L E G U M I N O S M . 87 



* * Perennials; pods bladdery-inflated. 



5. A oxyphysus, Gray. Erect, 23 ft. high, stoutish, canescent 

 with a minute pubescence: leaflets 9 21, oblong, 1 in. long; peduncles 

 exceeding the leaves, raceme elongated: calyx -teeth subulate, half as 

 long as the oblong tube: corolla greenish -white, % in. long: pod com- 

 pressed, oblique (semiobovate), acuminate at both ends, 1% in- l n > on 

 a stipe little exceeding the calyx. Dry hills of the Mt. Diablo range. 



6. A. leuropliy 1 1 us, Torr. & Gray. Erect, tall, growing parts silvery - 

 canescent, when older glabrate : leaflets 2737, broadly linear, acutish, 

 % in. long: peduncles long, racemes short: calyx-teeth subulate, half as 

 long as the oblong tube; corolla yellowish: pod obliquely oval, 1^ in. 

 long, on a long filiform pubescent stipe. Low hills skirting the interior 

 valley; very common between Livermore and Niles. 



7. A. crotalariae (Benth.), Gray. Stout, decumbent, glabrous, except 

 the canescent growing parts: leaflets very many, oblong- linear to 

 obovate, sometimes retuse, % 1 in. long: stipules broadly triangular, 

 distinct: calyx-teeth subulate, half as long as the short-campanulate 

 tube: fl. white: pod thin, ovoid, 1 1% in. long, sessile in the calyx. 

 Plains and hills. 



8. A. Menziesii, Gray. Stout, erect, 24 ft. high, glabrous or nearly 

 so: stipules broad, not pointed, continued around the stem, sometimes 

 nearly meeting or even cohering opposite the base of the leaf: raceme 

 long and dense; fl. greenish: pod thin, large as in the last. Plentiful in 

 sandy soils along the seaboard, at Alameda, San Francisco, etc. 



9. A. macrodon (H. & A.), Gray. Erect, tall, glabrous in age, the 

 nascent parts canescent: leaflets 23 27, oblong-lanceolate, obtuse, 

 mucronulate : stipules small, lanceolate-acuminate: peduncles rather 

 shorter than the leaves; racemes long: calyx-teeth slender-subulate, 

 equalling the campanulate tube, and almost as long as the corolla: ovary 

 silky; pod unknown. This plant was collected by Douglas only, some 

 sixty years ago, somewhere between Monterey and Sonoma, probably 

 near the former place. It should be carefully sought, though it may 

 have become extinct. The long and slender calyx-teeth, according to 

 the original description, so distinguished it from its allies, as to make 

 its recognition easy in case it should be rediscovered. 



10. A. Donglasii (T. & G.), Gray. Ascending, 1 ft. high, cinereous- 

 puberulent when young, otherwise nearly glabrous: leaflets very many, 

 linear or linear-oblong, ^ M i n - long: spike short, dense, 1020 

 flowered: calyx-teeth subulate, shorter than the campanulate tube: pod 

 thin, obliquely ovoid, 1% 2 in. long. In gravelly places along streams, 

 from San Francisco southward. 



