392 POLYGONACEAE 



at base and in whorls at the nodes or reduced above ; involucres cylindric- 

 urnshaped, 6-ribbed, 2 lines long, reticulate between the ribs; involucral teeth 

 6, nearly equal, with scarious margins, the tips uncinate or straight; calyx- 

 lobes bifid or usually so. , 



Sierra Nevada foothills. 



Locs. Clover Creek Falls, Shasta Co^ M. S. BaJcer 460; Chieo, Parry; Sweetwater Creek, 

 El Dorado Co., K. Brandegee ; Merced Co. foothills, Buckminister ; Baymond, Congdon; Toll 

 House, Fresno Co.,' Hall $ Chandler 30. 



Kef. CHORIZANTHE STELUJLATA Benth. in DC. Prodr. 14: 26 (1856), type loe. east side 

 of the upper Sacramento Valley, Hartweg 1937. 



4. C. pungens Benth. (Fig. 67c.) Stems prostrate or at first erect, more 

 or less dichotomous, 2 to 15 inches long, the involucres in head-like clusters 

 on very short lateral branchlets or terminal ; herbage villous pubescent ; leaves 

 basal and in pairs at the lower nodes, spatulate or oblanceolate, narrowed to 

 a petiole, y 2 to 2 (or 4) inches long, reduced above to bracts; involucres 

 cylindric-urnshaped, hairy, 1 to l l / 2 lines long, subtended by subulate or 

 acicular pungent bracts; involucral tube sharply 6-angled or -ribbed, un- 

 equally 6-toothed, the alternate teeth shorter, all uncinate and more or less 

 scarious-margined towards the base; calyx white, its lobes equal, oblong, 

 erose-denticulate, hairy on the outside; stamens 9 or 6. 



Sand-dunes and sandy valleys along the coast from Marin Co. south to 

 Santa Barbara Co. 



Loes. San Francisco, Jepson; Eockspur, Monterey Co., K. Brandegee; Seaside, Heller 

 6749; Pacific Grove, Jepson; Surf, K. Brandegee. 



Var. diffusa Parry. Leaves all basal; scarious border of the involucral 

 teeth pink. Valleys, Santa Cruz to Monterey. 



Var. nivea Curran. All the involucral teeth with scarious white margins, 

 the alternate teeth smaller ; calyx yellow, its lobes with white margin. Moun- 

 tains near San Luis Obispo ; Seaside, F. G. Woodcock. 



Var. cuspidata Parry. Involucral teeth without scarious margins or the 

 margins scant, otherwise identical with the species. San Francisco (Davy 

 1172) north to Dillon's Beach (M. 8. Baker). 



Var. robusta Jepson n. comb. Stems erect, branched above, y 2 to 2 feet 

 high ; heads large, dense, mostly terminal or subterminal ; involucral teeth 

 with narrow margins or none. Bay region south to Monterey Bay : Alameda, 

 Jepson; Colma, K. Brandegee; Aptos, Parry. 



Eefs. CHORIZANTHE PUNGENS Benth. Trans. Linn. Soc. 17: 419, t. 19, fig. 2 (1837), type 

 from California, Douglas; Jepson, Fl. W. Mid. Cal. 151 (1901). C. andersonii Parry, Proc. 

 Davenp. Acad. 5: 175 (1889), type loc. Scotts Valley near Santa Cruz, Anderson. C. doug- 

 lasii Parry, 1. c. Var. DIFFUSA Parry, 1. c. 4: 60 (1884). C. diffusa Benth. in DC. Prodr. 

 14: 26 (1856), type loc. Monterey, Hartweg 1938. Var. NIVEA Curran, Bull. Cal. Acad. 1: 274 

 (1885), type loc. mountains near San Luis Obispo. Var. CUSPIDATA Parry, Proc. Davenp. 

 Acad. 4: 60 (1884). C. cuspidata Wats. Proc. Am. Acad. 17: 379 (1882), type loc. San 

 Francisco, M. E. Jones 2386. C. villosa Eastw. Bull. Torr. Club, 30: 485 (1903), type loc. 

 Bodega Pt., Eastwood. Var. ROBUSTA Jepson. C. robusta Parry, Proc. Davenp. Acad. 5 : 

 176 (1889), type spms. from Aptos, Parry, and Alameda, Greene; Jepson, Fl. W. Mid. CaL 

 ed. 2, 129 (1911). 



5. C. douglasii Benth. Stem erect, tri- or di-chotomously branching, 4 to 

 6 inches high; basal leaves spatulate, shortly petioled, the cauline oblong to 

 linear; bracts subulate; herbage somewhat hairy pubescent; involucres hairy, 

 condensed in terminal heads, urnshaped-cylindric, l 1 /^ lines long, sharply ribbed, 

 reticulate between the ribs; involucral teeth spreading, membranous margined 

 below the short hooked awn, the membrane continuous in the sinus be- 

 tween the teeth ; calyx rather deeply cleft, its lobes equal, oblong-ovate, obtuse, 

 erosulate. 



Monterey Co. 



Locs. No exact station known. We maintain this as a species with misgivings but refer 

 here with considerable certainty a collection made in Monterey Co. by Mrs. Mary S. Clemens 





