Phaseolus. XL VII. LEGUMINOSiE. 221 



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

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



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. abruptly/ pinnate, of many 

 leaflets and a terminal tendril. 



E. HiRSUTUM, 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. to S. 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. ^ 1 



4. P I S U M. 



Celtic pis, Lat. pisujn, 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. Lvs. 

 abruptly pinnate, ending with branching tendrils. 



P. SATIVUM. Common Garden Pea. — Lfts. ovate, entire, usually 4; stip. 

 ovate, semi-cordate at base, crenate ; ped. several-flowered. — (D One of the 

 most valuable of leguminous plants, smooth and glaucous. Stem 2 — 5f long, 

 nearly simple, climbing by tendrils. Leaflets 2 — 3' long, f 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. 

 Jn. X 



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 ; legume compressed and fal- 

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

 baceous, twining or trailing. Lvs. pinjiately trifoliate. Lfts.stipellate. 



1. P. DIVERSIFOLILS. PcrS, 



St. prostrate, diff'use, .scabrous with recurved hairs; lfts. angular, 2 — 3- 

 lobcd or entire; ped. longer than the leaf, few-flowered; lover tooth of the cal. 

 longer than the tube ; leg. pubescent, broadly linear, cylindric. — (T) A creeping 

 or climbing plant, 3 — 5f long, on sandy shores and prairies. Can, and IT. S. 

 Leaflets 1—2' long, | as wide, with scattered hairs beneath, often variously 

 and very obtu.sely lobed. Peduncles 2 — 8-flowered, 3 — 6' long. Corolla pur- 

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



2. P. HF.T.VMLUs, (and P. vexill.atiis. Linn.) 



67, slender, twining; //"/.s. between oblong-ovate and linear, entire; ped. 

 slender, several times longer than tlip leaves, t'ew-flowered; /^i,^ straight, cylin- 

 dric, 8— 10-seeded.— 7|. Sandy fields, N. Y. to Flor, and La, Stem 3— 5f long. 

 Leaflets 1—2' by \ — V. Peduncles 4- -8' long, 4 — 7-flowercd. Calyx with 2 

 bracts at ba.se. Corolla purplish, vexillum large, roundish. Legume 2 — 3' 

 long, very narrow, subfalcate. Aug. Sept, 



3. P. PKRKNMs, Walt. Wild Bean Vine. 



Twinintj, puhoscent; rac. jianicnlate, mostly in pairs, axillary; //''•"'■. 

 ovale, acuminate, 3-veined ; kg. pendulous, falcate, broad-mucronatc — "^l^ 

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

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



