24 



CBUCIFERAE 



Desert gulches or gravelly slopes, 5000 to 7500 feet: Inyo Co. East to Utah. 

 May-June. 



Loca.— Wyman Creek, White Mts., Diiran 1925; Nelson Range, Ilnll <.^ Chandler 71G0. Miller 

 Mt., Esmeralda Co., Nev., Shockley 252; Gold Mt., Nev., Purpus 5992; Good Spra., Clark Co., 

 Nev., K. Brandegee. 



Refs. — Streptantiius cr-<\ssic.\ulis Torr. ; Stansb. Expl. Great Salt Lake 384, pi. 1 (1852), 

 typo loc. mountain side, e. shore Salt Lake, Utah, Stansbun/. Cmtlnnthus crassicauUs Wats. Bot. 

 King 27 (1871). 



5. S. major Jepson. (Fig. 129.) Stems 1 or few from a leafy-tufted per- 

 ennial root-erown, simple, 1 to 2 feet high, the cauline leaves few and reduced or 

 almost none; herbage glabrous; leaf-blades oblong to lanceolate, mostly obtusish, 



entire above, but with 1 or 2 pairs of lobes at 

 base, or merely dentate, or wholly entire, 1 to 

 2 inches long, on petioles about as long; flowers 

 glabrous, ascending, 5 to 6 lines long, on pedi- 

 cels 1/2 line long; calyx blue-purple; limb of 

 petals short, little exserted, with a central dark 

 purple-veined area and broad white margins; 

 pods erect, S^^ inches long. 



Desert slopes, 5500 to 7000 feet : ranges in 

 and bordering the Mohave Desert. East to 

 Utah. May-June. 



Locs. — This species is well marked in habit. The 

 stems are stout or at some stations inflated. Infrequent 

 in California, the following are the only localities 

 known to us : Rock Creek, Peirson 65 ; Mt. San Antonio 

 (n. slope) ; San Bernardino Mts. (n. slope), Parish 

 3777; Providence Mts., T. Brandegee. 



Refs. — Streptanthus major Jepson, Man. 415 

 (1925). Caulanthus major Payson, Ann. Mo. Bot. Gard. 

 9:291 (1922). C. crassicaulis var. major Jones, Proc. 

 Cal. Acad. ser. 2, 5:623 (1895), type loc. Bromide Pass, 

 Henry Mts., Utah, Jones 5685. 



6. S. amplexicaulis Jepson. Annual ; 

 stem very slender, a little flexuous, 7 to 12 

 inches high ; herbage glabrous and more or less 

 glaucous, especially on the under side of the 

 leaves; leaf -blades broadly obovate to elliptic- 

 oblong, shallowly sinuate-dentate and obtuse, somewhat narrowed at base or sub- 

 petiolate, 1 to 3i/^ inches long, the upper auriculate- or cordate-clasping, entire, 

 acute; flowers few and remote in the raceme, purplish, ascending; pedicels 3 to 6 

 lines long, spreading; pods slender, erect or ascending, 3 to 4V2 inches long. 



Montane slopes, in dry ground or rocky places, 1500 to 8500 feet : San Bernar- 

 dino and San Antonio mountains, north to the western Mohave Desert. May-June, 



Locs. — Waterman Canon, San Bernardino Mts., Parish; Mt. San Antonio, Peirson 64; San 

 Francisquito Pass; Manzana, Antelope Valley, Davy 2563. 



Refs. — Streptanthus amplexicaulis Jepson, Man. 417 (1925). Caulanthus amplexicaulis 

 Wats. Proc. Am. Acad. 17:364 (1882), type loc. San Bernardino Mts., S. B. # W. F. Parish and 

 W. G. Wright. Euclisia amplexicaulis Greene, Lflts. 1:84 (1904). 



7. S. simulans Jepson. Annual; stem simple or branching from the base, 1 to 

 1% feet high; herbage hispid below, glabrous above or with a few scattered hairs; 

 basal leaves obovate to oblong-oblanceolate, dentate, % to l^/^ inches long, scarcely 

 petioled, the cauline linear-oblong or lanceolate, dentate, sagittate-clasping; flowers 

 yellowish, 4 lines long; pedicels hispid, I/2 to II/2 lines long; pods reflexed or de- 

 scending, 1% to 2 inches long; stigma 2-lobed. 



Fig. 129. SlTREPTANTHUS MAJOR Jep- 



son. a, base of plant, X % ; &, infl., X 

 % ; c, long. sect, of fl. showing stamens, 

 Xiyo; d, pod, X 1/2. 



