent, the 5 cavities 1-seeded and long-tailed by the persistent style-divisions which are 
naked on the inner side. [Greek, a crane, from the long beak of the fruit. ] 
About 170 species, widely distributed in temperate regions. Besides the following, some 6 
others occur in western North America. 
Perennial; flowers 1’ broad or more. 1. G. maculalum. 
Annuals or biennials; flowers 2'’-6'’ broad. 
Leaves 3-divided; segments pinnatifid, thin. 2. G. Robertianum., 
Leaves pedately lobed or dissected. 
Peduncles 1-flowered. : 3. G. Sibiricum. 
Peduncles 2-flowered. 
Peduncles longer than the leaves; carpels smooth and glabrous. 4. G. columbinum. 
Peduncles short; carpels rugose or hairy. 
Seeds reticulated or pitted. 
Glandular-pubescent with long white hairs. 5. G. rolundifolium. 
Pubescent with short hairs; leaves deeply lobed. 
Flowers pale purple; seeds minutely reticulated. 
Beak short-pointed; inflorescence compact. 6. G. Carolinianum., 
Beak long-pointed; inflorescence loose. 7. G. Bicknellit. 
Flowers deep purple; seeds deeply pitted. 8. G. dissectum, 
Seeds smooth or nearly so. 
Stamens 5; carpels hairy, not rugose. 
Stamens 10; carpels glabrate, rugose. 
7. pusillum, 
G. molle. 
50 
im 
¢ 
