222 POLEMONIACEAE 



into lanceolate lobes tipped with a long bristle ; coi'olla bilabiate, white, sky-blue or 

 pink, 7 to 9 lines long, its lobes oblong, truncate at apex and subentire or 3-toothed 

 or retvise with a miicro in the notch, or sometimes rounded at apex, the 3 upper lobes 

 with a characteristic white and red pattern, the 2 lower smaller and unmarked, or 

 often one of the lower somewhat marked and approximate to the upper lip ; stamens 

 stronglj' declined, conspicuously exserted ; anthers yellow or sometimes blue ; style 

 exserted; capsule ovate, 3-sided, li/4 to 2 lines long, 2 to 6-seeded. 



Sandy mesas, vallej^s and washes, 600 to 4700 feet : Mohave Desert ; Diablo 

 Range ; southern Sierra Nevada in Kern Co. ; Inyo Co. East to Nevada and Arizona, 

 south to Sonora. Apr. -June. 



Field note. — In years of highly favoraljle or exceptional precipitation, Langloisia matthewsii 

 may be extremely abundant on open plains and in sandy ralleys almost throughout the MohaTS 

 Desert. In such years the individuals are well-developed, forming low round mound-like plants 



8 to 12 inches in diameter and one-third to one-half as high. 



Usually the corolla shows 3 lobes in the upper lip and 2 lobes spreading laterally in the lower 

 lip. The lobes of the upper lip usually show a distinctive double pink arch (as a color pattern) 

 beneath a white splotch. If one of the lobes of the lower lip is moved to the upper lip, this fourth 

 lobe of the upper lip usually does not show the pink arch or it is less distinct. 



Locs. — Mohave Desert: Rosamond, Davt/ ; Rock Creek, n. slope San Gabriel Mts., Peirson 468; 

 Mohave sta. (15 mi. e.), Jcpson 15,437 ; Cajon Pass (desert side), Jcpson 6128 ; Saltdale, Jcpson 

 19,502; Amargo, Jepson 15,776; Johannesberg, Jepson 19,515; Kramer, Jepson 5325; Searles 

 Lake, Jepson 7141; Hinkley, Jepson 15,545; Barstow, Jepson 5387; Ord Mt., Jepson 15,514; 

 Paradise Valley (u. of Calico Mts.), Mary Beal 581; Lavic, Jepson 15,598. Imier South Coast 

 Range: Alcalde, n. end Diablo Range, sw. Fresno Co., T. Brandegee. Southern Sierra Nevada 

 in Kern Co. : Weldon, Voegelin 212 ; Kernville, K. Brandegee ; Walker Pass, Jepson 19,869. Inyo 

 Co. : Argus Range, Purpus 5355 ; Owens Lake, Jepson 5100 ; Tinnemaha Creek, Almeda Nordyke; 

 Bishop, Almeda Nordyl'e. 



Eefs. — Langloisia matthewsii Greene, Pitt. 3 :30 (1896) ; Jepson, Man. 809 (1925). Loese- 

 lia ■nuittliewsii Gray, Bot. Cal. 2:466 (1880), type loc. Independence, Inyo Co., Matthews. Gilia 

 matthetcsii Grav, S■^^l. Fl. cd. 2, 2:409 (1886). Navarretia matthewsii Gov., Contrib. U. S. Nat. 

 Herb. 4:153 (1893)". 



12. LOESELIA L. 



Herbs, sometimes woody below. Leaves alternate, rarely somewhat opposite, 

 entire or often acutely dentate. Flowers terminal on the branchlets, solitary in 

 the axils or in axillary clusters, the bracts conspicuous and imbricated or in ours 

 hardly any. Calyx tubular or campanulate, tlie intervals broadly scarious to the 

 base beneath the sinuses (in ours) . Corolla narrowly funnelform, the limb 5-lobed 

 but cleft more deeply on the sides so as to be, usually, bilabiate or somewhat bilabi- 

 ate. Stamens glabrous, more or less exserted, ec^ually inserted high or low in the 

 throat. Ovary glabrous, its cells with 1 or 2 or many ovules; stjde glabrous, ex- 

 serted. — Species 12, North and South America. ( Johann Loesel, died 1655, author 

 of a Flora Prussica.) 



1. L. tenuifolia Gray. Perennial, the stems numerous, erect from a woody 

 base, 5 to 18 inches high ; herbage puberulent ; flowers terminal on the branchlets, 

 solitary or in 2 to 4-flowered rather loose clusters ; leaves narrowly linear, cuspidate, 



9 to 13 lines long, entire or the lowest pinnately parted into 1 pair or 2 remote pairs 

 of short subulate lobes; cahrx-lobes lanceolate, cuspidate, ^4 to V:! as long as the 

 tube; corolla scarlet, tubular with somewhat dilated throat, S^^o to 13 lines long, 

 the proper tube about 3 lines long ; corolla-lobes sometimes quite regular, 3-dentate ; 

 stamens and style conspicuously exserted ; ovary cells with about 12 ovules. 



Canon sides and dry open ridges, 200 to 2500 feet : mountains on the north and 

 west sides of the Colorado Desert. South to Lower California. May-June. 



Locs. — Mammoth Wash, betw. Ogilby and Niland, Evebpi Gray ; Mountain Sprs. (summit of 

 grade above), e. San Diego Co., Jepson 11,809; Carriso Gorge (head of), We(ks; Jacumba (3 mi. 

 e.), Frndge. 



Refs. — LoESELiA tenuifolia Grav, Proc. Am. Acad. 11:86 (1876), tvpe loc. Great Cafion, 

 Cantillas Mts., L. Cal., Dunn cf- Palmer. Gdia tenuifolia Gray, Syn. Fl. ed."2, 2:411 (1886). 



