418 POLEMONIACEAE 



scarcely longer than calyx, white to pale blue, throat very narrow, half as long as tube ; stamens 

 inserted about midway on throat, subequal petals, filaments glabrous ; pistil 4 mm. long ; capsule- 

 locules several-seeded. 



Interior valleys and foothills, Upper Sonoran Zone; from Butte County, California, to Lower California; 

 Guadalupe Island. Type locality: Guadalupe Island, Lower California. April-June. 



3. Linanthus septentrionalis H. L. Mason. Northern Linanthus. Fig. 3928. 



Linantluts septentrionalis H. L. Mason, Madrono 4: 159. 1938. 



Linanthus Harknessii var. septentrionalis Jepson & Bailey in Jepson, Fl. Calif. 3: 210. 1943. 



Erect annual, 5-30 cm. high, stems simple or branched above. Leaves 5-7-cleft into linear, 



hispidulous or glabrate segments 5-20 mm. long ; flowers solitary on filiform pedicels ; calyx 



deeply cleft into linear-lanceolate segments, hispidulous or glabrate, sinuses about one.half 



filled with a hyaline membrane which flanks the lobes above toward the tips; corolla short- 



funnelform, 1.5 times the calyx, 1-4 mm. long, white to pale blue, throat shorter than tube, with 



a hairy ring at or above the point of insertion of stamens, or rarely glabrous, lobes campanu- 



lately spreading; stamens inserted on the base of throat, 2-3 times as long as throat, equal, 



exserted, filaments glabrous or with a few hairs at the base ; stigma exserted, lobes up to 1 mm. 



long ; capsule cylindric, locules 2-4-seeded. 



Gravelly clearings, Arid Transition Zone; east of the Sierra Nevada and Cascade Mountains to the Rocky 

 Mountains, south to southern Utah, north to central British Columbia. Type locality: "Camp Roosevelt, Tower 

 Junction, Yellowstone National Park, Wyoming." May-July. 



4. Linanthus liniflorus (Benth.) Greene. Flax-flowered Linanthus. Fig. 3929. 



Gilia liniflora Benth. Bot. Reg. 19: under pi. 1622. 1833. 



Navarretia liniflora Kuntze, Rev. Gen. PI. 2: 433. 1891. 



Linanthus liniflorus Greene, Pittonia 2: 254. 1892. 



Dactylophyllum liniflorum Heller, Muhlenbergia 2: 209. 1906. 



Cilia liniflora subsp. eu-liniflora Brand, Pflanzenreich A^^: 133. 1907. 



Erect annual, 1-6 dm. high ; stems with wiry internodes, branching well above the base, branch- 

 ing usually alternate (opposite in subspecies), glabrous to puberulent, rarely villous. Leaves 

 3-9-cleft into linear segments 1-3 cm. long; flowers on slender pedicels in a cymose panicle, bracts 

 leaf-like but reduced ; calyx 3-4 mm. long, cleft to base into linear lobes, often pilose-ciliate to 

 villous or wholly glabrous, sinuses about two-thirds filled with a broad hyaline membrane; corolla 

 short-funnelform, 1-3 cm. long, white to light pink or pale blue, throat 3-4 times the tube (1-2 times 

 in subspecies), lobes obovate with conspicuous veins; stamens inserted on the base of the throat, 

 exserted, filaments with a tuft of hairs on the base ; style exserted, stigma-lobes about 1 mm. long ; 

 capsule obovoid, locules 1-2 seeded. 



Scattered localities from Monterey to San Francisco Bay region, California; much less common than the 

 subspecies. Type locality: "California," presumably Monterey. Collected by Douglas. April-July. 



Linanthus liniflorus subsp. pharnaceoides (Benth.) H. L. Mason. (Gilia pharnaceoides Benth. Bot. Reg. 

 19: under pi. 1622. 1833; G. liniflora var. pharnaceoides A. Gray, Proc. Amer. Acad. 8: 263. 1870; G. tenella 

 Nutt. ex A. Gray, loc. cit., as a synonym; Linanthus pharnaceoides Greene, Pittonia 2: 254. 1892; L. liniflorus 

 var. vallicola Jepson, Man. Fl. PI. Calif. 803. 1925.) Differs from the typical species in the smaller corolla, the 

 throat shorter in proportion to the tube and the characteristically cymose branching in which the branches are 

 opposite; intergrades with the typical species. Very common in the northern Great Basin region from eastern 

 Washington and Idaho south through eastern Oregon into the Coast Ranges of California (reaching the coast 

 from Monterey County to Santa Barbara County), south to Lower California; western Mojave Desert, southern 

 Sierra Nevada foothills, rare in northern Sierra Nevada foothills. Type locality: "California." Collected by 

 Douglas. 



5. Linanthus filipes (Benth.) Greene. Filiform Linanthus. Fig. 3930. 



Gilia filipes Benth. PI. Hartw. 325. 1849. 



Gila pusilla var. calif ornica A. Gray, Proc. Amer. Acad. 8: 263. 1870. 



Linanthus filipes Greene, Pittonia 2: 255. 1892. 



Linanthus pusillus var. californicus Milliken, Univ. Calif. Pub. Bot. 2: 50. 1904. 



Cilia liniflora subsp. pharnaceoides var. filipes Brand, Pflanzenreich 4^^: 134. 1907. 



Diflfusely spreading annual, 5-15 cm. high, stems filiform, cymosely branched, puberulent or 

 more rarely villous below. Leaves 5-cleft into linear-subulate segments, 3-6 mm. long ; flowers 

 on long filiform pedicels in open cymes ; ; calyx deeply cleft into linear hispidulous segments, 

 sinuses about two-thirds filled with a hyaline membrane; corolla funnelform, 3-6 mm. long, 

 white, pink or lilac, sometimes the throat yellow, tube short, glabrous within ; stamens inserted 

 at base of throat, anthers exserted, filaments hairy at base; stigma exserted, lobes 1 mm. long; 

 capsule-locules several-seeded. 



Foothills and rolling plains, Upper Sonoran Zone; Solano County to Humboldt, Trinity, and Shasta Counties, 

 south in the Sierra Nevada to Kern County, California. Type locality, Sacramento Valley. April-July. 



6. Linanthus Lemmonii (A. Gray) Greene. Lemmon's Linanthus. Fig. 3931. 



Gilia Lemmonii A. Gray, Syn. Fl. N. Amer. 2^: 394. 1878. 

 Navarretia Lemmonii Kuntze, Rev. Gen. PI. 2: 433. 1891. 

 Linanthus Lemmonii Greene, Pittonia 2: 257. 1892. 



Spreading pr erect annual, 5-15 cm. high, herbage puberulent to canescent. Leaves 3-5-cIeft 

 into linear divisions 2-5 mm. long ; flowers sessile or subsessile in terminal or axillary cymules ; 

 calyx deeply cleft into linear-hispid puberulent lobes, sinuses about half-filled with a hyaline 

 membrane forming an evident pseudotube ; corolla short-funnelform, 5-8 mm. long, cream-white 



