LEGUMINOS^E. Thermopsis. 



on a short glabrous stipe, 6-8-ovuled ; mature fruit not known. Proc. Am. Acad. 

 xi. 126. T. macrophylla, Torr. in Pacif. R. Rep. iv. 81. T. fabacea, Torr. in Bot. 

 Mex. Bound. 58. 



From Marin and Napa counties southward. 



3. T. niontana, Nutt. More glabrous, somewhat silky-villous especially above : 

 stipules ovate to lanceolate ; leaflets oblong-obovate to oblong, 1 to 3 inches long, 

 obtuse or acutish, sparingly villous beneath, smooth above : bracts mostly lanceo- 

 late : pod pubescent, on a rather slender stipe about equalling the calyx-tube, linear, 

 2 or 3 inches long, straight, erect, 10- 12-seeded. Torr. <fe Gray, Fl. i. 388. T. 

 fabacea, Hook. Fl. i. 128; Bot. Mag. t. 3611 ; Lindl. Bot. Reg. xv. t. 1272 ; not 

 DC. T. macrophylla, var. ft., Torr. & Gray, 1. c. T. fabacea, var. montana, Gray ; 

 Watson, Bot. King Exp. 53. 



From Washington Territory and Oregon, in the mountains, through the interior to Colorado 

 and New Mexico ; probably in Northern California. The typical form, more common eastward, 

 has narrowly oblong leaves. The T. fabacea of Eastern Asia, to which this species has been usu- 

 ally referred, has more spreading pods, with larger and broader more compressed seeds. The only 

 other western species is T. KHOMBIFOLIA, Richardson, confined to the Rocky Mountains, and dis- 

 tinguished by its recurved many-seeded pods. 



2. PICKEBINGIA, Nutt. 



Calyx campanulate, turbinate at base, repandly 4-toothed. Petals equal : standard 

 orbicular, the sides reflexed : wings oblong : keel-petals oblong, distinct, straight, 

 obtuse. Stamens distinct. Style slightly incurved : stigma minute. Pod membra- 

 naceous, linear, compressed, stipitate, several-seeded, straight. A low stout much- 

 branched spinose shrub; leaves evergreen, small, nearly sessile, digitately 1 3-f olio- 

 late, without stipules ; flowers large, purple, axillary, solitary, nearly sessile. 



1. P. montana, Nutt. Widely spreading, densely branched, 4 to 7 feet high, 

 more or less silky-tomentose or glabrate, leafy, the branchlets becoming spinose : 

 leaflets oblanceolate or cuneate-oblong, 3 to 9 lines long, acute or obtuse : flowers 

 near the ends of the branchlets, on Very short minutely 2-bracteolate peduncles, 

 from light cinnamon-red to purple, 7 to 9 lines long: stamens persistent: pod about 

 two inches long, 6 10-seeded (or fewer by abortion), somewhat constricted between 

 the seeds, pubescent ; stipe exserted : seeds oblong, slightly compressed, dark-colored. 

 Torr. & Gray, Fl. i. 389 ; Torr. Bot. Mex. Bound. 51, t. 14, & Bot. Wilkes Exp. 

 282. 



Frequent on dry hills from Lake County to San Diego. The characters of the pod distinguish 

 the genus clearly from Anagyris. 



3. SOPHOBA, Linn. 



Calyx-tube campanulate ; teeth short. Petals nearly equal : standard broad. 

 Stamens distinct ; anthers uniform, versatile. Style incurved : stigma minute. Pod 

 stipitate, terete or somewhat compressed, thick or coriaceous, mostly indehiscent, 

 several-seeded, constricted between the obovoid or subglobose seeds and usually 

 necklace-like. Trees, shrubs, or herbs ; leaves unevenly pinnate, with few or many 

 entire often coriaceous leaflets ; stipules small or obsolete ; racemes terminal. 



A genus of about 25 species, of the warmer regions of the globe. Two low herbaceous species 

 are found in Colorado and New Mexico, and 2 or 3 evergreen shrubs in Texas and Northeastern 

 Mexico, besides a similar West Indian species in Florida. The following is the only species occur- 

 ring near the limits of California. 



1. S. Arizonica, Watson. An evergreen shrub, somewhat canescent with short 

 appressed silky hairs : leaflets 2 or 3 pairs, narrowly oblong, acutish, an inch long ; 



