|3g LEGUMINOS^. Hosuckia. 



17. H. cytisoides, Benth. Kesembling the last : calyx-teeth attenuate, mostly 

 recurved : peduncles eciualling or exceeiling the leaves, or soiuetiiues very short, 

 usually with a 1 - 3-lbliulute bract at the ti)p.— Trans. Linn. Soc. xvii. 3GG. 



From near San Francisco to Monterey und southward ; SuUnas Valley, Antisell. 



18. H. juncea, licnth. 1. c. Very m-arly glabrous, sonuuvhat sluiibby, erect: 

 leallets ubovate Lu oblong, 2 to 4 lines long : umbels on very short lUHluncles or 

 sessile : tlowers about 3 lines long : calyx 2 lines long or less ; teeth short and blunt. 



Alontercy to Sun r)i(>gi) {ihnujlas, NiUlall, Brewrr, Goodalc) ; Colorado Desert (Schott) ; and 

 rei»oileii also I'roni near San Francisco. 



+- +- Herbaceous and sparincjly pubescent: stems terete: leaflets usualli/ 5 to 7, and 

 less approxiiiuUe. 



19. H. prostrata, Nutt. Slightly appressed-silky : stems very slender, dilluse, 

 2 or 3 feet long : leallets cuncate-oblong to obovate, 2 or 3 lines long, acutish : um- 

 bels on slender peduncles, often a half to an inch long, naked or with a 1-3-foliolate 

 bract: flowers two or three lines long: style glabrous: calyx a line long ; its teeth 

 short, triangular, acute. — Torr. Sc (iray, VI i. 325. //. decumbens, var. (jlabriuscula. 

 Hook. & Am. Bot. Beeehey, 137. 



Santa Barbara and San Diego, near the sea, Nuttall, Palmer, &c. 



20. H. micrantha, Nutt. " Ditfusely procumbent from an apparently annual 

 root," very slender : leallets obovate-oblong, 1 \ to 3 lines long : umbels on very 

 short naked peduncles : Uowers very small (not two lines long) : style covenid with 

 short straight ascending hairs : calyx-teeth short, acute. — Torr. & Gray, Fl. i. 324. 



Monterey {Nultall) ; Catalina Island, Gambel probably. No good specimens of this apparently 

 good species have been collected. 



* « Very silky-pubescent or tomentose, herbaceous : stems terete : body of the pod less 

 elonr/ated, often scarcely lonyer than the calyx, pubescent, usually much curved : seed 

 often solitary, somewhat curved : leajlets 3 to 7, not approximate. 

 +■ Pubescence appressed. 



21. H. sericea, Benth. 1. c. Densely white-silky, mucli branched, ascending, a 

 foot or two high : leaflets usually 3, cuneate-oblong to linear, 3 to 6 lines long : 

 umbels loosely few-flowered, sessile or often on short peduncles : flowers three lines 

 long : calyx half as long, with short slender teeth. 



Rare : collected by Domjlas, probably at Monterey, and in Salinas Valley by Brewer. 



22. H. argophylla, Cray. INIore or less densely silky, often silvery : stems 

 decumbent or ascending : leallets usually 5 or 7, from obovate and rounded to 

 oblong and acute at both ends, 2 to 7 lines long : umbels mostly dense and capitate, 

 on short simply bracted peduncles, sometimes nearly equalling the leaves: flowers 4 

 or 5 lines long : calyx half as long ; its teeth conspicuous, filiform and silky, usually 

 nearly ecjualling the tube. — PI. Thurb. 31G. II. aryentea, Kellogg, Broc. Calif. 

 Acad. iii. 38, fig. 8. 



In tlie foot-hills of the Sierra Nevada from the Merced River {Gray) .soutliward, and through 

 the southern jiart of the Statu ; Guadalupe island, Palmer. Variable in pubescence, length of 

 calyx-teeth, &c. 



23. H. decumbens, Benth. 1. c Villous-pubescent and somewhat tomentoso, 

 perennial : stems ascending or ilill'usely procumbent, a foot long or more : leallets 5 

 to 7, cuneate-obovate to -oblong, mostly acute, 3 to C lines long : umbels less dense, 

 on short peduncles, with a 1-3-foliolate bract : flowers 2 to 5 lines long: calyx less 

 silky ; its teeth slender, often as long as the campanulate tube. 



Var. (I) Nevadensis, Watson. Low and apparently annual : flowers somewhat 

 smaller : calyx-teeth half as long as tlie tube. — //. Ileennanni, Anderson, Cat. PL 

 Nevada, 119 ; Watson, Bot. King Exp. 63, in part, 



