500 MALVACEAE 



or less rugose, becoming green above, % to 2 inches long, on petioles i/4 to ll^ 

 inches long; flowers in dense or head-like clusters sessile in the upper axils and at 

 the ends of the branches, forming long interrupted spikes; bractlets linear-filiform, 

 equaling the rusty-tomentose calyx; petals rose-color, 7 to 9 lines long; fruit 2 to 

 2^2 lines wide, the carpels tomentulose on back, at length glabrate. 



Bushy canons in the foothills, 50 to 800 feet: Santa Cruz Mts. (mainly or 

 wholly east slope) ; west slope "Sit. Hamilton Range. May- July. 



Loos. — Belmont (w. of), San Mateo Co., Greene; Crystal Sprs., San Mateo Co., Henry 

 Edwards; Stanford, C. F. Baler 3438; hills n. of Big Basin, Santa Cruz Mts., ace. C. A. Reed; 

 Alum Eock, Mt. Hamilton foothills, C. A. Anderson. 



Eefs. — Sphaeralcea arcuata Arthur, Torreya 21:11 (1921); Jepson, Man. 634 (1925). 

 Malveopsis arcuata Greene, Man. Reg:. S. F. Bay (36 (1894), type loc. Coast Range back of Bel- 

 mont (San Mateo Co.), Greene. Malvastrum viarrubioides Greene, Fl. Fr. 109 (1891) ; not M. 

 marrubioides D. & H. (1855). Malvosirum arcuatum Rob.; Gray, Syn. Fl. P:311 (1897) ; Jepson, 

 Fl. W. Mid. Cal. 242 (1901), ed. 2, 261 (1911). Malacothamnus arcuata Greene, Lflts. 1:208 

 (1906). 



10. S. fremontii Jepson. White-coat Mallow. Stems stout, woody at base, 

 2 to 5 feet high; herbage densely white-tomentose; leaf -blades very thick, orbicu- 

 lar-ovate, not lobed or shallowly 5 to 7-lobed, crenate, IV2 to 4 inches broad, on 

 petioles I/2 to 1 inch long; flower-clusters somewhat head-like or close, the heads 

 sessile in the axils or short-peduncled and thus interrupted-spicate at summit of 

 stem; calyx globose-ovate in bud, conspicuously and very densely and closely 

 woolly, only the subulate tips of the lobes visible, almost equaled by the 3 linear- 

 setaceous bractlets of the involucre; corolla pale pink or rose-color, aging white- 

 scarious, 7 to 8 lines long; carpels smooth, promptly dehiscent. 



Open hills, 200 to 1500 feet : inner North Coast Range foothills in Tehama Co.; 

 Sierra Nevada foothills from Amador Co. to Tulare Co. Apr.- Aug. 



Locs. — Inner North Coast Range : Yollo Bolly foothills, Tehama Co., T. Brandegee. Sierra 

 Nevada foothills: lone, Amador Co., Braunton 1144; Gwiu Mine, Calaveras Co., Jepson 1765; 

 betAV. Watson Spr. and Cedar Creek, North Fork Kaweah River, Jepson 597; Spriiigville, Tulare 

 Co., Purpus 5664. The number of known localities is few, and in general there are relatively few 

 individuals in a locality. 



Var. cercophora Jepson. Diablo Mallow. Calyx-buds globose but attenuate at apex into 

 a short point; calyx-lobes attenuate-caudate. — Mt. Diablo and Mt. Hamilton ranges: Norton- 

 vUle, K. Fenley; Mt. Diablo, Greene; Corral Hollow, Brewer 1223; Arroyo del Valle, Greene; 

 Calaveras Valley, E. Brooks. 



Var. exfibulosa Jepson var. n. Many-stemmed shrub 4 to 5 feet high ; leaves densely stellate- 

 pubescent, but not woolly, greener above ; cymes borne on peduncles 2 to 9 lines long or the upper- 

 most flowers sessile ; flower-buds subglobose ; bractlets narrowly linear, ovate-dilated at base or 

 at least a little dilated. — (Folia dense stellati-pubescentia ; pedunculi cymae 2-9 lin. longi; ala- 

 bastria subglobosa; bracteolae lineares, ad basin dilatatae). — Western Yolo Co.: Putah Creek, 

 in gravel bed, near Winters, Jepson 16,741 (type) ; Capay Valley, Lemmon. The relationships 

 of this variety are uncertain. The cymes in the species form dense clusters closely sessile against 

 the stem axis. In this variety the cymes are very loose and mostly peduncled. It is evergreen. 



Refs. — Sphaeralcea fremontii Jepson, Man. 633 (1925). Malvastrum fremontii Torr. ; 

 Gray, Mem. Am. Acad. 4:21 (1849), type from "interior of California", Fremont; Jepson, Fl. W. 

 Mid. Cal. 242 (1901), ed. 2, 261 (1911). Sphaeralcea lindheimeri Wats.; B. & W. Bot. Cal. 

 1:86 (1876), in part. M. viarrubioides D. & H. Jour. Acad. Phila. ser. 2, 3:38 (1854), type loc. 

 Millerton, San Joaquin River, Sierra Nevada foothills, Heermann ; Pac. R. Rep. 5:6, pi. 2 (1855) ; 

 leaf -blades ovate, dentate ; pubescence perhaps less dense. The Lower California specimen (Santo 

 Tomas, Orcuti), cited in Syn. Fl. (1^:311), is S. densiflora Jepson. Var. cercophora Jepson, 

 Man. 634 (1925). Malvastrum fremontii var. cercophorum Rob.; Gray, Syn. Fl. 1^:311 (1895), 

 type loc. Arroyo del Valle, Alameda Co., Greene; Jepson, Fl. W. Mid. Cal. 242 (1901), ed. 2, 261 

 (1911). Var. EXFiBULOSA Jepson. 



11. S. fasciculata Arthur. LIesa Mallow. Stems 3 to 8 feet high, woody 

 below, with long slender wand-like branches; pubescence short and close; leaf- 

 blades round-ovate, dentate, not lobed or obscurely lobed or pentagonal, mostly 

 truncate or subcordate at base, % to ll^ (or 21^) inches long; petioles 5 to 8 lines 

 long; buds subacute; flowers in sessile or short-peduncled, often head-like, clusters, 

 the clusters distant, or at least not crowded, but virgately racemose, the inflores- 



