236 LEGUMINOSAE. 



length "t' the oblong tube; corolla yellowish white; pod obliquely oval, thin, 

 I 1 , to l'-j in. long, on b filiform pubescent stipe of almost equal length. 



Low dry hills: inner Ninth Coast Range to the Livermore Pass and westward 

 to Miles Caflon. 



c A. oxyphysus Gray. Habit of the preceding; growing parts canescent, 

 becoming green but not glabrous; leaflets 9 to 21, oblong, 1% in. long or less, 

 the lower as much as 5 lines wide; peduncle much exceeding the leaves, bear- 

 ing an elongated densely flowered raceme; corolla greenish white, 8 lines long; 

 pod l'-j in. long, clavate-obovate, oblique, acuminate at apex, strongly con- 

 tracted at base into the recurved stipe which exceeds the calyx. 



Dry hills in the Mt. Hamilton Range at Arroyo del Puerto. 



7. A. crotalariae (Benth.) Gray. Glabrous, except the pubescent grow- 

 ing parts; stems stout, decumbent; leaflets 21 to 35, linear-oblong to broadly 

 obovate, retuse or obtuse, thickish. 5 to 12 lines long; stipules triangnlar- 

 subulate, distinct; racemes 4 to 10 in. long; calyx-teeth broadly subulate, one- 

 half as long as the short-campanulate tube; corolla whrte, 6 lines long; pod 

 almost papery, much inflated, ovoid, 1 to iy> in. in length. 



San Francisco to Southern California. May. 



8. A. menziesii Gray. Plant stout, erect, 2 to 4 ft. high; young herbage 

 whitish pubescent, soon green, but hirsute-pubescent; leaflets 21 to 43, com- 

 monly crowded on the rachis, broadly oblong, less frequently cuneate-obovate 

 or narrowly ovate, usually retuse at apex, 5 to 8 lines long; stipules broad, 

 ii« «1 pointed, all bul the uppermost continued around the stem and nearly meet- 

 ing 01 even united on the side opposite the leaf; corolla 4 to 6 lines long, 

 yellowish white or greenish, the keel purple-tipped; raceme short and dense 

 ( 1 ' L . in. lung), or longer and loose; peduncles 3 to 6 in. long; pod thin-walled, 

 1 to l! in. long, otherwise similar to the preceding. 



Sandy soils near the const: San Francisco and Alameda to .Monterey and 



southward. June-Aug. 



9. A. douglasii (T. & G.) Gray. Stems ascending, 1 ft. high; herbage 

 cinereous when young, almost glabrous in age; leaflets numerous, linear to 

 oblong, 1 to 9 lines long; stipules mostly subulate; peduncle shorter than the 

 leaves, bearing a dense LO to 20-flowered raceme; calyx-teeth subulate, shorter 

 than the eampanulate tube; corolla scarcely twice the length of the calyx. 

 I lines long, yellow or creamish; pod thin-walled, obliquely ovoid, 1% to 2 

 in. long. 



Gravelly stream-beds: San Benito River and southward in the Coast 

 Ranges. 



10. A. pycnostachys day. Stems stout ish, 1 to 3 ft. high; herbage 

 more or less villous hoary ; leaflets numerous (about 18 or 19 pairs), linear to 

 oblong; flowers whitish or the wings faint yellow, I to 5 lines long, numerous 

 in a dense oblong or cylindrical spike like raceme l 1 ^ to 2 in. long; peduncle 



Blightly exceeding raceme; pods crowded, retrorsely imbricated, ovate, nar- 

 rowed at apex into the persistent and prominent style, somewhat flattened 



laterally and margined by the prominent BUtures, 1 celled, the wall thin and 



reticulated; body of pod 3 or 1 lines long; seeds 1 to 3. 



Sail marshes 01 about springy places in canons opening to the sea: Pt. 

 BOUth to San Mateo Co. (Tunitas Creek. ./,,.*,>„.) .luno-.July. 



11. A. clevelandii Greene. Stems slender, erect, 2 to 3 ft. high; herbage 

 yellowish green and nearly glabrous; Leaflets 15 to 21, ."» to 7 lines long, nar- 

 rowly oblong, broad. 'st below the middle; peduncles very long, much exceeding 



