PAPILIONACEAE. {Vor. II. 
1. Lathyrus maritimus (L.) Bigel. Beach 
Pea. Sea or Seaside Pea. (Fig. 2215.) 
Pisum maritimum I, Sp. Pl. 727. 1753. 
Lathyrus maritimus Bigel. Fl. Bost. Ed. 2, 268. 1824. 
Perennial, glabrous or nearly so, stout, somewhat fleshy, 
slightly glaucous; stems angled, decumbent, 1°-2° long. 
Stipules large and foliaceous, ovate, half-hastate, acute, 
1/-2/ long; leaves nearly sessile; leaflets 3-6 pairs, oblong, 
oval or obovate, obtusish and mucronulate at the apex, 
mainly narrowed at the base, somewhat larger than the 
stipules; tendrils branched; peduncles shorter than the 
leaves; flowers 6-I0, 9’/-12’’ long, purple; calyx-teeth 
often ciliate; pod sessile, linear-oblong, nearly glabrous, 
veined, 114/-3/ long, 4/’-5’’ wide. 
Sea-beaches, New Jersey to arctic America, shores of the 
Great Lakes, and on the Pacific coast. Also in northern Eu- 
rope and Asia. May-Aug. Sometimes blooming again late 
inautumn. Also called Sea-side Everlasting Pea. 
2. Lathyrus venosus Muhl. Veiny Pea. 
(Fig. 2216.) 
Lathyrus venosus Muhl.; Willd. Sp. Pl. 3: 1092. 1803. 
Finely pubescent or glabrous, perennial, ascend- 
ing, climbing or decumbent, 2°-3° long. Stems 
strongly 4-angled; stipules lanceolate, half-sagittate, 
acute or acuminate, 4/’-12’’ long; leaves petioled; 
leaflets 4-7 pairs, ovate or oval, obtuse or acute 
and mucronulate at the apex, mostly rounded at 
the base, 1/-2’ long; tendrils branched; peduncles 
shorter than the leaves; flowers purple, 6’’-8’ long; 
calyx pubescent or glabrous; pod linear, sessile, 
glabrous, veined, 114/-3/ long, about 3’” wide. 
River shores and banks, western New Jersey and Penn- 
sylvania to Indiana and Assiniboia, south to Georgia, 
Louisiana and Kansas. Ascends to 3500feet in Virginia. 
Leaflets often strongly reticulated. May-July. 
3. Lathyrus palustris [. Marsh Vetchling. 
(Fig. 2217.) 
Lathyrus palustris I. Sp. Pl. 733. 1753+ 
Perennial, glabrous or sparingly pubescent; stems 
angled and winged, slender, 1°-3° long; stipules half- 
sagittate, lanceolate, linear, or ovate-lanceolate, 5’’-10’’ 
long, 114//-24%4’’ wide; leaflets 2-4 pairs, lanceolate, ob- 
long, or linear-oblong, acute or obtusishand mucronate at 
the apex, narrowed or rounded at the base, 1/-234’ long, 
2//-5/’ wide; tendrils branched; peduncles generally about 
equalling the leaves, 2-6-flowered; flowers purple, 5’/—7’’ 
long; pod linear, sessile, slightly pubescent, or glabrous, 
1%4/-214’ long, about 3/’ wide. 
In moist or wet grounds, Labrador to Alaska, Massachusetts, 
New York and British Columbia. Also in Europe and Asia. 
May-Aug. 
