MALLOW FAMILY 101 



bracts 1.5-2.5 cm. long, palmately 5-7-parted, the segments filiform, hirsute; calyx-lobes lan- 

 ceolate-subulate, 8-15 mm. long; petals rose to deep purple, with or without a deeper spot near 

 the base, 1.5-3 cm. long; outer phalanges of stamineal column 5, dilated; carpels depressed, 

 subreniform, rugulose dorsally and on the sides, dorsal midnerve obvious. 



Grassy hillsides and valleys, particularly on serpentine outcrops. Upper Sonoran Zone; Humboldt and 

 Shasta Counties southward to Mariposa and San Luis Obispo Counties, California. Type locality: California. 

 April-June. 



2. Sidalcea hirsuta A. Gray. Hairy Sidalcea. Fig. 3197. 



Sidalcea delphinifolia A. Gray ex Benth. PI. Hartw. 300. 1848. Not Sida delphinifolia Nutt. 1838. 

 Sidalcea hirsuta A. Gray, Smiths. Contr. 3°: 16. 1852. 



Strict or ascendingly branched annual 1-8 dm. high, usually glabrous below, soft-hirsute 

 above. Basal leaves round-cordate, crenately lobed, 1-2.5 cm. in diameter; cauline leaves 3-8 

 cm. broad, 7-9-parted, the segments narrowly linear, entire, acute, hirsute ; petioles 1-5 cm. long, 

 hirsute ; stipules linear-subulate, purplish, 3-10 mm. long, ciliate ; inflorescence densely spicate, 

 5-20 cm. long, tawny-hirsute ; bracts bifid, segments linear ; calyx tawny-hirsute and stellate- 

 tomentose, the lobes triangular-lanceolate, acuminate, 8-15 mm. long; petals 1-2 cm. long, rose- 

 purple, emarginate ; outer stamineal phalanges dilated, shorter than the inner ; carpels 3-4 mm. 

 high, favose-reticulate, stellate-pubescent, beak erect, 1-2 mm. high. 



Margins of vernal pools and rills. Lower Sonoran Zone; Butte County to Mariposa County, California. 

 Type locality: temporary rain pools of the Sacramento Valley. April-June. 



3. Sidalcea Keckii Wiggins. Keek's Sidalcea. Fig. 3198. 



Sidalcea Keckii Wiggins, Contr. Dudley Herb. 3: 56. pi. 13. figs. 2-6. 1940. 



Annual with erect to decumbent hirsute stems 1.5-3.5 dm. high. Basal leaves orbicular, 



1.5-2.5 cm. wide, shallowly 7-9-lobed, the lobes irregularly crenate-toothed, stellate-hirsute; 



stipules filiform, 3-5 mm. long; petioles slender, 2^.5 cm. long, sparsely stellate-hirsute; cauline 



leaves deeply divided into 3-7 oblanceolate, irregularly 3-7-toothed lobes ; inflorescence lax, 



racemose, 5-12-flowered ; bracts 5-7 mm. long, bifid to the base, the lobes filiform ; pedicels 2-8 



mm. long ; calyx deeply cleft, densely stellate-hirsute at the base, less densely so on the narrowly 



lanceolate-attenuate lobes, these 9-11 mm. long, 2 mm. wide at the base; petals pale pink, obovate, 



emarginate, 1-22 mm. long ; stamineal column 3-5 mm. high, hirsutulous, distinctly dilated above ; 



style-branches 4-5 ; carpels 4-5, broadly obovoid, 3-4 mm. high, favose-reticulate, beakless, the 



angles rounded. 



Grassy clay hillsides, Upper Sonoran Zone; western slopes of the foothills in the vicinity of White River, 

 Tulare County, California, the type locality. April-May. 



4. Sidalcea calycosa M. E. Jones. Annual Sidalcea. Fig. 3199. 



Sidalcea calycosa M. E. Jones, Amer. Nat. 17: 875. 1883. 

 Sidalcea sulcata Curran ex Greene. Bull. Calif. Acad. 1 : 79. 1885. 



Annual, erect or ascending, 3-6 dm. high, glabrous below, sparsely hirsute above. Lower 

 leaves 1 .5-2 cm. broad, round-reniform, crenate, obscurely lobed, glabrous ; upper leaves 3-5 cm. 

 broad, digitately 5-parted, the divisions spatulate-linear, entire; petioles 1-6 cm. long; stipules 

 linear to ovate-lanceolate, 3-8 mm. long ; inflorescence spicate, many-flowered, sparsely hirsute ; 

 bracts bifid, the lobes ovate-lanceolate, 4-10 mm. long; calyx 5-8 mm. long, the lobes broadly 

 ovate-lanceolate, abruptly acuminate; petals 1.5-2 cm. long, obovate, emarginate, purple; outer 

 phalanges of stamineal column slightly stouter than inner, dilated; carpels reniform, often pur- 

 plish, strongly striate-grooved dorsally, finely reticulate on the seeds ; seeds sparsely puberulent 

 with very short, simple hairs. 



Moist grassy places in the foothills. Upper Sonoran and Transition Zones; North Coast Ranges and the 

 Sierra Nevada from Shasta County to Mariposa County, and in the Sacramento Valley, California. Type lo- 

 cality: Duncan's Mills, Sonoma County. March-June. 



5. Sidalcea Hartwegii A. Gray. Hartweg's Sidalcea. Fig. 3200. 



Sidalcea Hart-wepii A. Gray ex Benth. PI. Hartw. 300. 1848. 



Sidalcea tenella Greene, Bull. Calif. Acad. 1 : 7. 1884. 



Sidalcea Hartwegii var. tenella A. Gray, Proc. Amer. Acad. 22: 286. 1887. 



Erect,_ slender, paniculately branching annual, 1-5 dm. high, sparsely pubescent with soft 

 simple hairs, or glabrate below. Basal leaves small, shallowly 5-7-lobed, caducous ; upper leaves 

 2-4 cm. broad, digitately 3-7-parted, the divisions linear, entire, spatulate and shallowly 2-3- 

 lobed at the apex ; stipules 1-2 mm. long ; inflorescence racemose, few-flowered, closely stellate- 

 puberulent; bracts 1.5-2 mm. long, bidentate or bifid; calyx deeply cleft, the lobes lanceolate, 

 acuminate, 6-8 mm. long; petals 10-20 mm. long, rose-purple, retuse; stamineal column slender, 

 hirsutulous below, exterior phalanges approximate to the inner at the apex; carpels reniform, 

 beakless or weakly beaked, rugose-reticulate. 



Grassy flats and hillsides. Upper Sonoran and Transition Zones; Sacramento Valley and foothills of the 

 Sierra Nevada and the Coast Ranges from Shasta and Mendocino Counties to San Francisco Bay region and 

 Mariposa County, California. Type locality: fields of Butte County. April-June. 



6. Sidalcea rhizomata Jepson. Point Reyes Sidalcea. Fig. 3201. 



Sidalcea rhizomata Jepson, Man. Fl. PI. Calif. 629. 1925. 



Perennial, stems succulent, erect or ascending, 3^.5 dm. high with the rhizomatous bases 



