ICO LEGUMINOS^E. lathyrds. 



AMYGDALACEJE. 



apex, short-stipitate, brown, lj^-2 inches long, ^ as broad, 4-6-seeded; 

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

 Oregon . 



it. bijugatus White 1. 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 1 pair, elliptical to obovate, obtuse, thin, 

 paler green beneath, 1-2 inches long, 1-5 — 1-3 as 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. bijugatus 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 -spatuiate, 2-3}4 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. Torreyi 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 snorter 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 w r est of the Cascade 

 Mountains. 



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

 stipitate. 



L. littoralis Endl. in Walp. Rep. 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. AMYGDALACEiE 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. 



