PEA FAMILY 



333 



marked extremes these plants are here segregated in varietal categories, but these categories are 

 necessarily only approximations, since there are many intergrades and many diverse forms. 



Var. saundersii Mcbr. Herbage more or less canescent, sometimes becoming quite bright 

 green; leaflets mostly rather short and broad (elliptic to oblong or oblong-ovate, 3 to 7 lines 

 long) ; calyx brownish, nearly or quite glabrous outside, hairy inside. — Desert slopes and mesas, 

 2000 to 6000 feet : eastern Mohave Desert ; north to Mono Co. 



Locs. — VictorvOIe, Hall 6197; Barstow, Jepson 4785, 5355; Coolgardie Yucca mesa, n. of 

 Daggett, Jepson 6697; Eandsburg, E. Brandegee ; Emigrant Canon, Panamint Eange, Jepson 



7119; Big Pine, Eall 4- Chandler 7222; Bishop, E. 

 Brandegee. 



Var. johnsonii Jepson. Herbage mostly persist- 

 ently canescent ; leaflets mostly long and narrow (nar- 

 rowly linear or linear-lanceolate, 3 to 10 lines long, 

 the terminal commonly longer than the lateral) ; calyx 

 canescent or weakly puberulent outside, hairy inside 

 or with a tuft of hairs at the sinuses. — Desert slopes 

 and mesas: Death Valley ranges; Cottonwood Mts. 

 and Ord Mt. East through southern Nevada to north- 

 ern Arizona and southwestern Utah. 



Locs. — Funeral Mts., Jepson 6908; Hanaupah 

 Canon, Panamint Range, Jepson 7103 (a narrow zone, 

 about 1 mile wide); Ord Mt., Jepson 5852; White 

 Tank, w. side of Pinto Mts., n. Eiverside Co., Jepson 

 12,625 ; Lookout Mt., n. of Indio, Jepson 5982 ; Cot- 

 tonwood Mts., Hall 6024. The two latter collections 

 clearly intergrade to the next variety. 



Var. californica Jepson comb. n. Leaflets some- 

 times more or less decurrent on rachis ; calyx canes- 

 cent. — Valleys and canons, 1000 to 3500 feet: desert 

 slopes of the San Jacinto Mts. and east end of San 

 Bernardino Mts. ; also in San Jacinto Valley (cis- 

 montane S. Cal.). This form is scarcely worth a sep- 

 arate category. 



Locs. — Byrnes Canon, e. end San Bernardino 

 Mts., Parish 2991 ; Warren's W^ell, Parish 2992 ; Mor- 

 ongo Wash, Munz 5167; Palm Sprs. of San Jacinto, 

 Parish 4111; Banning, Oilman; Palm Canon of San 

 Jacinto, Jepson 1348; San Jacinto Valley, Geo. F. 

 Beinhardt. 



Refs. — Parosela fremontii Vail, Bull. Torr. 

 Club 24:16 (1897) ; Jepson, Man. 558 (1925). Dalea 

 fremontii Torr.; Gray, Mem. Am. Acad. n. ser. 5:316 (1855), type loc. "mountains of Pah-TJte 

 country" (that is. Muddy River, s. Nev.), Fremont 417. Psorodendron fremontii Rydb. N. Am. 

 Fl. 24:43 (1919). Parosela wheeleri Vail, Bull. Torr. Club 24:17 (1897), type from Nevada, 

 Wheeler Exp. P. fremontii var. wheeleri Rob. ; Mcbr. Contrib. Gray Herb, 65 :16 (1922). Psoro- 

 dendron wheeleri Rydb. N. Am. Fl. 24:42 (1919). Var. saundersii Mcbr. Contrib. Gray Herb. 

 65:16 (1922) ; Jepson, Man. 558 (1925). Dalea saundersii Parish, Bull. S. Cal. Acad. 2:83, pi. 2 

 (1903), type loc. Victorville, Saunders. Parosela saundersii Abrams, Bull. N. Y. Bot. Gard. 

 6:396 (1910). P. johnsonii var. saundersii Parish, Bot. Gaz. 55:308 (1913). Psorodendron 

 saundersii Rydb. N. Am. Fl. 24:44 (1919). Var. johnsonii Jepson, Man. 558 (1925). Dalea 

 johnsonii Wats. Bot. King 64 (1871), type loc. near St. George, Virgin River, Utah., J. E. John- 

 son, Palmer. Parosela johnsonii Vail, Bull. Torr. Club 24:16 (1897). Psorodendron johnsonii 

 Rydb. N. Am. Fl. 24:43 (1919). Parosela johnsonii var. minutifolia Parish, Bot. Gaz. I.e., type 

 loc. mouth of Panamint Canon, Hall 4- Chandler 7002. Var. californica Jepson. Dalea cali- 

 fornica Wats. Proc. Am. Acad. 11:132 (1876), type loc. San Bernardino Mts., Parry. Parosela 

 californica Vail, Bull. Torr. Club 24:17 (1897) ; Jepson, Man. 558 (1925). Psorodendron cali- 

 fornicum Rydb. N. Am. Fl. 24:43 (1919). Parosela californica var. simplifolia Parish, Bot. Gaz. 

 55:309 (1913), type loc. betw. Palm Springs and Whitewater, western part of the Colorado 

 Desert, M. F. Gilman 51 ; 1 to 4 leaves next the inflorescence are sometimes simple in the var. 

 californica; in the var. simplifolia these simple leaves are a little longer and more conspicuous 

 than usual. 



4. p. schottii Hel. Mesa Dalea. (Fig. 203.) Shrubby slender somewhat 

 spinose bush 3 to 8 feet high; herbage bright green and nearly glabrous, or the 

 young parts canescent; glandular dots dark, but the branches nearly glandless; 



Fig. 203. Parosela schottii Hel. 

 a, fl. branch, X % ; 6, fl., X 1^ ; c, pod, 

 X 11/2. 



