266 HTDROPnTLLACEAE 



hispid with spreading hairs ; leaf-blades elliptie-obloug to linear-oblong (or ovate) 

 ill outline, 1^^ to 3^2 inches long, irregularly toothed or lobed or pinnately divided 

 (especially below) into oblong or orbicular serrate divisions, the lower segments or 

 divisions 3 to 7 lines long, sometimes distinct and discrete ; petioles mostly short ; 

 racemes dense, in terminal clusters; pedicels very short ( 14 to 1 line long) ; calyx- 

 lobes oblong, obtuse, 2 lines long ; corolla deep violet or purple-blue with whitish 

 throat, rotate-campanulate, 2 to 5 lines long, the lobes crenulate ; scales broad be- 

 low but narrowed above to an acute tip, wholly adnate, the broad portion of each 

 pair so curved as to receive the filament in a pocket-like structure; stamens and 

 deeply cleft style long-exserted ; filaments glabrous. 



Sandy-gravelly desert valleys, washes and mesas, 250 to 5700 feet : Inyo Co. ; 

 eastern Mohave Desert; Colorado Desert. North to Idaho, east to Colorado and 

 Arizona, south to Lower California. Mar. -May. 



Locs. — Inyo Co.: Inyo, Sixford ; pass betw. Coso Mts. and Inyo Mts., Jepson 19,53S; Argua 

 Range (n. end), Jepaon. 19,558; Panamint Valley, Ecvner 52; Emigrant Canon, Death Valley 

 C. N. Smith 101; Johnson Caiion, Panamint Range, Jepson 19,651. Mohave Desert: Barnwell, 

 New York Mts., K. Brandcgee : Mitchells Caverns (plain below). Providence Mts., Jepson 18,350; 

 Paradise Mts. (6 mi. ne.), Jepson 17,252; Poison Cafion, w. of Searles Lake, Allison Krames; 

 Mohave Pinnacles, 15 mi. s. of Trona, C. N. Smith 78; Barstow, Jepson 5360; Ord Mt., Jepson 

 15,493. Colorado Desert: Riverside Mts., e. Riverside Co., /. Grinnell : Painted Caiion, Mecca 

 Hills, Jepson 11,648 ; Deep Canon, Santa Rosa Mts., Mumll,97A (stems very hispid=var. ambigua 

 Mebr.) ; Santa Rosa Mts. (foot of, 12 mi. sw. of Indio), Clary 1005; Silent Canon, foothOls at 

 se. end of Santa Rosa Mts., Jepson 11,694; Bailey Well, e. of Borrego Sprs., Jepson 17,084; 

 Vallecito, e. San Diego Co., Jepson 8008; Coyote Wells (3 mi. w.), Newlon 398. 



Var. funerea Voss. Stems reddish, both stems and leaves very glandular, herbage stain- 

 ing paper brovraish; leaf -blades 1^4 to 6^^ inches long, the lower segments often consisting of 

 distinct and discrete divisions or leaflets, the leaflets sessile or petiolulate ; racemes paniculate or 

 mostly so, rather than cymose. — Caiion flats or washes, Inyo Co.: White Mts. (Westgard Pass, 

 Eovannitz) to Grapevine Mts. (near Klare Spr., Titus Caiion, Jepson 19,849) and Death Valley 

 (Emigrant Pass, C. L. HitchcocTc 12,324). 



Var. minutiflora (Voss) Jepson comb. n. Corolla yello%vish-white, 2 lines long; stamens less 

 conspicuously exsertcd. — Rocky mesas, 400 to 1000 feet, Colorado Desert: Coyote Wells region; 

 Four-S Pass, e. Imperial Co., Peirson 11,465. South to Lower California. 



Refs. — Phacelia crenulata Torr. ; Wats., Bot. King 251 (1871), type loe. Trinity Mts., 

 Nev., 'IVatso7i; Jepson, Man. 824 (1925). P. crenulata var. vulgaris Brand ; Engler, Pflzr. 4-'''' :78 

 (1913), based on type of species. P. ambigua Jones, Contrib. W. Bot. 12:52 (1908), type loc. 

 Needles, Jones 3822 ; stems rather densely setose-hispid. P. crenulata var. ambigua Mebr., 

 Contrib. Gray Herb. 49:25 (1917). Var. ruNEKEA Voss; Munz, Man. 409, 600 (1935), type loc. 

 Black Caiion, White Mts., Duran 561. Var. minutiflora Jepson. P. minutiflora Voss; Munz, 

 Man. 409 (1935), type loc. Cargo Muchacho Mts., Colorado Desert, Munz 4" Hitchcock 12,141. 



31. P. malvaefolia Cham. Stinging Phacelia. Stem erect, freely branching 

 or subsimple, Y^ to 214 feet high ; herbage hispid-bristly throughout, the bristles 

 with a conspicuous pustulate base; leaf-blades round-ovate to elliptic-ovate, trun- 

 cate or cordate at base, shallowly lobed (the lobes serrate) , 1 to 414 inches long, the 

 petioles % to ^ as long ; racemes solitary or geminate ; corolla dull white, 2 to 2^2 

 lines long, longer than the unequal spatulate sepals; scales semi-ovate, the apical 

 point free ; stamens esserted ; capsule globose, 2 to 4-seeded, % to % as long as 

 calyx ; seeds pitted, 1 to 1^4 lines long. 



Ocean bluffs, hillslopes or sand diines along or near the coast, 10 to 500 feet : 

 Monterey Co. to Humboldt Co. North to southern Oregon. May- Aug. 



Locs. — Big Sur, Monterey Co., K. Brandegee ; Cypress Pt., Monterey, Jepson 9757; Bonnie 

 Doon (21/. mi. w.), Santa Cruz Co., Yates 5554; Pilareitos Lake, San Mateo Co., Davy 1139; Lands 

 End, San Francisco, Davy; Shellmound, Emeryville, Alameda Co., Greene; Sausalito, Marin Co., 

 Kellogg 4' Harford 197 ; Inverness, Marin Co., Jepson 557d ; Pt. Arena, Mendocino Co., Congdon ; 

 Trinidad, Humboldt coast, Tracy 8118; Dry Lagoon (near Stone Lagoon), Humboldt coast, Tracy 

 13,212. 



Var. loasaefolla Brand. Leaf -blades averaging smaller (% to 2 inches long), the lower 

 shallowly pinnately cleft or sometimes divided, the lowest often with discrete segments or leaflets ; 

 capsule 4 to 6-seeded, the seeds % line long. — Santa Lucia Mts., especially along the coast, from 

 San Luis Obispo Co. (AvUa, Summers 571 ; Davis Canon, Vnangst) to Monterey Co. (Gorda, 



