488 MALVACEAE 



3. S. hirsuta Gray. Wallow Checker. Stem erect, very stout, 1 to 2 feet 

 high, the brandies rather strictly ascending and ending in dense spikes; herbage 

 below glabrous or glabrate, the inflorescence rather densely hirsute; blades of 

 cauline loaves palmately or pedately divided into 7 to 9 narrowly linear and entire 

 acute divisions, the divisions 1 to 2 inches long; bracts divided into 2 filiform seg- 

 ments 2 to 4 lines long; spikes 2 to 4 (or 8) inches long; calyx densely cinereous- 

 pubescent and hirsute, the tube somewhat chartaceous; corolla rose-purple, i/^ to 

 1 inch long; petals erect, induplicate; carpels more or less hirsute, orbicular, not 

 incurved at maturity, alveolate-reticulated on the back and tipped at the central 

 apex with a bristly beak. 



Low wet but soon desiccated spots, 175 to 900 feet : Sierra Nevada foothills and 

 adjacent plains from Shasta Co. to Merced Co. ; eastern Mendocino Co. Apr.-May. 



Locs. — Sierra Nevada foothills and adjacent plains: Anderson, Shasta Co., Alice King; 

 Chico, B. M. Austin C93 ; Table Mt., Tuolumne Co., Jepson 6421; Jenny Lind, San Joaquin Co., 

 Gunnison; Merced (Ann. Mo. Bot. Card. 18:144). Eastern Mendocino Co.: Potter Valley, 

 Nettie Purpus. 



Eefs. — SiDAiiCEA HIRSUTA Gray, PI. "Wright. 1:16 (1852), type loc. Sacramento Valley, 

 Hartweg; Jepson, Man. 629 (1925). S. delphinifolia Gray; Benth. PI. Hartw. 300 (1848), ex- 

 cluding svnonym, type loc. Sacramento Valley, Hartweg 292. S. hartwegii Gray; B. & W. Bot. 

 Cal. 1:84" (1876) in part. 



4. S. calycosa Jones. Swamp Checker. Stem erect, slender, sparingly 

 branched, 1 to 3 feet high, arising from a creeping rootstock; herbage glabrous or 

 sparsely pubescent with scattered hairs; blades of basal leaves roundish, crenate 

 or crenately incised, % to I14 inches wide, long-petioled; blades of cauline leaves 

 divided into 6 or 7 divisions, the divisions oblanceolate to cuneate, entire or 3- 

 toothed; stipules usually purple, the lower ones linear-acuminate, the upper be- 

 coming ovate, serrate and scarious; bracts parted into 2 ovate or lanceolate lobes; 

 racemes spicate, few to many-flowered, elongated and loose after anthesis; calyx 

 large, loose, often purple-tinged or scarious, thinly hirsute; corolla light purple, 

 6 to 10 lines long; carpels striate-ridged on the back, commonly reticulate on the 

 sides, strongly incurved. 



Swampy ground, 20 to 1100 feet: Sonoma and Napa counties; Sierra Nevada 

 foothills from Shasta Co. to Calaveras Co. Apr.-July. 



Locs. — Coast Eanges just north of San Francisco Bay: Valley Ford, Sonoma Co., K. Brande- 

 gee ; Petaluma, Congdon; Napa, Sonne. Sierra Nevada foothills: Welch's, Shasta Co., M. S. 

 BaTcer 453 ; Clear Creek, Butte Co., Heller 11,381 ; Table Mt., Oroville, Heller 10,751 ; Sweetwater 

 Creek, Eldorado Co., K. Brandegee; Salt Springs Valley, Calaveras Co., Tracy 5645. 



Eefs. — SiDALCEA CALYCOSA Jones, Am. Nat. 17:875 (1883), type loc. Duncans Mills, Sonoma 

 Co., Jones; Jepson, Fl. W. Mid. Cal. 240 (1901), ed. 2, 259 (1911), Man. 629 (1925). S. sulcata 

 Curran; Greene, Bull. Cal. Acad. 1:79 (1885), near Folsom, Sacramento Co. and on Sweetwater 

 Creek, Eldorado Co., Curran; Jepson, Fl. W. Mid. Cal. 240 (1901), ed. 2, 259 (1911). 



5. S. rhizomata Jepson. King's Checker. Stems succulent, green or pur- 

 plish, erect or ascending, II/2 feet high, the decumbent or prostrate base rhizo- 

 matously rooting; herbage commonly glabrous or sparingly hirsute above; blades 

 of basal leaves 1 to 4 inches broad, crenatel}^ but shallowly incised, long-petioled; 

 blades of cauline leaves divided into 7 to 11 oblong-lanceolate or -oblanceolate divi- 

 sions ; stipules 4 to 8 lines long, broadly ovate, acuminate, or obtuse and toothed, 

 green or purple; bracts scarious to membranous, hairy, deeply 2-lobed (the lobes 

 ovate, acuminate), 4 to 6 lines long; flowers in spikes; spikes short, broad, dense, 

 % to 1^ inches long; calyx densely hairy, the hairs straw-color, long, simple; 

 calyx-lobes ovate, acuminate, scarious and purple-tipped, 3 to 6 lines long; corolla 

 light purple, % to 1 inch long; carpels purple-tinged, strongly striate-grooved on 

 the back and lightly reticulate on the sides, strongly incurved; beaks very slender, 

 soon deciduous. 



Marshes, 10 to 100 feet : Pt. Reyes Peninsula. May-July. 



