158 LEGUMINOS &%. LATHYRUS. 
linear-oblong, 1-2 inches long. Edges of copses, Western Washington to 
California. : 
L. pauciflorus Fernald Bot. Gaz. xix, 335. Glabrous throughout: 
stems rather slender, 2-3 feet high: stipules semisagittate, acuminate, 
8-12 lines long, coarsely toothed below; leaflets 4-5 pairs, oblong, 6-18 
lines long, 4-6 lines broad, acutish, spinulose apiculate, nearly sessile: 
peduncles about equalling the leaves, 2-5 flowered; corolla 6-8 lines long; 
upper teeth of the calyx triangular, acuminate, nearly as long as the sub- 
ulate lateral ones, the lower one setaceous and nearly as long as the keel 
o = corol'a: fruit not seen. In copses, southern Oregon to Utah and 
aho. 
+ + Stipules narrow, semisagittate, the lubes usually lanceolate, — 
acuminate: flowers purple or purplish. . 
++ Leaflets 4-6 pairs: peduncles rather many-flowered. 
L. Bolanderi Watson Proc. Am. Acad. xx, 363. Stems usually stout 
and tall, wingless: glabrous throughout or the calyx only ciliate; stipules 
semisagittate, otten toothed: leaflets 3-5 pairs, oblong-lanceolate to broad- 
ly ovate, obtuse or retuse to acute, 6-18 lines long or more: racemes about 
equalling the leaves, 8-10 flowered ; calyx-teeth broad, the lowest elongated ; 
petals purple, 6-9 lines long: pods linear, attenuate to the base, 2-2% 
inches long, 3-4 lines broad. Oregon and California. 
L. lanceolatus. Stems rather slender, 1-2 feet high, not winged, a 
bescent with small soft hairs intermixed with minute dark-colored glands; 
leaflets 4-5 pairs, lanceolate, acute, 6-12 lines long, pubescent beneath, 
smooth above; stipules small, semisagittate, acuminate, 6-8 lines long, 2-3 
lines broad: peduncles about equalling the leaves, 3-6 flowered; flowers 
blue or violet, 8-10 lines long; calyx dark purple, pubescent, the tube 3-4 
lines long, the lateral teeth triangular, 2 lines long, the lower one seta- 
ceous, but little longer; ovary glabrous, 10-16 ovuled: fruit not seen. In 
forests at Glendale, southern Oregon. 
L. Nuttallii Watson |. c. xxi. 450. More or less pubescent throughout 
with loose wooly hairs; stems rather stout, 1-2 feet high: stipules narrow, 
semisagittate: leaflets 3-6 pairs, variable, narrowly to broadly elliptical, 
usually acute or acutish at both ends, apiculate, 1-2 inches long: pe- 
duncles shorter than or equalling the leaves, calyx light purple, 3-4 lines 
long, the 4 upper teeth triangular, acuminate, the lower one subulate, but 
little longer than the lateral ones; petals reddish purple, 6-8 lines long: 
pods glabrous, oblong, attenuate to a very short thick stipe, 1-!4¢ inches 
ane by 4 lines broad; seeds globose, brown. In copses, Brit. Columbia to 
alifornia. 
L. vestitus Nutt. T. & G. Fl. i, 276. Stems erect and rigid or a little 
climbing. silky-canescent, 1 foot or more high: leaflets 5-7 pairs, small, 
elliptical or oval, cuspidate, 6-7 lines long by 2-3 broad, silky pubescent 
beneath, smooth above; stipules broadly semisagittate, acuminate, slight- 
ly toothed below, about the size of the leaflets: peduncles about the 
length of the leaves, 4-6-flowered; flowers large, purple: calyx attenuate. 
at base, the lower segment narrowly lanceolate, acuminate, rather longer 
than the tube: pods flat, pubescent, attenuate at each end. Plains of the 
Oregon toward the sea. Nuttall, not since reported. 
++ + Leaflets 4-8; peduncles 2-6-flowered. 
L. coriaceus White Bull. Torr. Club, xxi. 452. Glabrous or minutely 
papillose throughout: stems erect, 6-18 inches high, rather stout, flexuous, 
quadrangular or terete, wingless, scarcely -striate: stipules semisagittate, 
lanceolate, acuminate, 4-12 lines long; teaflets 3-6 pairs, sub-opposite, 
thick and coriaceous, strongly yenulose on both sides, elliptical to linear- 
lanceolate, obtuse or acute, 144-3 inches long by 2-8 lines broad: pedun+ 
