434 POLEMONIACEAE 



inserted on throat, filaments adnate to a point just below the sinuses of the lobes, anthers sagit- 

 tate, white, exserted, about half as long as corolla-lobes ; style and stigma exserted ; capsule 

 ellipsoid, included, locules ridged, base of style persistent, splitting with the capsule, locules 

 several-seeded. 



Sandy mesas and chaparral-covered slopes, southern Monterey and San Benito Counties, in the Coast Ranges 

 and Inyo County in the Sierra Nevada, California, south to Lower California. Type locality: "California." Col- 

 lected by Douglas. June-Aug. 



Eriastrum densifolium subsp. elongatum (Benth.) H. L. Mason, Madrono 8: 73. 1945. iHuegelia elongata 

 Benth. Bot. Reg. 19: under pi. 1622. 1833; Cilia elongata Steudel, Norn. ed. 2. 1: 683. 1840; Navarretia dcnsi- 

 folia subsp. elongata Brand, Pflanzenreich 4230; I65. 1907; Cilia densifolia var. elongata A. Gray ex Brand 

 loc. cit.) Leaves more rigid, usually white-canescent ; corolla 12-20 mm. long, lobes oblanceolate to narrowly 

 spatulate; less woody than typical Eriastrum densifolium. Monterey and San Benito Counties and the Sierra 

 Nevada from Inyo County south to southern California and Lower California. Type locality: "California," 

 presumably southern Monterey County. Collected by Douglas. 



Eriastrum densifolium subsp. austromontanum (Craig) H. L. Mason^ Madrofio 8: 74. 1945. (Cilia 

 densifolia var. austromontana Craig, Bull. Torrey Club 61: 391. 1934; Huegelia densifolia subsp. austromontana 

 Ewan, Bull. Torrey Club 64: 520. 1937; Huegelia densifolia var. austromontana Jepson, Fl. Calif. 3: 162. 1943.) 

 Differs from the above in its more elaborate bracts and more complex leaf-pattern, in its lower stature, and in 

 being less woolly. Higher mountains of southern California and northern Lower California north to Santa Barbara 

 and Inyo Counties, California. Type locality: near Nellie, Palomar Mountains, San Diego County. 



Eriastrum densifolium subsp. mohavensis (Craig) H. L. Mason, Madrono 8: 74. 1945. {Cilia densifolia 

 var. mohavensis Craig, Bull. Torrey Club 61 : 392. 1934; Huegelia densifolia var. mohavensis Jepson, Fl. Calif. 

 3: 162. 1943.) Leaves with a broad rachis and short spinescent teeth; bracts lanceolate-dentate. Mojave Desert, 

 San Bernardino and Inyo Counties, California. Type locality: "sand dunes between Rosamond and Mohave, Kern 

 Co., California." 



Eriastrum densifolium subsp. sanctorum (Milliken) H. L. Mason, Madrofio 8: 75. 1945. (Cilia densi- 

 folia var. sanctora Milliken, Univ. Calif. Pub. Bot. 2: 39. 1904; Huegelia densifolia var. sanctora Jepson, Man. 

 Fl. PI. Calif. 792. 1925.) Corolla-tube three times as long as calyx, 25-30 mm. long. Washes and bordering 

 plains of the Santa Ana River and its tributaries. Type locality: Santa Ana River near Riverside, southern 

 California. 



2. Eriastrum pluriflorum (Heller) H. L. Mason. Many-flowered Eriastrum. 



Fig. 3961. 



Cilia virgata var. floribunda A. Gray, Proc. Amer. Acad. 8: 272. 1870. Not G. fioribunda A. Gray. 



Cilia plurifiora Heller, Muhlenbergia 2: 113. 1906. 



Navarretia virgata var. fioribunda Brand, Pflanzenreich 42^": 168. 1907. 



Gilia Brauntonii Jepson & Mason in Jepson, Fl. Econ. PI. Calif. 130. 1924. 



Huegelia Brauntonii Jepson, Man. Fl. PI. Calif. 793. 1925. 



Huegelia plurifiora Ewan, Bull. Torrey Club 64: 520. 1937. 



Eriastrum pluriflorum H. L. Mason, Madrono 8: 75. 1945. 



Erect annual, 5-40 cm. high, simple or much-branched, lightly floccose to glabrate, densely 

 arachnoid in inflorescence. Leaves pinnately dissected into 3-11 linear-filiform lobes rarely 

 simple and entire, 1-6 cm. long; flowers in dense heads at the ends of the numerous or less com- 

 monly few branches; calyx 7-11 mm. long, cleft into linear, unequal lobes, densely arachnoid, 

 sinus with a membrane ; corolla funnelform, regular to somewhat irregular, 1-2 cm. long, blue, 

 sometimes the throat and tube yellow, or wholly blue, tube puberulent ; stamens inserted in 

 sinuses, 5-6 mm. long, conspicuously exserted, anthers sagittate, white or yellow, 2-2.5 mm. 

 long ; stigma e.xserted ; capsule 4 mm. long, 2 mm. wide ; locules 2-3-seeded. 



Hills bordering the San Joaquin Valley, California. Type locality: Sunset, Kern County, California. April- 

 July. 



Eriastrum pluriflorum subsp. Sherman-Hoytiae (Craig) H. L. Mason, Madrofio 8: 75. 1945. (Cilia Sher- 

 man-Hoytiae Craig, Bull. Torrey Club 61: 415. 1934.) Short, tufted desert annual, stems 3-4 mm. long. Leaf- 

 lobes very short, sometimes reduced to teeth; corolla-lobes over half as broad; stamens 3-4 mm. long. 

 Centers in the western Mojave Desert, California. Type locality: 10 miles south of Muroc, California. 



3. Eriastrum diffusum (A. Gray) H. L. Mason. Diffuse Eriastrum. Fig. 3962. 



Cilia filifolia var. diffusa A. Gray, Proc. Amer. Acad. 8: 272. 1870. 



Navarretia filifolia var. diffusa Brand, Pflanzenreich 4=^: 167. 1907. 



Welu'itschia diffusa Rydb. Fl. Rocky Mts. 688. 1917. 



Welwitschia filifolia diffusa Tidestrom, Proc. Biol. Soc. Wash. 48: 42. 1935. 



Huegelia diffusa Jepson, Fl. Calif. 3: 167. 1943. 



Eriastrum diffusum H. L. Mason, Madrofio 8: 76. 1945. 



Diffusely branched annual, 5-15 cm. high. Leaves simple, linear to 3-5-parted, 0.5-2 cm. 

 long ; bracts i-7 lobed, lobes arched or slightly recurved ; calyx 5-7 mm. long, lobes unequal, 

 acerose, lower two-thirds filled with membrane; corolla subregular, 7-9 mm. long, tube 4-5 mm., 

 throat 0.5-1.5 mm., lobes 2-2.5 mm., tube and throat white or yellow, lobes blue; stamens un- 

 equal or equal, 1-2 mm. long, inserted in middle of throat and exceeding throat, anthers cordate- 

 sagittate, 0.5 mm. long; stigma 1 mm. long, exserted from throat; capsule 3-4 mm. long, locules 

 2-3-seeded. 



Throughout the desert regions of the southwest from southern California and southern Nevada south to 

 Lower California and Sonora, east to Utah, Texas, and northern Mexico. Type locality: Fort Mohave, Arizona. 

 March-May. 



Eriastrum diffusum subsp. Jonesii H. L. Mason, Madrofio 8: 77. 1945. (Cilia eremica var. Yageri Craig, 

 Bull. Torrey Club 61: 420. 1934, as to lectotype only, not C. virgata var. Yageri M. E. Jones.) Plant 3-15 cm. 

 high, diffusely branched, floccose-lanate throughout. Leaves simple, linear, to 3-5-parted; flowers in compact 

 heads, corolla slightly irregular, 10-12 mm. long. lobes blue, tube white or yellow; stamens 2-3 mm. long, equal 

 or unequal, inserted about midway on throat; anthers cordate to oval, 0.7-1 mm. long. Throughout the desert 

 area of Arizona south to Sonora. Type locality: Pima County, Arizona. 



Eriastrum diffusum subsp. Harwoodii (Craig) H. L. Mason, Madrono 8: 77. 1945. (Cilia filifolia var. 

 Harwoodn Craig, Bull. Torrey Club 61: 424. 1934; Huegelia diffusa var. Harwoodii Jepson, Fl. Calif. 3: 167. 

 1943.) Heads densely lanate-floccose; corolla-lobes apiculate; stamens inserted midway on the throat. Eastern 

 Mojave Desert. Type locality: Blythe Junction, Riverside County, California. 



