424 POLEMONIACEAE 



18. Linanthus dianthiflorus (Benth.) Greene. Fringed Linanthus. Fig. 3943. 



Fenzlia dianthiftora Benth. Bot. Reg. 19: under pi. 1622. 1833. 



Cilia dianthoides Endl. Atakt. Bot. pi. 29. 1833. 



Cilia Fenzlia Steudel, Nom. ed. 2. 1 : 683. 1840. 



Cilia dianthiftora Steudel ex Benth. in A. DC. Prod. 9: 314. 1845. 



Fenzlia speciosa Nutt. Journ. Acad. Phila. II. 1: 157. 1848. 



Fenzlia concinna Nutt. loc. cit. 



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



Cilia dianthoides alba Orcutt, W. Amer. Sci. 7: 132. 1891. 



Linanthus dianthiflorus Greene, Pittonia 2: 254. 1892. 



Erect, decumbent or prostrate annual, 3-15 cm. high, stems simple or much-branched, 

 glabrous to puberulent or occasionally flocculent about the nodes. Leaves simple, entire, filiform, 

 5-30 mm. long; flowers solitary or in few-flowered leafy cymes, subsessile to short-pediceled ; 

 calyx deeply cleft, the lower half of the sinus filled with a hyaline membrane which ascends 

 the lobes a short distance above the pseudotube, tips of lobes naked; corolla short-funnelform, 

 10-25 mm. long, lilac, pink or white with yellow throat, tube shorter than throat, puberulent 

 within at insertion of stamens, lobes longer than tube and throat, obovate, margins denticulate- 

 erose; stamens inserted at base of throat and equaling throat, anthers disposed in orifice of 

 throat, filaments puberulent at base; stigma exserted, its lobes about equal the style; capsule 

 ellipsoid, many-seeded ; seeds sometimes margined on angles by a narrow flange. 



Sonoran Zones; Santa Barbara to San Diego, east to western Colorado Desert, California, south to Lower 

 California. Type locality: "California." Collected by Douglas. Feb.-May. 



Linanthus dianthiflorus subsp. farinosa (Brand) H. L. Mason. {Cilia dianthoides var. farinosa Brand, 

 Pflanzenreich 4*^: 131. 1907.) Differs in its spatulate calyx-lobes, shorter leaves, and farinose pubescence. 

 San Bernardino Valley and Oak Grove, San Diego County, California. Type locality: San Bernardino Valley, 

 San Bernardino County. 



19. Linanthus concinnus Milliken. San Gabriel Linanthus. Fig. 3944. 



Cilia modesta Hall, Bot. Gar. 31: 389. 1901. Not Phillippi 1895. 

 Linanthus concinnus Milliken, Univ. Calif. Pub. Bot. 2: 53. 1904. 

 Cilia Parryae var. modesta Brand, Pflanzenreich 4*=°: 145. 1907. 

 Cilia concinna Munz, Man. S. Calif. 396. 1935. 



Erect annual, 5-15 cm. high, stems divaricately to dichotomously branched, puberulent to 

 glabrate. Leaves 3-5-parted into linear segments, 8-15 mm. long, opposite below, subopposite 

 or alternate in the inflorescence, sparingly beset with weak white hairs; flowers on short 

 pedicels in terrninal cymes ; calyx deeply cleft into linear, sparsely pilose, somewhat s'pread- 

 ing lobes, the sinuses about two-thirds filled with a very conspicuous broad truncate hyaline 

 membrane forming a very evident pseudotube; corolla short-funnelform to campanulate, 10- 

 15 mm. long, white, except for yellow tube and throat, tube 1-2 mm. long, throat narrow, 

 6-8 mm. long, lobes 6-8 mm. long with 2 dark lines at the base ; stamens equally inserted at 

 the base of the throat, included, filaments hairy at the base and usually one longer than the 

 rest ; stigma included ; capsule ellipsoid, locules 2-3-seeded. 



Dry rocky slopes. Arid Transition Zone to Upper Sonoran Zone; San Gabriel Mountains, southern Califor- 

 nia. Type locality: San Antonio Mountains, southern California, 6,000 feet altitude. June-July. 



20. Linanthus demissum (A. Gray) Greene. Desert Linanthus. Fig. 3945. 



Cilia Dactytophyllum Torr. Ives Rep. 22. 1860. (Nomen confusum) 

 Cilia demissa A. Gray, Proc. Amer. Acad. 8: 263. 1870. 

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

 Linanthus demissus Greene, Pittonia 2: 257. 1892. 

 Linanthus Dactytophyllum Rydb. Fl. Rocky Mts. 698. 1917. 



Erect or widely spreading annual, 3-10 cm. high; stems dichotomously branched, pilose to 

 glabrate. Leaves 3-cleft into acicular lobes, rarely 5-cleft or entire, opposite below, alternate in 

 inflorescence ; flowers sessile to short-pediceled in a dichotomous cyme ; calyx deeply cleft into 

 lanceolate lobes, puberulent to pilose, lobes margined to tip by a hyaline membrane, rarely united 

 below to form a short pseudotube; corolla campanulate, white with 2 dark lines beneath each 

 lobe, 5-6 mm. long, tube very short, throat 4 times the tube, lobes subequaling tube and 

 throat ; stamens inserted at base of throat, about two-thirds as long as throat, included, filaments 

 glabrous, one longer than others ; stigma exceeding stamens ; capsule ellipsoid, locules several- 

 seeded. 



Sonoran Zones; Mojave Desert north to Inyo County, California, east to Utah and Arizona. Type locality: 

 "S.E. California and adjacent part of Arizona." Feb.-May. 



21. Linanthus Killipii H. L. Mason. Killip's Linanthus. Fig. 3946. 



Linanthus concinnus of Jepson, Fl. Calif. 3: 202, in part. 1943. 

 Linanthus Killipii H. L. Mason, Madroiio 9: 250. 1948. 



Erect annual, branching usually well above the base, basal internodes often congested, the 

 upper wiry, 1-8 times the leaves, puberulent to somewhat floccose at nodes ; cotyledons sessile, 

 ovate, narrowly perfoliate. Leaves palmately cleft into 5-7 linear lobes, 3-10 mm. long, puberu- 

 lent to glabrate below, hairy above with weak white hairs, the lower somewhat narrowly per- 

 foliate at base ; flowers sessile in 3-7 flowered, congested cymules ; calyx deeply cleft into linear 

 lobes, sparsely pilose below, sinuses over half-filled with a broad hyaline membrane which flanks 



