86 LEGUMINOS^E. 



large as the leafets; peduncles 6 10-flowered, shorter than the leaves; 

 legume oblong, somewhat falcate. L. pisiformis Hook. Pisum maritimum 

 Linn. 



Sandy shores. Labrador to N. Y. W. to Oregon and California. Oneida 

 Lake and Long Island, N. Y. June, July. %. Plant pale green. Stem 12 

 feet long. Flowers large, purple and blue. Beach Pea. 



2. L. venosus Muhl. : stem square, naked ; leaves pinnate ; leafets 5 7 

 pairs, ovate-oblong, obtuse, subopposite, mucronate, smooth, veined ; stipules 

 small, semisagittate, ovate; peduncles many-flowered, shorter than the 

 leaves. 



Low meadows. Can. to Geor. W. to California. July, Aug. 1\.. Leafets 

 large. Flowers purple. Veiny-leaved Vetchling. 



3. L. palustris Linn. : stem smooth, winged, weak ; leafets in 3 pairs, 

 oblong, somewhat coriaceous, mucronate ; stipules semisagittate, acute ; 

 peduncles 3 5-flowered, a little longer than the leaves ; segments of the 

 calyx unequal, sublinear, as long as the tube ; legume compressed. 



Low grounds. Can. to Penn. W. to Oregon. June, July. T|. Stem 2 3 

 feet long, climbing. Leafets varying in width. Flowers pale purple. 



Marsh Vetchling. 



4. L. myrtifolius Muhl. : stem weak, flexuous, square ; leafets 2 3 pairs, 

 oblong-lanceolate, somewhat obtuse, mucronate, rigid, smooth, veined; 

 stipules semisagittate, lanceolate, acuminate, scabrous on the margin ; pe- 

 duncles 3 6-flowered, longer than the leaves. 



Salt marshes. N. Y. and Penn. July, Aug. 1\-. Resembles the former, 

 but usually has a more slender stem, and broader leafets and stipules. Flowers 

 smaller, purple, and rose-colored. Myrtle-leaved Vetchling. 



5. L. ochrokucus Hook. : plant smooth, pale, and somewhat glaucous ; 

 leafets in 3 4 pairs, ovate, obtuse, mucronate, reticulate beneath ; stipules 

 large, broad-ovate, acuminate ; peduncles 4 10-flowered, shorter than the 

 leaves; legume compressed, smooth. L. glaucifolius Beck Sot. 1st. Ed. 



Banks of streams. Arct. Amer. to N. Y. and N. J. May, June. 1J-. Stem 

 slender, 1 2 feet long, often nearly erect. Leafets one and a half to two inches 

 long, and an inch wide. Flowers large, pale yellow. When I introduced this 

 plant as a new species into the former edition of this work, I was not aware 

 that it had already been described under another name by Dr. Hooker. 



Cream-colored Vetchling. 

 22. AMPHIC^RP^EA. Ell. Hog-Nut. 



(From the Greek ap<f>t, both, and icap-nos, fruit ; producing fruit both above 

 and under ground.) 



Flowers of two kinds ; the one perfect and petaliferous, but 

 often sterile ; the other imperfect, but usually fertile. PERFECT 

 FL. Calyx tubular-campanulate, 4-toothed, without bracts at 

 the base. Standard incumbent and partly folded round the 

 other petals. Style smooth. Stigma small, capitate. Le- 

 gume linear-oblong, stipitate, compressed, 3 4-seeded. IM- 

 PERFECT FL. Corolla none or with the rudiment of a standard. 

 Stamens either wanting, or 5 10. Legume obovate, 1 2- 

 seeded, usually maturing below the surface of !!.< -'round. 



