422 



POLYGONACEAE 



Dry hills. San Carlos Range. Nearly related to E. uuduni. 

 Locs. — Raneho Cantua, S. C. Lillis, type; San Carlos Creek, Jepson 2722. 



46. E. kennedyi Porter. Stems scape-like, wiry, 3 to 8 inches high, arising 

 from a very dense leafy cushion; leaves obovate or oblong, revolute, white- 

 woolly, 11/2 to 5 lines long; involucres tomentulose or glabrate, turbinate- 

 campanulate, nerved and rather strongly angled, deeply triangular-toothed, 

 11/4 to 2 lines long, clustered in a terminal head; calyx white or pink, glabrous, 

 1 to ly^ lines long, segments oblong-obovate ; ovary scabrous. 



Desert slopes or arid plateaus, north and south of the Mohave Desert. 



Locs.' — Mt. PiDos, Hall 6445; San Bernardino Mts. (wliere often very much reduced), 

 Abrams 2S90; foothills west of Bishop, Heller 8317. 



Eefs. — Eriogonum kennedyi Porter; Wats. Proc. Am. Acad. 12: 263 (1877), Sierra 

 Nevada in Kern Co., TV. L. Kennedy. 



E. purpxtsi Brandegee, Bot. Gaz. 27: 457 (1899), type loe. Argus Mts., Purpus 5484. 

 Leaves obovate, 2 to 3 lines long; peduncles filiform; calyx-segments elliptic, abruptly 

 dilated from the base. The sinuses of the involucre usually split down rather freely in 

 the type. Also collected at Independence by Hall 4' Chandler 7297. It seems to be conspeeific 

 with E. kennedyi. E. gracilipes Wats. Proc. Am. Acad. 24: 85 (1889), type loc. White Mts., 

 Mono Co., Shockley, with glandular-imberulent peduncles seems to be very similar to E. 

 kennedyi also. 



47. E. ochrocephalum Wats. Stems scape-like, 2 to 6 inches high, erect 

 from a eaespitose leaf j' base ; leaves silvery-tomentose. oblanceolate to ovate, 

 % to 11/4 inches long, narrowed to a petiole half to as long; involucres in a 

 capitate cluster, turbinate-bellshaped, bladdery in age, 114 to 2i/2 lines long, 

 the 6 to 8 short lobes erect; calyx yellow, glabrous, 1 to I14 lines long, the 

 segments eUiptie, the inner narrower, all obtuse ; tilaments obscurely puberu- 

 lous at base. 



Northwestern Nevada and eastern Oregon, 



Var. agnellum Jepson n. var. Dwarfer form. 2 to 4 inches high, the upper 

 portion of peduncles and heads a little glandular ; leaves ovate or narrowly 



obovate, 2 to 4 lines 



-It ^?A A-^ 



long, petioled. — (Nani- 

 or, pedunculis uncialis 

 2-4 ad summis capitis- 

 ve subglandiilosis, foliis 

 ovatis vel obovatis an- 

 gustatis. lin. 2-4 longis. 

 petiolatis.) — Northern 

 Sierra Nevada : Placer 

 Co., Sonne, type, to Mo- 

 doc Co. (Willow Creek 

 Valley, R. M. Austin). 

 Ref. — Eriogonum ochro- 

 CEPH.\LUM Wats. Bot. Cal. 

 2: 480 (1880), type loe. n. 

 w. Nev., Lemmon. 



48. E. ovalifolium 



Nutt. (Fig. 80a.) Sub- 

 alpine dwarf, the scape- 

 like stems slender, to- 

 mentulose, 1-) to 3 

 inches high, rising from 

 a dense leafy cushion; 

 leaves round-ovate to 

 obovate, 1 to 4 lines 

 long, contracted to a usually short petiole ; involucres turbinate, woolly, several 

 crowded together in a very close head with 3 or 4 short bracts; calyx white, 



Fig. 80. a, Eriogonum ovalifolium Nutt. ; flower, x 10. 

 NIVALE Jones; habit, x 1; c, flower, x 10. 



b, var. 



