398 POLYGONACEAE 



Inner South Coast Range from western Stanislaus Co. to the head of the 

 San Joaquin Valley and the central Mohave Desert. In habit remarkably 

 similar to C. californica. 



Locs. Puerto Canon, Stanislaus Co., Brewer 1261; San Carlos Eange, Jepson 2737; 

 Estrella, Jared; Bakersfield, Davy 1884; Tehachapi, K. Brandegee; Kramer, K. Brandegee. 



Eef. CHORIZANTHE PERFOLIATA Gray, Proc. Bost. Soc. Nat. Hist. 7: 148 (1861), type loe. 

 Ft. Tejon, Xantus. 



24. C. californica Gray. Stem branching at or near the base, rather spar- 

 ingly forked into slender spreading branches, 4 to 14 inches high; herbage 

 glandular hirsute; basal leaves ovate or broadly oblanceolate, narrowed to a 

 short petiole, % to l 1 ^ inches long; bracts broader than long, divergently 

 3-lobed, the lobes spine-tipped, 4 to 8 lines long ; involucres in 3s at each node, 

 1-flowered, iy 2 to 2 lines long, subcylindric, not ribbed, smooth, with stout 

 spreading spine-tipped teeth; teeth mostly 3, unequal, sometimes with 4 in 2 

 unequal pairs or only 2; calyx white, the tube slender, a little exserted in 

 anthesis, its lobes broadly oblong, very obtuse. 



San Luis Obispo Co. to San Diego Co., mainly near the coast. 



Locs. Arroyo Grande, Alice King; Santa Maria, Blochman; Surf, K. Brandegee (a 

 singular form with somewhat angular and urceolate involucral tubes and very large bracts) ; 

 Santa Barbara, M. S. Baker; Los Angeles Eiver, Braunton 417; San Bernardino, Jepson 

 5522; Playa del Eey, Natho; San Diego, T. Brandegee. 



Eefs. CHORIZANTHE CALIFORNICA Gray, Proc. Bost. Soc. Nat. Hist. 7: 149 (1861). 

 Mucronea californica Benth. Trans. Linn. Soc. 17: 419, t. 20 (1837), type from California, 

 Douglas. 



25. C. insignis Curran. Stem erect, divergently dichotomous, glandular, 

 reddish, 3 to 4 inches high, the involucres solitary and secund along the 

 branches; leaves in a basal tuft, linear-spatulate, glabrous, 3 to 6 lines long; 

 bracts 3-lobed, the lobes oblong, those of the upper ones lanceolate-setaceous; 

 involucres cylindric or obconic, slightly corrugate, lightly 5-sulcate, I l / 2 lines 

 long, armed with 5 horizontally divergent spines; spines equal, straight, as 

 long as the involucral tube ; flowers 4 to 6 in each involucre, pedicelled ; calyx 

 rose-color, hairy, exserted; "stamens 9." 



Central Monterey Co. : Jolon ; Indian Valley. A delicate and interesting 

 species. Notwithstanding its spurless involucre it is very nearly allied to C. 

 leptoceras. The discovery of this species obviously binds C. leptoceras more 

 closely to the generic type of Chorizanthe. 



Ref. CHORIZANTHE INSIGNIS Curran, Bull. Cal. Acad. 1: 275 (1885), type loc. Indian 

 Valley near the Salinas Eiver. 



26. C. leptoceras Wats. (Fig. 70a.) Stems 2 or 3 from the base, very 

 slender, divaricately dichotomous, 3 to 11 inches long; herbage glabrous ex- 

 cept a little pubescence on the bracts and involucres; leaves basal, oblanceo- 

 late, 1/2 to 1 inch long; bracts 3-lobed, I 1 /** to 2 l / 2 lines broad; involucres in 

 capitate clusters in the forks and terminal on the branchlets, the proper tube 

 short, soon flaring into 6 lanceolate long-awned ciliate teeth and armed at 

 base with 6 uncinate spine-like spurs; flowers 2 or 3; calyx campanulate, its 

 spatulate lobes almost distinct; stamens 6. 



Dry sandy plains at the southerly bases of the San Gabriel and San Ber- 

 nardino mountains. 



Locs. Newhall ace. Davidson; Highland, Parish; San Bernardino, Parish 3646. 



Eefs. CHORIZANTHE LEPTOCERAS Wats. Proe. Am. Acad. 12: 269 (1877). Centrostegia 

 leptoceras Gray; T. & G. Proc. Am. Acad. 8: 192 (1870), type loc. San Gabriel, Lobb. 



27. C. thurberi Wats. (Fig. 70b.) Stems 1 or several from the base, di- 

 or tri-chotomously forking, 2 to 8 inches high; herbage glandular-hispidulose 

 near the base, sparingly so above ; leaves in a basal rosette, elliptic to oblong, 

 3 to 4 lines long ; bracts small, 3-lobed and spine-tipped ; involucres chartaceous, 

 2-flowered, solitary in the axils of the bracts, 2 lines long, cylindric, 5-toothed 



