160 LEGUMINOSJE. LATHYRDS. 



AJIYGDALACBJC. 



apex, short-stipitate, brown, l/i>-2 inches long, ^ as broad, 4-6-seeded; 

 seeds brown, orbicular. In the mountains of eastern Washington and 

 Oregon . 



IT. bijugatns White l.-c. 457. Stems slender, wingless, round or quad- 

 rangular, slightly flexuous, erect or slightly decumbent, 1-2 inches high, 

 glabrous throughout: stipules minute, linear-subulate, semisagittate; leaf- 

 lets 2 pairs, sometimes only I pair, elliptical to obovate, obtuse, thin, 

 paler green beneath, 1-2 inches long, 1-5 l-3as.oroad : peduncles about as 

 long as the rachis of the leaves, 2-flowered; flowers purplish, about 2 lines 

 long, calyx-teeth very short, triangular, subequal, much shorter than the 

 tube: pods brown, compressed, about 6-seeded. Northern Idaho and ad- 

 jacent Washington. 



L. Sandbergi, L. bijugaius Sandbergi White 1. c. Glabrous through- 

 out: stems very slender, flexuous, 2-3 inches high, wingless: stipules se- 

 taceous, 2-4 lines long, semisagittate, the lower lobe minute; leaflets 1 or 

 2 pairs, linear to linear-lanceolate or -spatulate, 2-3)^ inches long by %-l 

 line broad: peduncles filiform, an inch long, 2-3 times longer than the 

 rachis of the subtending leaf, 2-flowered; calyx attenuate at base, the 

 triangular teeth much shorter than the tube: fruit not seen. Northern 

 Idaho. 



L, Torreyl Gray Proc. Am. Acad. vii. 337. Minutely villous through- 

 out: stems very slender, 6-18 inches high, from slender creeping root- 

 stocks, branching: stipules lanceolate, acuminate, 4-6 lines long by 1-2 

 broad, semisagittate, the lower lobe small; leaflets thin, 4-6 pairs, ovate to 

 oblong or lanceolate; 3-6 lines long by 2-6 broad : peduncles filiform, 6-12 

 lines long, much shorter than the leaves, 1-flowered, rarely 2-flowered; 

 calyx campanulate, the two upper teeth triangular, acuminate, about as 

 long as the tube, about half as long as the subulate lower ones ; upper 

 petal purple, the others yellowish -white; pods linear-oblong, pubescent, 

 3-5-seeded. In open forests, Washington to California west of the Cascade 

 Mountains. 



* * Rachis of the leaves not tendril-bearing: pod broad, shortly 

 stipitate. 



L. littoralis Endl. in Walp. Hep. i, 722. Densely silky-villous through- 

 out : stems numerous, from creeping perennial rootstocks, stout )-2 feet 

 high, decumbent toassurgent, diffusely branched : stipules ovate to oblong 

 or lanceolate, 6-12 lines long; leaflets 1-5 pairs with a small linear termi- 

 nal one, cuneate-oblong, 4-12 lines long : peduncles stout, much longer 

 than the leaves, 4-10-flowered ; calyx truncate at base, the triangular-sub- 

 ulate teeth nearly equal, longer than the tube ; upper petal bright purple, 

 6-8 lines long, exceeding the paler wings and keel ; style flattened for most 

 of its length : pods 10-18 lines long by 6-8 broad, nearly semicircular in , 

 outline, villous, 3-5-seeded; seeds nearly 3 lines broad. On sand-hills and 

 -banks along the coast. Washington to California. 



ORDER XXVII. AMYGDALACE^E Reichb. "Consp. 177. 



Shrubs or trees with alternate simple leaves, small caducous 

 stipules and usually perfect, regular flowers. Calyx tubular or 

 campanulate, free from the ovary, the tube lined with a disk, 

 deciduous, the limb 5-lobed, imbricate in the bud. Petals 5, 

 perigynous. Stamens about 20, inserted into the disk of the 

 calyx-tube. Pistil 1, rarely 5; style simple. Ovary 1-celled, 

 usually with two collateral ovules, becoming a mostly 1-seeded 

 drupe. Seed pendulous, without albumen. Cotyledons large, 

 thick, fleshy, containing hydrocyanic acid. 



