208 



POLEMONIACEAE 



bordering their foothills on the west side of the Sacramento Valley) and to Hum- 

 boldt Co.; Marysville Buttes; Sierra Nevada foothills from Kern Co. to Shasta Co. 

 and also on the rolling plains immediatelj' bordering the foothills on the east side 

 of the Great Valley. Abundant. Apr.-July. 



Field note. — Linanthus filipes, an inhabitant of open grassy hills and openly wooded slopes, 

 is of early summer-flowering annuals doubtless the species of greatest abundance in individuals 

 throughout the length of the Sierra Nevada foothills, that is, during the period of initial dryness. 

 Frequently it forms quite pure colonies 10 to 12 feet in diameter. The leaf -divisions are densely 

 fascicled on the lower part of the stem. When the internodes of the lower part of the stem are 

 very short and the congestion of fascicles in such cases vary marked, this feature is reminiscent 



of the main stems of Leptodactylon species, notwith- 

 standing that plants of Linanthus filipes are annual 

 and so delicate and those of Leptodactylon are peren- 

 nial and so coarse. 



Locs. — North Coast Ranges and the rolling plains 

 bordering their foothills on the Sacramento Valley 

 side: Hartley sta., nw. Solano Co., C. F. Baker 2883; 

 Martin ranch. South Fork Trinity River, Jepson 2016 ; 

 Paskenta (6 mi. w.), sw. Tehama Co., Virginia Bailey ; 

 Dibble Creek, w. of Red Bluff, Jepson 20,928 ; Sims 

 3ta., Shasta Co., Jepson 20,922. Marysville Buttes: 

 South Peak, Jepson 20,929. Sierra Nevada foothills 

 and the rolling Great Valley plains immediately bor- 

 dering them: Sycamore Gulch, Greenhorn Mts., C. N. 

 Smith 315; Three Rivers (e. of), TV. Fry 123; betw. 

 Pinehurst and Badger, Fresno Co., Newlon 174; Ah- 

 wahnee, Madera Co., Jepson 12,827; Ruth Peirce Mine 

 above Hornitos, Mariposa Co., Jepson 10,707 ; Snell- 

 ing (5 mi. n.), Merced Co., Hoover 965; LaGrange, 

 se. Stanislaus Co., Jepson 20,923; Harden ranch, s. 

 Tuolumne Co., Jepson 10,559 ; Columbia, n. Tuolumne 

 Co., Jepson 6392; Black Creek (5 mi. ne. of Copper- 

 opolis), Calaveras Co., Tracy 5632; Dry Creek hills, 

 n. of lone, Amador Co., Jepson 15,215; Placerville, 

 E. Brandegee; Chico (plains e.), B. il. Austin 152; 

 Oak Run, ne. Shasta Co., Blanhinship. 



R«fs. — Linanthus filipes Greene, Pitt. 2:255 

 (1892); Jepson, Man.803, fig. 777 (1925). Gilia filipes 

 Benth., PI. Hartw. 325 (1849), type loe. "Sacramento 

 Valley" (the upper valley, east side; cf. Erythea 5 :55), 

 Eartioeg 233. G. liniflora var. filipes Brand; Engler, 

 Pflzr. 4==»:134 (1907). L. pusillus Mlkn., Univ. Cal. Publ. Bot. 2:49 (1904) ; Jepson, Fl. W. Mid. 

 Cal. 430 (1901), ed. 2, 334 (1911) ; not L. pusillus Benth. Gilia pusilla var. calif arnica Gray, 

 Pro'e. Am. Acad. 8:263 (1870), based on G. filipes Benth. 



14. L. liniflorus Greene. Stem erect, usually simple below, but freely and 

 widely branched above, 1/2 to l^/o feet high, glabrous; leaf-blades palmately 3 to 

 7-divided into linear-filiform segments, minutely scaberulous, puberulent in the 

 sinuses, 3 to 5 (or 10) lines long; flowers on long capillary pedicels in a dichoto- 

 mously branched paniculate cyme, the pedicels mostly 4 to 14 lines long; calj'x 

 minutely puberulent to glabrate, narrow-campanulate to turbinate. 1% to 2yo lines 

 long, its lobes oblong or lanceolate, 1/0 to as long as the tube; corolla short-funnel- 

 form, white or tinged with pink or lilac, 4 to 6 (or 8) lines long, the tube very short 

 (i/o to 1 line long), the throat about IVo to 2 lines long; stamens inserted in or near 

 base of corolla-throat, about M> the length of the lobes; filaments pilose at very base 

 or sometimes on lower part, the throat and tube usually puberulent at their in- 

 sertion and below ; capsule oval, the cells 2 to several-seeded ; seeds mucilaginous 

 when wetted. 



Dry open ridges and sandy flats. 100 to 5000 feet: South Coast Kanges from 

 San Francisco Co. to San Luis Obispo Co. ; western Mohave Desert ; cismontane 

 Southern California from Santa Barbara Co. to San Diego Co.; Sacramento Valley 

 (west side) ; San Joaquin Valley ; southern Sierra Nevada in Kern Co. ; Tehachapi 

 Mts. Apr.-June. 



Fig. 390. Linanthus filipes Greene. 

 a. habit, X Va ; 6, A., X 2 ; c, long. sect, 

 of coroUa, X 2 ; d , calyx, X 2. 



