GILIA FAMILY 199 



Eefs. — Gtmnosteris nudicauus Greene, Pitt. 3:304 (1898). Collovim midicaulis H. & A., 

 Bot. Beech. 368 (1840), type loc. "Green River, Snake Country," Tolmie. Gilia nudicaulis Gray, 

 Proc. Am. Acad. 8:266 (1870). Linanthus nudicauUs Howell, Fl. Nw. Am. 456 (1903). Var. 

 PARVULA Jepson, Man. 809 (1925). Gilia parvula Bydb., Mem. N. Y. Bot. Card. 1:320 (1900), 

 type loc. Swan Lake, Yellowstone Park, Tweedy 823. Gymnosteris parvula Hel., Muhl. 1:3 

 (1904). Gymnosteris pulchella Greene, Pitt. 3:304 (1898), type loc. Steamboat Sprs., Washoe 

 Co., Nev., Sonne. 



2. G. minuscula Jepson. Plants 2 to 4 lines high ; involucre 1% to 1% lines 

 long; corolla white, fading yellowish, I14 lines long, exceeding the calyx, its throat 

 yellowish, its lobes short, obtuse, % to % the length of the tube ; capsule about 13 

 to 18-seeded. 



Alpine gravelly or sandy slopes, 10,300 to 11,800 feet : "White Mts., Mono Co. 

 July. 



Locs. — Sheep Mt.; Big Prospector Mdw., Jepson 7309. 



Eef. — Gymnosteris minuscula Jepson, Man. 809 (1925), type loc. Sheep Mt., White Mts., 

 Mono Co., Jepson 7326 (typ. in Herbario Jepsoniano). 



9. LINANTHUS Benth. 



Low slender annuals. Leaves opposite, palmately divided to the base into fili- 

 form, narrowly linear or oblanceolate divisions (thus almost seeming as if in 

 whorls in some species), very rarely entire, rarely some uppermost ones alternate. 

 Flowers scattered or in terminal capitate clusters. Calyx-tube commonly scarious 

 between the ribs or angles, its teeth usually equal. Corolla campanulate, funnel- 

 form, or salverform. Stamens equally inserted on the corolla. Capsule with few 

 to many seeds in each cell. — Linanthus maculatus has entire leaves, as have also 

 species of the section Eulinanthus, partially or wholly. — Species about 50, western 

 North America and Chile. (Greek linon, flax, and anthos, flower.) 



A. Corolla campanulate to fimnelform, its proper tube very short or obscure, much shorter 

 than the throat; transmontane deserts or mostly so (except no. 6). — Subgenus Parkta. 



Flowers 2 to 4 lines long; corolla-throat mthout protuberances; calyx-lobes a little unequal; 

 corolla white. 

 Leaves oblong-linear, entire ; disk at base of corolla 5-lobed ; Colorado Desert.. 1. L. maculatus. 



Leaves mostly trifid; disk at base of corolla entire; e. Mohave Desert and Inyo Co 



2. L. demissus. 

 Flowers 5 to 9 lines long; calyx-lobes equal. 



Corolla-lobes entire ; filaments glabrous ; leaves palmately cleft or parted. 



CoroUa pink; calyx-lobes ovate; stems filiform-wiry, almost naked; se. San Diego Co 



3. L. belhis. 

 Corolla white ; calyx-lobes subulate or lanceolate ; stems a little stouter, leafy. 



Corolla-throat without protuberances ; calyx-lobes subulate, not membranous-mar- 

 gined or only slightly, arising abruptly from the truncate border of the 



membranous calvx-tube; San Antonio Mts., S. Cal....- i. L. concinnvs. 



Corolla-throat with somewhat sac-like protuberances ; calyx -lobes lanceolate, broadly 

 membranous-margined, the sinuses acute; Mohave Desert (and its border- 

 ing ranges), South Coast Ranges and Inyo Co 5. L. parryae. 



CoroUa-lobes dentate ; corolla usually pink ; filaments hairy at base ; leaves linear and entire ; 

 cismontane S. Cal. and w. Colorado Desert 6. L. dianthifloriis. 



B. CoroUa f unnelf onn or salverform, the tube equaling the throat, usually several times longer. 



1. Flowers mostly scattered, usually solitary in the axils or terminal. 



Leaf-blades mostly linear and entire (some parted or divided in nos. 7 and 10). — Subgenus 



Edunanthus. 



Corolla 9 to 15 lines long, 12 to 15 lines broad, the throat almost obsolete; stamens inserted 



near base of corolla-tube, hairy at base; anthers linear-oblong; seeds with a loose 



honey-comb testa; leaf -blades palmately divided or linear and entire; cismontane 



and transmontane 7. L. dichotomus. 



CoroUa 3 to 6 (or 8) lines long, 1 to 4 lines broad; corolla-throat % to as long as corolla-tube, 

 obscurely differentiated from the tube ; stamens inserted at base of throat, glabrous; 

 anthers oblong ; seeds with a close testa ; mostly transmontane deserts. 



