248 HYDROPHYLLACEAE 



posed at the summit of the nearly naked stems, the flowers moderately dense; calyx -lobes bristly; 

 corolla white. — Upper Sacramento Biver in Siskiyou Co. 



Var. jacintensis (Dundas) Jepson & Hoover comb. n. Stems 1 to 3, slender, erect, almost 

 leafless or with a few reduced leaves, densely puberuleut, (% or) 1 to 2 feet high, arising from 

 the dense basal tuft of leaves on the heavy root-crown ; leaf blades narrowly oblong, acute, entire 

 or the larger pinnatLfid below, hirsute and white-pubescent, 1 to 3 inches long, the petioles % to 

 as long; racemes spike-like, dense, % to 1 inch long, borne on short slender peduncles V4 to 1 inch 

 long, the peduncles scattered along the axis so that the entire inflorescence is somewhat racemose ; 

 corolla light blue. — Montane slopes or benches, 3000 to 8000 feet: San Gabriel Mts. (head of 

 South Fork Lytle Creek, Johnston 1451) ; San Bernardino Mts. (Holcomb Valley, Parish 10,885) ; 

 San Jacinto Mts. (Fern Valley, Mum 6060). 



Var. patula (Brand) Jepson comb. n. Stems few or several from the root-crown, prostrate 

 or ascending, nearly naked, 5 to 13 inches high, the leaves mostly in a basal tuft; leaf -blades % 

 to 2 inches long, ovate to oblong-lanceolate, entire or with 1 to 3 pairs of supplementary lobes below, 

 or deeply pinnatifid ; racemes rather short, borne in a mostly compact or subcapitate panicle, 

 sometimes in an open panicle; calyx-lobes narrowly obovate to lanceolate or linear-lanceolate; 

 corolla white. — Montane slopes or dry flats, in open forest, 5000 to 9200 feet: Sierra Nevada in 

 Kern Co.; Mt. Pifios region, northern Ventura Co.; San Gabriel, San Jacinto and Cuyamaca 

 mountains. June-July. 



Locs. — Kern Co. : South Fork Middle Tule Eiver, Jepson 4873 ; Piute Peak, Fnrpus 5548. 

 Cismontane S. Cal. : Seymour Creek, Mt. Pifios, n. Ventura Co., Mum 7053a ; Mt. Wilson, San 

 Gabriel Mts., Peirson 165 ; Mt. Waterman ridge, San Gabriel Mts., Peirson 2451 ; Bear Valley, 

 San Bernardino Mts., Mnm 13,254; Tahquitz Valley, San Jacinto Mts., Jepson 2309; Stonewall 

 Mine, Cuyamaca Mts., Parish 4423. 



The differences between var. patula and var. f rigida are extremely slight, some might even say 

 trivial. Certainly many collections are as easily referable to one variety as the other and definite 

 placement is made, if at all, on geographic grounds. 



Var. f rigida (Greene) Jepson comb. n. Plants usuaDy compact and low, the leaves mostly 

 basal, the stems ascending or diffuse, nearly naked, hirsute, 3 to 10 inches high ; leaf -blades lanceo- 

 late to narrowly oblong and acute at both base and apex (rarely ovate), almost always entire, 

 appressed grayish-hirsute, rarely sub-silky, 1 to 2 inches long, tapering into a petiole % to as long; 

 cauline leaves few or almost none, similar, short-petioled or the upper subsessile; r.acemes rather 

 short, usually in a rather compact panicle; panicle somewhat corymbose or a little racemose, some- 

 times condensed and capitate ; corolla white or pale lavender ; scales narrow-oblong, wholly adnate 

 to corolla, the members of contiguous pairs connivent by their free edges, at base adnate to the 

 filaments. — Dry hillslopes or amongst rocks, mostly high altitudes, 5300 to 13,000 feet: North 

 Coast Ranges from Lake Co. to western Siskiyou Co. ; Sierra Nevada from Tulare Co. to eastern 

 Siskiyou Co. ; White Mts. East to Nevada. June-Sept. 



Locs. — The biologically typical form of var. frigida appears to be the extreme high alpine 

 form (9000 to 13,000 feet in the Sierra Nevada) only 3 or 4 inches high with the leaves entire and 

 the inflorescence compacted and capitate or subcapitate (P. heterophylla var. pygmaea Jepson 

 and var. dasyphylla Jepson) : Mt. Shasta, Jepson 20,992 (9000 feet) ; Lassen Peak, H. 3f. Evans ; 

 Pyramid Peak, Eldorado Co., Abrams 12,923 (10,000 feet) ; SUver Pass, Fresno Co., A. L. Grant 

 1532 (11,400 feet) ; Mt. Whitney, Jepson 1089 (12,000 feet). This extreme alpine state passes 

 by many intergradations into somewhat less condensed forms, cited as follows. North Coast 

 Eanges: near Yreka, Butler 1280; Marble Mt., w. Siskiyou Co., Chandler 1655; Mary Blaine Mt., 

 Trinity Co., Tracy 14,455; South Yollo BoUy, Jepson 21,042; Snow Mt., n. Lake Co. Sierra 

 Nevada: Mt. Shasta, Jepson 21,040; Eagle Peak, Warner Mts., Modoc Co., Jepson 7980; Summit 

 sta., Nevada Co., Jepson 21,062 ; Mt. Tallac, Lake Tahoe, Jepson 8143 ; Carson Pass, Jepson 8123 ; 

 Souora Pass, A. L. Grant 308; Rogers Creek, se. Tuolumne Co., Jepson 3383; Bloody Canon, w. 

 Mono Co., Jepson 4457 ; Kaiser Peak, Fresno Co., Jepson 13,024 ; Chagoopah plateau, Kern Canon, 

 Jepson 5007. White Mts. : Campito Mt., Jepson 7289. 



Refs. — Phacelia magellanica Cov., Contrib. U. S. Nat. Herb. 4:159 (1893). Hydrophyl- 

 lum magellanicum Lam., Jour. Hist. Nat. 1:373, t. 19 (1787), typo loc. Straits of Magellan, 

 Patagonia, Commelin. P. circinata Jaeq. f., Eclog. 1:135, t. 91 (1816), based on Hydrophyllum 

 magellanicum Lam. Var. calycosa Jepson & Bailey. P. circinata var. calycosa Gray, Proc. Am. 

 Acad. 10:317 (1875), without indication of locality or country or collector; Bot. Cal. 1:507 

 (1876), "Borax Lake [Lake Co.], Torrey," the first definitely cited locality, wherefore Torrey 343 

 (Gray Herb.) is here named lectotype. P. californiea var. calycosa Dundas, Bull. S. Cal. Acad. 

 33:158 (1935). P. imbricata Greene, Erythea 1:127 (1893), type loc. Napa and Sonoma Cos. 

 P. californiea var. imbricata Jepson, Fl. W. Mid. Cal. 439 (1901), ed. 2, 342 (1911), Man. 820 

 (1925). P. virgata var. hernardina Greene, Erythea 4:55 (1896), type loc. San Bernardino, 

 Parish. P. magellanica f. bernardina Brand, Univ. Cal. Pulil. Bot. 4:218 (1912). P. californiea 

 f. bernardina Mcbr., Contrib. Gray Herb. 49:36 (1917). P. californiea var. bernardina Jepson, 

 Man. 820 (1925). P. imbricata var. condensata Brand, Univ. Cal. Publ. Bot. 4:220 (1912), type 

 loc. New York ]?'alls, Amador Co., Hansen 1283 in part. P. imbricata subvar. hanscnii Brand, 

 I.e., type loc. Irishtown, Amador Co., Hansen 1283 in part. P. imbricata var. caudata Brand, I.e., 



