PHaseouus. XLVII LEGUMINOSZ. 221 
white, with a large black spot on each of the ale. Legume torulose. Seeds 
very large, with the large hilum at one end. (See Fig. 19, 1, 2.) F 
3. ER VU M. 
Calyx deeply 5-cleft, the segments acute, linear, and nearly equal, 
about the length of the corolla; stigma capitate, smooth; style fili- 
form ; legume oblong, 2—4-seeded —® Lws. abruptly pinnate, of many 
leaflets and a terminal tendril. 
E. nirsttum. Hairy or Creeping Vetch. 
Lfts. linear, truncate, mucronate; stip. semi-sagittate, narrow; ped. 
3—6-flowered, shorter than the leaves; leg. hirsute, 2-seeded.—A creeping weed 
in cultivated fields, N. Y. toS. Car. Stem very slender, 1—3f long. Leaflets 
8—20, 4—8” long, hardly 1” wide, broadest above. Peduncles axillary, 3—6- 
flowered. Calyx segments rather shorter than the bluish-white corolla. Le- 
gumes short, with roundish, compressed brown seeds. Jn.(? 
4. PISUM. 
Celtic pis, Lat. piswm, Eng. pea, Fr. pois. 
Calyx segments leafy, the upper 2 shortest; vexillum large, re- 
flexed ; stamens 10, diadelphous (9 and 1); style compressed, cari- 
nate, villous on the upper side ; legume oblong, tumid, many-seeded ; 
seeds globose, with an orbicular hilum.—Herbaceous, climbing. Lws. 
abruptly pinnate, ending with branching tendrils. 
P. sativum. Common Garden Pea.—Lfts. ovate, entire, usually 4; step. 
ovate, semi-cordate at base, crenate; ped. several-flowered.—@ One of the 
most valuable of leguminous plants, smooth and glaucous. Stem 2—5f long, 
nearly simple, climbing by tendrils. Leaflets 2—3’ long, 3 as wide, obtuse, 
mucronate. Stipules rather larger than the leaflets. Flowers 2 or more, on ax- 
illary peduncles, large, white. This plant has been cultivated from time im- 
memorial, so that its native country is unknown. There are many varieties. 
dn. = 
5. PHASEOLUS. 
Lat. phaselus, a little boat ; which the pods may be said to resemble. 
Calyx sub-bilabiate, upper lip 2-toothed, lower 3-toothed ; keel with 
the stamens and style spirally twisted ; lezume compressed and fal- 
cate, or cylindric, many-secded; seeds compressed, reniform.— Her- 
baceous, twining or trailing. Lvs. pinnately trifoliate. Lfts. stupellate. 
1. P. piversirouivs. Pers. . 
St. prostrate, diffuse, scabrous with recurved hairs; Ufts. angular, 2—3- 
lobed or entire; ped. longer than the leaf, few-flowered; lower tooth of the cal. 
longer than the tube; leg. pubescent, broadly linear, cylindric—@ A creeping 
or climbing plant, 3—5f long, on sandy shores and prairies, Can. and U.S. 
Leaflets 1—2’ long, ? as wide, with scattered hairs beneath, often variously 
and very obtusely lobed. Peduncles 2—8-flowered, 3—6’ long. Corolla pur- 
plish. Legumes become black when ripe, 5—7-seeded. - Aug.—Oct. 
2. P. weLvouus. (and P. vexillatus. Linn. 
St. slender, twining; /fts. between oblong-ovate and linear, entire; ped. 
slender, several times longer than the leaves, few-flowered; leg. straight, cylin- 
dric, 8—10-seeded.— 2, Sandy fields, N. Y. to Flor. and La. Stem 3—5f long. 
Leaflets 1—2’ by 3—1’. Peduncles 4~-8’ long, 4—7-flowered. Calyx with 2 
bracts at base. Corolla purplish, vexillum large, roundish. Legume 2—3! 
long, very narrow, subfaleate. . Aug. Sept. 
3. P. PERENNIS. Walt. Wild Bean Vine. 
art Twining, pubescent; rac. paniculate, mostly in pairs, axillary; /fts. 
ovate, acuminate, 3-veined; Jeg. pendulous, falcate, broad-mucronate.—2 A 
slender, twining vine, in dry woods, Can. and U. 8., common. Stem 4—7f 
long, somewhat branching. Leaflets 14—32’ long, 3—equal width; termina' 
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