GILIA FAMILY 217 



Open or brushy mountain slopes or flats or on mesas, 1300 to 7000 feet : central 

 Mohave Desert ; San Bernardino Mts. and both its bordering cismontane and trans- 

 montane foothills and mesas. Apr.-July. 



Geog. note. — The center of distribution of Linauthus brevieulus lies in the Mohave Desert 

 in those desert ranges extending from Ord Mountain westerly tow-ards Stoddard Well. Although 

 hitherto not know-n in the desert, it occurs in greatest abundance (and in definite patterns) in this 

 montane portion of the desert. South of Barstow about three miles it is a dominant in April and 

 colors the broad washes in colonies from four to five miles long {Jepson 20,363). Similarly, on 

 the slopes north of Ord Mountain, it is abundant for miles in years of above average precipitation 

 and in various areas "covers the ground like a delicate lavender mist" (upper Ord road, Mary Beal 

 780). In the region southward the following stations in the San Bernardino Mountains and their 

 near borders are cited: Oajon Pass, Jepson 6120; Horsethief Caiion, Clohey 4' Anderson 6826; 

 Seeleys Flat, Parish; Arrowhead Lake, Braunton 1061; San Bernardino Valley, Jepson 5536. 



Eefs. — LiNANTHUS BREVicuLus Greene, Pitt. 2:259 (1892) ; Jepson, Man. 806 (1925). Gilia 

 hrevicuJa Gray, Proc. Am. Acad. 12:79 (1876), type loc. "Mohave River" (that is, on its head- 

 waters, north slope San Bernardino Mts.), Palmer. L. androsacev-s var. ireviculus Mlkn., Univ. 

 Cal. Publ. Bot. 2:57 (1904). (?) Gilia royalis Brand, Ann. Conserv. et Jard. Bot. Geneve 15-16: 

 336 (1913), type loc. Swartout Canon, San Gabriel Mts., Ahrams 4" McGregor 642; calyx-teeth 

 shorter and corolla longer than in typical Linanthus brevieulus. 



28. L. nashianus Jepson sp. n. Stems several from the base, sometimes one and 

 branching above, 1^/^ to 8 inches high, pubenileut; leaf and bract divisions 2 to 4 

 lines long, densely and regularly ciliate, otherwise subglabrous; calyx intervals 

 searious to base, the intervals narrower below; calyx-teeth scarious-margined on 

 lower half; corolla white, 7 to 9 lines long, the limb 4 to 5 lines broad, the tube finely 

 and rather densely spreading-puberulent, 3 to 5 times as long as the lobes.- — (Caules 

 nunc plures ab basi, nunc unus et superus ramo-sus, II/2-8 unc. alti, puberulentes ; 

 foliorum bractearumque segmenta 2-4 lin. longa, dense et regulariter ciliata ; caly- 

 cis intervalla scariosa usque ad basim, angustiora infra ; calyeis dentes ab basi ad 

 mediam partem scarioso-marginati; corolla alba, 7-9 lin. longa, limbo 4—5 lin. lato, 

 tubo minute subdense patenter puberuleuti, lobis 3-5-plo longiore.) 



Openly wooded mountain slopes or flats, 2800 to 7300 feet: southern Sierra 

 Nevada in Tulare and Kern Cos. ; Tehachapi Mts. May-June. 



Locs. — S. Sierra Nevada: Lloyd Mdws., Kern Eiver, se. Tulare Co., Jepson 4903 ; Kelly Camp, 

 Greenhorn Mts., C. N. Smith 32a; Poso Creek, Kern Co., C. N. Smith 192; Greenhorn Summit, 

 Greenhorn Mts., C. N. Smith 32; Davis ranger sta.. Greenhorn Mts., Charlotte Nash Smith 209 

 (type) ; Piute Mts., Kern Co., C. N. Smith 174. Tehachapi Mts.: Bear Mt., Jepson 7182. 



Bef s. — Linanthus nashianus Jepson ; type loc. Davis ranger sta.. Greenhorn Mts., Char- 

 lotte Nash Smith 209. L. parviflorus Cov., Contrib. XJ. S. Nat. Herb. 4:153 (1893). GiUanudata 

 Brand; Engler, Pflzr. 4=50:138 (1907), as to Kern Co. plants; not L. nudatus Greene (1895). 

 L. brevieulus var. nudatus Mason; Jepson, Man. 806 (1925). 



29. L. oblanceolatus Eastw. Stem simple or with a few short branches, IV2 

 to 6 inches high; herbage scantily puberulent; cotyledons connate-perfoliate, per- 

 sistent ; leaf-blades palmately parted, the lobes spatulate or oblanceolate to linear- 

 oblanceolate, somewhat callous-margined, IY2 to 4 lines long; flowers congested in 

 a terminal head or occasionally 1 or 2 flowers in the uppermost axils; calyx-tube 

 membranous below the sinuses, somewhat distended by the maturing capsule ; calyx- 

 lobes lanceolate, equaling or a little longer than tube ; corolla salverform, white, 

 4 to 6 lines long, the lobes quadrate, truncate or emarginate, the tube equaling or 

 somewhat exceeding the bracts, the throat yellow; stamens inserted in the middle 

 of corolla-throat, barely exserted from throat, exceeding the style; capsule-cells 

 1 -seeded. 



Mountain flats and slopes, 8400 to 1 0,000 feet : basin of upper Kern River be- 

 tween Volcano Creek and the mouth of the Little Kern. July. 



Field note. — Linanthus oblanceolatus is a narrow endemic of Tulare Co. in the basin of the 

 upper Kern River and also on its tributaries south of the Grand Canon of the Kern. It seems to 

 be relatively uncommon or at least inconspicuous and apparently known from only the following 

 definite stations: Hockett Mdws., Ciilbertson 4221; Chagoopah plateau, Sharsmith 3827; Crab- 

 tree Mdw., Mt. Whitney, Hall # Babcock 5554 ; Templeton Mt., near Kern Peak, Jepson 4969 ; 

 Smith Mdw., Fish Creek (Engler, Pflzr. 4"0:136). 



