104 LEOUMINOS.E. (PULSE FAMILY.) 



oblong, mucronate-pointed ; stipules small, lanceolate, half arrow-shaped, sharp- 

 pointed at both ends ; peduncles 3 - 5-flowercd ; corolla blue-purple. — Moist 

 places, N. England to Penn., Illiuois, and northward. July. (Eu.) 



Var. myrfifdSius. Taller, climbing 2 c -4° high; leaves oblong or 

 ovate-elliptical; upper stipules larger: corolla pale purple. (L. myrtifolius, 

 ftfuhl.) — W. New England to Penn., and northward. 



L. latif6lius (Everlasting Pea) and L. odorXtus (Swket Pea) 

 are commonly cultivated species. 



Pisum sativum, the Pea; FXba vulgXris, the Horse-Bean , and CIcek 

 arietinum, the Cuick-Pea, arc other cultivated representatives of the same 

 tribe. 



22. PHASEOL.US, L. Kidney Bean. 



Calyx 5-toothed or 5-cleft, the 2 upper teeth often higher united. Keel of the 

 corolla, with the included stamens and style, spirally coiled or twisted, or curved 

 into a ring. Stamens diadelphous. Pod linear or Bcytb.e~sb.aped, several - 

 many-seeded, tipped with the hardened base of the style. Cotyledons thick 

 and fleshy, rising out of the ground nearly unchanged in germination. — Twin- 

 ing or prostrate herns, with pinnately 3-foliolate stipellate leaves. Flowers 

 often clustered on the knotty joints of the raceme. (The ancient name of the 

 Kidney Bean.) 



# Pods scymetar-shaped : racemes long and loose, panicled. 



1. P. perc.mis, Walt. (Wild Bean.) Stem climbing high; leaflets 

 roundish-ovate, short-pointed ; pods drooping, strongly curved, 4-5-secded. 1J. 



— Copses, Connecticut to Illinois, and southward. Aug. — Flowers purple, 

 handsome, but small. 



* * Pods long and straight, linear, rather terete: flowers few in a short clustered ra- 



ceme like a head. (Strophostyles, Ell.) 



2. P. divei'sifolillS, Pers. Annual ; stem prostrate, spreading, rough- 

 hairy ; leaflets ovate-3-lobed, or angled towards the base, or some of them oblong- 

 ovate and entire ; peduncles at length twice the length of the leaves. — Sandy 

 fields and banks, Massachusetts to Illinois and southward. July, Aug. — Corol- 

 la greenish-white tinged with red or purple. Pod thickish. 



3. P. hclvolllS, L. Perennial, hairy; stems diffuse, slender; leaflets 

 ovate or oblong, entire or obscurely angled; peduncles 3-6 times the length of the lc«c.\ 



— Sandy fields, S. New York to Illinois and southward. Aug. — More slender 

 than the last: pods narrower: flowers as large and similar. 



* * Pods straight and linear, flat: peduncles 1 -few-flowered at tlte summit : flowers 



small : keel slightly twisted. 



4. P. paucifldrilS, Bcnth. Annual; stems diffuse, but twining, slen- 

 der, pubescent ; leaflets varying from oblong-lanceolate or ovate-oblong to linear. 

 (P. leiospcrmus, Torr. §- Gr.) — River-banks, Illinois (Mead) and sonthwest- 

 ward. July- Sept. — Flowers 3" long, purple. Pod 1' long, pubescent. 



P. vulgaris is the common Kidney Bean or Haricot. 

 P. lunXtus is the Lima Bean of our gardens. 



