GILIA FAMILY 205 



3 (or 4) lines broad ; corolla-tube well developed and twice as long as the lobes, the 

 lobes usually strongly convolute in bud and 1 to 2 lines long; stamens with short 

 filaments, inserted at base of corolla-throat and included in throat ; filaments gla- 

 brous at base ; style 3-cleft a little more than %, the stigmas standing just below 

 the anthers; capsule oblong, the cells many-seeded; seeds reddish-brown with a 

 closely enveloping testa, shortly angular-cylindric, usually pointed at one end, 

 rugulose or punctate, the angles narrowly white-margined. 



Desert slopes and arid valleys, 2000 to 5300 feet : Colorado Desert ; Mohave Des- 

 ert and its bordering ranges; inner South Coast Range from San Luis Obispo Co. 

 to Stanislaus Co. ; Inyo Co. East to southern Utah and western Texas, south to 

 Lower California. Apr.-June. 



Locs. — Colorado Desert and its west-bordering ranges: summit of Mountain Springs grade, 

 e. San Diego Co., Jepson 11,814; Blair Valley, e. San Diego Co., Jepson 8675; Coachella (10 mi. 

 w.). Ball 5816. Mohave Desert and its bordering ranges: Middle Creek, Mt. Piuos, Hall 6482; 

 Amargo, Jepson 15,583; Kramer, Mary Beal 395; Calico Mts., Lemmon; Willow Springs Canon, 

 Old Dad Mts., Jepson 20,415; Fountain Canon, Providence Mts., Jepson 18,210a; Barnwell, New 

 York Mts., K. Brandegee. Inner South Coast Range: Carrizo Plain, se. San Luis Obispo Co., 

 Kech 4" Clausen 3150; Lewis Creek, ne. of Lonoak, e. Monterey Co., Keclc 2769; New Idria, San 

 Carlos Range (Zoe 4:155) ; Puerto Canon, w. Stanislaus Co., Hoover 4342. Inyo Co.: Johnson 

 Canon, Panamint Range, Jepson 19,680 ; Inyo, T. Brandegee. 



Kefs. — LiNANTHUs BiGELOVil Greene, Pitt. 2:253 (1892); Jepson, Man. 802 (1925). Gilia 

 tigelovii Gray, Proc. Am. Acad. 8:265 (1870), based on G. dicliotoma var. parviflora Torr., Bot. 

 Mex. Bound. 147 (1859), Cook's Spr. and near Frontera, Tex., Bigelow, Wright. 



9. L. jonesii Greene. Stems slender (usually wiry or filiform) , dichotomously 

 and diffusely branched or sometimes sparingly branched, 2i/2 to 6 inches high; herb- 

 age glabrous or subglabrous, the pedicels and bracts sparsely set with gland-tipped 

 hairs ; leaf-blades filiform, entire, 4 to 10 lines long, the uppermost or bracteal leaves 

 similar; flowers on pedicels Yi to 4 lines long, terminal and in the forks from near 

 the base of the plant; calyx 2 to 4 lines long, the 5 ribs or nerves of the calyx- 

 tube lightly covered with stipitate glands or the glands sometimes very few, the 

 intervals between the ribs markedly searious to base; calyx-lobes linear, erect m 

 anthesis, about % as long as the tube ; corolla salverform, yellow or buckskin color, 



4 to 5 lines long, a little exceeding the calyx, its lobes 1 to 4 lines long ; stamens 

 inserted at base of corolla-throat, included in throat ; capsule oblong, many-seeded; 

 seeds reddish-brown, closely covered by the testa, the hilum in a deep notch on one 

 side and bordered by a white membranous margin or horse-shoe shaped figure. 



Desert flats and mesas, 500 to 2000 feet : Inyo Co. ; eastern Mohave Desert; Colo- 

 rado Desert. East to Arizona, south to Lower California. Mar.-May. 



Note on the seed. — The immature seeds are clay-color and somewhat flattish, narrowly wing- 

 margined, eventually becoming reddish. The fully mature seeds are reddish-brown, irregularly 

 cylindric-curved or angular, often punctate or rugulose, the angles narrowly white-margined. The 

 hilum is seated in a deep notch on one side, the notch bordered by a narrow membranous margin 

 in such a way as to make a white horseshoe-shaped figure on one side of the seed. 



Locs. — Inyo Co.: Inyo, T. Brandegee ; Panamint Canon, Panamint Range, Hall # Chandler 

 7054. Eastern Mohave Desert: near Garlic Sprs., Tiefort Mt., Jepson 17,266a; Amboy Crater, 

 Jepson 20,309 ; Needles, Parish 9613. Colorado Desert: Coachella, Hall 5816. 



Refs. — LiNANTHUS JONEsn Greene, Pitt. 2:254 (1892). Gilia jonesii Gray, Syn. Fl. ed. 2, 

 2:407 (1886), type loc. Needles, Jones. G. bigelovii var. jonesii Brand; Engler, Pflzr. 4"":144 

 (1907). Linanthus bigelovii var. jonesii Jepson & Mason; Jepson, Man. 802 (1925). 



10. L. arenicola (Jones) Jepson & Bailey comb. n. Desert dwarf, compactly 

 di- or tri-chotomously branched, ^ to 2i/^ inches high, equably leafy to the summit, 

 the stems thinly and microscopically puberulent; leaves linear and entire or those 

 above the base of the stem or above the middle palmately 3 (or 2) -cleft into linear 

 lobes, strongly ribbed, villous above, glabrous below, 1 to 6 lines long; flowers soli- 

 tary in the crowded axils from near the base of the plant upward and finally termi- 

 nal on the branches; calyx obscurely contorted, in anthesis slightly constricted at 

 the mouth with the lobes spreading or divergent, strongly ribbed with the intervals 



