Phaseolus. - XLVII. LEGUMINOSiE. 



white, with a large black spot on each of the alas. Legume torulose. Seeds 

 very large, with the large hilum at one end. (See Fig. 19, 1, 2.) f 



3. ERVUM. 



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.— ® Lvs. abrupUi/ pinnate, of many 

 leaflets and a terminal tendril. 



E. HiRsiiTUM. Hairy or Creeping Vetch. 



Lfts. linear, truncate, mucronate; slip, semi-sagittate, narrow; ped. 

 3 — 6-flowered, shorter than the lea\'es; leg. hirsute, 2-seeded. — A creeping weed 

 in cultivated fields, N. Y. to S. Car. Stem very slender, 1— 3f long. Leaflets 



8—20, 4 — 8" long, hardly 1" wide, broadest above. Peduncles axillary, 3 6- 



floM'ered. Calyx segments rather shorter than the bluish-white corolla. Le- 

 gumes short, with roundish, compressed brown seeds. Jn. $1 



4. PISUM. 



Celtic pis, Lat. pisum, Eng. pea, Fr. pois. 



Cnlyx 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 Lvs. 

 abruj)tly pinnate, ending with branching' tendrils. 

 — * — p. SATIVUM, Common Garden Pea. — Lfts. ovate, entire, usually 4p stip. 

 Wate, 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, § 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. 

 Ju. X 



5. PHASEOLUS. 

 Lat, phaselus, a little boat ; which the poils may be said to resemble. 



Calyx sub-bilabiate, upper lip 2-toothed, lower 3-toothed ; keel with 

 the stamens and style spirally twisted ; legume compressed and fal- 

 cate, or cylindric, many-seeded ; seeds compressed, reniform. — Her 

 baceous, twirmig or trailing. Lvs. pinnateli/ trifoliate. Lfts. stipellate. 



1. P. Di'vERsiFOLius. Pers. 



St. prostrate, diffuse, scabrous with recurved hairs; Jfts. angular, 2 — 3- 

 lobed or entire; ped. longer than the leaf, few-flowered; lovjer tooth of ike cal. 

 longer than the tube ; kg. 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 — G' long. Corolla pur- 

 plish. Legumes become black when ripe, 5 — 7-seeded. Aug. — Oct. 



2. P. i£elv6lus. (and P. vexillatus. Linn.) 



SI. slender, twining; fts. between oblong-ovate and linear, entire; ped. 

 slender, several times longer than the leaves, few-flowered; leg. straight, cylin- 

 dric, 8 — lO-seeded.— '^^ Sandy fields, N. Y. to Flor. and La. Stem 3— 5f long. 

 Leaflets 1 — 2' by i — 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, subfalcate. Aug. Sept. 



3. P. PERENNis. Walt. Wild Bean Vine. 



Twining, pubescent; rac. paniculate, mostly in pairs, axillary; lfts, 

 ovate, acuminate, 3-veined ; leg. pendulous, falcate, broad-mucronate. — 'Z|- A 

 slender, twining vine, in dry woods, Can. and U. S., common. Stem 4 — 7f 

 long, somewhat branching. Leaflets IJ— 3i' long, |— equal width; terminal 



