496 HYDROPHYLLACEAE 



stems weak, diffuse, simple or branching. Basal leaves ovate to deltoid, 3-8 cm. long, 2-6 cm. 

 broad, shallowly lobed, the lobes serrate, sometimes a small pair of discrete leaflets occurs at the 

 base, the petiole equaling or shorter than the blade ; cauline leaves like the basal ; flowers rather 

 numerous, subsessile in short, dense, solitary or geminate, scattered cymes, the cymes 2-10 cm. 

 long, erect in fruit ; calyx-lobes spatulate, 4-6 cm. long, 1-3 mm. broad, unequal, densely hispid, 

 little enlarged in fruit ; corolla dull white, broadly campanulate, deciduous, 5-7 mm. long and 

 broad, the lobes obovate, 2-3 mm. long, the whole longer than the calyx ; stamens exserted, 5-10 

 mm. long, the filaments glabrous, the anthers oval, about 0.8 mm. long; scales semi-ovate, free 

 at apex ; style exserted, 8-12 mm. long, hispidulous, cleft three-fourths ; capsule globose, 2-3 mm. 

 long, hispid; seeds 2-6, oblong-ovoid, carinate, 2-2.5 mm. long, nearly black, foveolate. 



Bluffs and woods, Transition Zone; coastal, from southwestern Oregon to San Luis Obispo County, California. 

 Type locality : San Francisco. April-June. 



16. Phacelia Rattanii A. Gray. Rattan's Phacelia. Fig. 4075. 



Phacelia Rattanii A. Gray, Proc. Amer. Acad. 20: 302. 1885. 

 Phacelia fiaccida Elmer, Bot. Gaz. 41 : 323. 1906. 



Annual, 1-6 dm. tall from a taproot, sparsely bristly-hispid and finely pubescent throughout ; 

 stems weak, diffuse, simple or branching. Basal leaves oval or ovate, 2.5-10 cm. long, 1 .5-8.5 cm. 

 broad, shallowly lobed, the lobes crenate or dentate, the petiole about equaling the blade ; cauline 

 leaves like the basal ; flowers few, pedicellate, in lax, scattered, short cymes, the cymes 2-6 cm. 

 long, erect in fruit ; calyx-lobes spatulate, 3-4 mm. long, 1-2 mm. broad, unequal, somewhat en- 

 larged in fruit ; corolla white or bluish, narrowly campanulate, deciduous, 4-5 mm. long, 2^ mm. 

 broad, the lobes oval, 1-1.5 mm. long, the whole slightly exceeding the calyx; stamens included, 

 2-3 mm. long, the filaments pubescent, the anthers globose-oval, 0.3 mm. long; scales lanceolate, 

 entire, wholly adnate ; style included, 2-3 mm. long, glabrous, cleft about to the middle; capsule 

 globose, 2-2.5 mm. long, pubescent; seeds usually 2, oblong-ovoid, 2 mm. long, scarcely carinate, 

 dark brown, rather coarsely foveolate. 



Brushy slopes and stream banks, Transition Zone; southwestern Oregon, east to southwestern Idaho and south, 

 to northern and central California. Type locality: Lake County and northward in California. May-July. 



17. Phacelia ciliata Benth. Great Valley Phacelia. Fig. 4076. 



Phacelia ciliata Benth. Trans. Linn. Soc. 17: 280. 1835. 



Phacelia accnthomitithoidcs Elmer, Bot. Gaz. 41 : 309. 1906. 



Phacelia ciliata var. opaca J. T. Howell, Leaflets West. Bot. 1 : 221. 1936. 



Annual, 1 .5-6 dm. tall from a slender taproot, hispidulous throughout, the inflorescence hispid; 

 stems numerous, ascending, branching. Basal leaves oblong or ovate, 4-10 cm. long, 1.5-4 cm. 

 broad, pinnate or pinnatifid, the oblong divisions toothed or incised, the petiole usually much 

 shorter than the blade ; cauline leaves like the basal but short-petiolate or sessile ; flowers rather 

 numerous, subsessile in terminal clusters of solitary or geminate cymes, the cymes simple or few- 

 branched, 3-10 cm. long, erect or spreading in fruit; calyx-lobes broadly lanceolate, 4-6 mm. long, 

 1-2 mm. broad, densely hispid-ciliate, in fruit ovate, subcoriaceous, scarious (rarely opaque), and 

 venulous, loosely enveloping the mature capsule, 8-10 mm. long, 2-5 mm. broad ; corolla bright 

 blue with a paler center, pelviform, deciduous, 8-12 mm. long and broad, the lobes obovate, 3-6 mm. 

 long, the whole much longer than the calyx ; stamens about as long as the corolla or a little ex- 

 serted, 9-13 mm. long, the filaments glabrous, the anthers oval, 1 mm. long; scales suborbicular, 

 partly free, spreading ; style 6-8 mm. long, puberulent at base, cleft three-fourths ; capsule globose- 

 ovoid, 4-5 mm. long, hispidulous, mucronate ; seeds usually 4, cylindrical-oblong, 2.5-3.5 mm. 

 long, dark brown, foveolate. 



Gravelly slopes and cultivated fields, Sonoran Zones; San Joaquin Valley, California, to Lower California; 

 widely spread throughout the Sacramento \"alley and elsewhere in grainfields and orchards. Type locality: "Cali- 

 fornia." Collected by Dougles. March-May. 



18. Phacelia thermalis Greene. Hot Spring Phacelia. Fig. 4077. 



Phacelia thermalis Greene, Erythea 3: 66. 1895. 



Phacelia firtnomarginata A. Nt\s. Bot. Gaz. 54: 143. 1912. 



Annual, 0.5-3 dm. tall from a taproot, thinly short-pubescent and somewhat hispid, especially 

 in the inflorescence ; stems few to numerous, ascending, branching from base. Basal leaves oblong 

 to ovate, 3-6 cm. long, 1-3 cm. broad, pinnate or pinnatifid (sometimes lyrately pinnatilid). the 

 oblong to obovate divisions crenate-dentate, the petiole usually much shorter than the blade ; 

 cauline leaves like the basal ; flowers rather numerous, subsessile in dense cymes, the cymes simple 

 or few-branched, 3-15 cm. long, erect in fruit; calyx-lobes lanceolate, 3-5 mm. long, 1-2 mm. 

 broad, densely hispid-ciliate, in fruit oblong-lanceolate, subcoriaceous and venulous, ultimately 

 more or less scarious, 7-9 mm. long, 2-3 mm. broad ; corolla white or pale blue, campanulate- 

 funnelform, deciduous, 3-4 mm. long, 2-3 mm. broad, the lobes obovate, 1-1.5 mm. long, the 

 whole about as long as the calyx; stamens included, 1.5-2 mm. long, the filaments glabrous, the 

 anthers oval, 0.25 mm. long; scales oblanceolate, adnate; style included, about 2 mm. long, cleft 

 two-thirds ; capsule globose-ovoid, 3-4 mm. long, pubescent ; seeds usually 4, cylindrical-oblong, 

 2-2.5 mm. long, dark brown, foveolate. 



Moist soil of hillsides, Transition Zone; southeastern Oregon and adjacent Idaho to northeastern California. 

 Type locality: Little Hot Springs Valley, Modoc County, California. June-July. 



