340 BORAGINACEAE 



Locs. — Inyo Co.: Silver Canon, White Mts., Heller 8270; Quail Spr., left-hand fork of John- 

 son Caiion, Panamint Kange, Jepaon 19,745. Mohave Desert: Mitchell Caverns, Providence Mts., 

 Jepson 18,220; Willow Sprs. (cove below). Old Dad Mts., Jepson 20,397; Kelso (5% mi. ne.), 

 Jepson 20,572; Paradise Mts. (4% mi. ne.), Jepson 20,331. Colorado Desert: Berdoo Caiion, 

 Conehilla Range, Clary 1167; Painted Caiion, Mecca Hills, Jepson 11,654; Palm Caiion of San 

 Ysidro, Jepson 8805; Yaqui Well, e. San Diego Co., Jepson 17,115; Box Caiion, Blair Valley, e. 

 San Diego Co., Jepson 8C47 ; Vallecito, e. San Diego Co., Jepson 8626; Myers Creek bridge, sw. 

 Imperial Co., Jepson 11,779. 



Var. fergusonae Mebr. Corolla 3 to 3^4 lines broad. — Palm Springs of Mt. San Jacinto, 

 northwest Colorado Desert. 



Eefs. — Cryptantha barbigera Greene, Pitt. 1:114 (1887) ; Jepson, Man. 849 (1925). Eri- 

 trichium harhigerum Gray, Syn. Fl. 2:194 (1878), "S. California from Santa Barbara Co. to S. 

 Utah and Arizona, Parry, Palmer, Smart, Rothroch." Krynitskia iurbigera Gray, Proc. Am. 

 Acad. 20:273 (1885), "only from the s. parts of Cal. and the adjacent w. part of Ariz." Var. 

 TEROUSONAE Mcbr., Contrib. Gray Herb. 56:59 (1918), type loc. Palm Springs (of San Jacinto), 

 Margaret C. Ferguson 42. C. fergusonae Brand; Fedde, Eepert. Sp. Nov. 24:58 (1927). 



8. C. nevadensis Nels. & Ken. Stems slender, flexuous or weak, branching, 

 sometimes diffuse, 5 to 12 inches high ; herbage appressed-hispid ; flowers as if sub- 

 capitately glomerate on the ends of the branches, or the inflorescence sometimes 

 becoming spicate and % to 1 inch long ; calyx-lobes linear-filiform, densely short- 

 silky on the inside and margins, the back glabrous or comparatively glabrous save 

 that the midrib is set with scattered long spreading bristles; corolla 1,4 line broad; 

 calyx in fruit 3 to 4% lines long ; nutlets narrowly lanceolate-attenuate or narrowly 

 cuneate, densely sharp-murieate on the flatfish back, the ventral side muriculate- 

 tuberculate, the angles rounded or obtuse; ventral side eonvexly 2-pIaned, the 

 groove forked at base, partially open, or closed. 



Sandy flats, mesas and canon bottoms, often supported by desert bushes, 800 to 

 4000 feet : Inyo Co. ; ea.stern Mohave Desert ; Colorado Desert. South into Lower 

 California, east to Arizona, Nevada and Utah. Mar. -Apr. 



Locs. — Inyo Co.: Black Canon, White Mts., Vuran 571 ; Hole-in-the-Rock Spr., Daylight Pass, 

 Grapevine Mts., Jepson 19,806; Argus Range (n. end), Jepson 19,562; Hanaupah Caiion, Pana- 

 mint Range, Jepson 6962; Johnson Caiion, Panamint Range, Jepson 19,602; Slate Range, Allison 

 Krames. Mohave Desert: Avawatz Mts., Jepson 17,321; Paradise Spr. (6 mi. ne.). Paradise Mts., 

 Jepson 17,260; Calico Mts., Jepson 5407; Barstow, Jepson 5393; Newberry (lava sw.), Xewlon 

 507a; Kelso, Jepson 20,571 ; Amboy Crater, Jepson 20,312. Colorado Desert: Deep Canon, Santa 

 Eosa Mts., Clary 1649 ; Vallecito, e. San Diego Co., Jepson 8547. 



Eefs. — Crtptantha nevadensis Nels. & Ken., Proc. Biol. Soc. Wash. 19:157 (1906). Kry- 

 nitzTcia iarhigera var. inops T. Bdg., Zoe 5:228 (1906), type loc. Mohave Desert, T. Brandegee. 

 C. arenicola Hel., Muhl. 2:242 (1906), type loc. Laws (3 mi. w.), Inyo Co., Heller 8203 (not 

 "3203"). C. harbigera var. inops Mcbr., Proc. Am. Acad. 51:548 (1916); Jepson, Man. 849 

 (1925). 



9. C. dumetorum Greene. Stem branching from the base, diffuse, 5 to 13 

 inches high, thinly appressed-hispid; leaf -blades linear-lanceolate to ovate, i/o to 

 li/o inches long, loosely hispid and conspicuously white-pustulate ; spikes in 2s and 

 4s, at length loose, Y^ to 4 inches long; calyx-lobes linear to narrow-lanceolate, 

 warty-corrugated, the spreading or defiexed bristles arising from the warts ; corolla 

 1/3 line broad; style about equaling nutlets; nutlets 4, narrow-lanceolate, 1 large 

 and 3 (or 2 or 1) small, all thickly muriculate dorsally and ventrally, the angles 

 obtuse, the ventral groove closed in the small nutlets, not forked but small-areolate 

 at base ; ventral groove in large nutlet broad, nearly covering ventral face; fruiting 

 calyces appressed to rachis, I14 to li/o lines long. 



Desert flats or slopes of desert ranges, 1000 to 3500 feet: Conehilla Desert; 

 western and central Jloliave Desert. East to Nevada. Apr.-May. 



Ecol. note. — Cryptantha dumetorum, usually an inhabitant of desert plains, is most commonly 

 found growing under the protection of desert shrubs. The stems grow up through the shrub, 

 flexuously spreading or reclining amongst its branches; they are weak and brittle and can be 

 disengaged from the supporting twigs only with some difficulty. 



The calyx is fleshy; its lobes, tending to be involute-teretish, are 4: the upper one (next the 

 axis) is broad and cleft at apex, the 3 lower are narrow and entire. The 4 nutlets are equal or 



