LEGUMINOSJS. (PULSE FAMILY.) 103 



and mucronate at the apex ; pod linear, several-seeded. Cultivated fields and 

 waste places ; both the common form and the var. ANOUSTiF6 LIA, with longer 

 and narrow leaflets. (Adv. from Eu.) 



* * Annual: peduncles elongated: flowers small. (Species of Ervum, L.) 



2. V. TETRASPERMA, L. Peduncles \-2-flowered; leaflets 4-6 pairs, 

 linear-oblong, obtuse ; calyx-teeth unequal ; pods narrowly oblong, 4-seeded, smooth. 



Waste or open places, near the coast. An insignificant plant, 6' -12' high, 

 with whitish flowers. (Nat. from Eu.) 



3. V. HiRSt'TA, Koch. Peduncles 3 - ^-flowered ; leaflets 6-8 pairs, trun- 

 cate ; calyx -teeth equal ; pods oblong, 2-seeded, hairy. (Ervum hirsutum, L.) 

 Massachusetts to Virginia. A slender straggling plant, with small purplish- 

 blue flowers. (Nat. from Eu.) 



# * * Perennial: peduncles elongated; calyx-teeth very unequal: pod several-seeded. 



4. V. Cracca, L. Downy-pubescent; leaflets 20-24, oblong-lanceolate, 

 strongly mucronate ; peduncles densely many-flowered ; calyx-teeth shorter than the 

 tube. Borders of thickets, New England to Kentucky and northward. July. 



Flowers blue, turning purple, ' long, one-sided in the spike, reflexed. (Eu.) 



5. V. Carol! iiiaiia, Walt. Nearly smooth; leaflets 8-12, oblong, ob- 

 tuse, scarcely mucronate; peduncles loosely flowered; calyx-teeth very short. 

 River-banks, &c. May. Flowers more scattered than in No. 4, whitish, the 

 keel tipped with blue. 



6. V. Americana, Muhl. Glabrous; leaflets 10- 14, elliptical or ovate- 

 oblong, very obtuse, many- veined ; peduncles 4 - S-Jloivered. Moist thickets, 

 New York to Kentucky and northward. June. Flowers purplish-blue, f 

 long. 



21. JLATHYRUS, L. VETCHLING. EVERLASTING PEA. 



Style flattish, not grooved above, hairy along the inner side (next the free sta- 

 men). Otherwise nearly as in Vicia. (Aatfvpor, a leguminous plant of Theo- 

 phrastus.) Our wild species are perennial and mostly smooth plants. 



1. L.. 121:11 it ilia us, Bigelow. (BEACH PEA.) Stem stout (1 high); 

 leaflets 4-8 pairs, crowded, oval or obovate; stipules broadly halberd-shaped, 

 nearly as large as the leaflets; peduncles 6- 10-flowered. Sea-coast, from New 

 Jersey northward, and shore of the Great Lakes. June -Aug. Flowers large, 

 purple. Leaflets very veiny, as also are those of the other species. (Eu.) 



2. Ij. venosilS, Muhl. Stem climbing (2 -5 high); leaflets 5 - 7 pairs, 

 scattered, oblong-ovate, often downy beneath ; stipules very small and usually slen- 

 der, half arrow-shaped; peduncles many -flowered ; corolla purple. Shady banks, 

 Michigan, Wisconsin, and southward. June. 



3. L,. cclirolciicus, Hook. Stem slender (1- 3 high); leaflets 3-4 

 pairs, ovate or oval, smooth, glaucous, thin ; stipules half heart-shaped, about half 

 as large as the leaflets; peduncles 7 -10-flowered; corolla yellowish-white. Hill- 

 sides, W. Vermont to Penn., and westward and northward. July. 



4. L,. palustris, L. (MARSH VETCHLING.) Stem slender (l-2 

 high), often wing-margined ; leaflets 2-4 pairs, lanceolate, linear, or narrowly 



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