gg MALVACEAE. Sj'hoeralcea. 



on slender elongated pedicels : calyx-lobes lanceolate, acuminate, the linear bractlets 

 pei-sistent : petals obovato, purple, 'J to 5 lines long: fruit 2^ lines broad; carpels 

 12 to 15, orbicular, glabrous, indulii.scent, transversitly rugose-reticulated, the sides 

 smot)th and contiguous except near the margin. — Hot. Ives Colorado Exp. 8. 



Dry iiliiiiis, MciihkI Cuimty, iiiul Houthward, ruiij^ing oust to lUuh ; msar rynmiiil I,iikc, 

 Novuda (Leminon), and pioUilily along llio cntiro oasloru baso of tho Sierra Novadu. 



5. SPH^RALCEA, St. liiluiie. 

 Differing from Malvdstrum only in the 2-ovuled cells of the ovary, the lower 

 ovule ascending, the ui)[ier pendulous and often abortive in fruit. — Perennials. 



Alnmt '20 sficcio.-! aio rcfcrrud to the ^unna, all Amerinui and S. AlViiian. 



1. S. Emoryi, Toir. Resembling Malvastrum Munroanmn. Stems 1 to 2 feet 

 high : leaves ovate-cordate, usually obtusely 3 — 5-lobed, crenate : iullorescence and 

 fruit as in that species, excepting the 2-ovuled cells of the ovary. — *S'. Emoryi & 

 incana, Torrey in Gray, PI. Fendl. 23. aS'. Wrightii, Gray, PI. Wright, ii. 21. 



Frequent on the eastern side of the Sierra Nevada fiom Nortliern Nevada to Utah and Mexico; 

 San Felipe in S. California (Thurber) and San Diego, Cleveland. 



S. suu'iiuuEA, Watson, Proc. Am. Acad. xi. 125, of Guadalupe lalaud, Palmer, is more 

 tomentose and lias the inllnrescenco usually much more paniculate and ditfuse : petals sulphur- 

 yellow, tinged with pink, villous at the baso of the claw, 5 to 6 lines long: fruit globose. 



2. S. Lindheimeri, Gmy. Stout, tlensely tomentose, 2 or 3 feet high, erect or 

 decumbent at base : leaves broadly ovate, cordate at base, obscurely 5-lobed with 

 the lobes rounded and slightly crenate, 2 inches long, ecpialling or exceeding the 

 petioles : flowers small, in a narrow raceme, often nearly sessile : calyx with acumi- 

 nate lobes, usually very densely tomentose : fruit prominent ; carpels 1 J lines long, 

 rounded above, projecting more over the axis than in the last, the sides transversely 

 rugose belo\v. — PI. Lindh. 162. Malvastrum Freniontii, Torrey, 1. c. 21. 



Central California (/VivHfxiO ; Corral Hollow, fircwcr : tho specimens aro apparently identical 

 with tho siiecicrt of tho Uio Oranile Valloy to which they aro hero referred. 



3. S. angustifolia, Spach. Slender, ovm-X, 2 to 4 foot high, hoary-pubescent : 

 leaves oblong to narrowly lanceolate, 2 inches long, usually subcordato or rounded 

 at base., often somewhat lobed below, crenate or rather coarsely toothed, on short 

 petioles : ilowers small, in a naked or often leafy narrow raceme : calyx 2 to 3 lines 

 long, with acute or acuminate lobes : fruit subglobose with a central depression, 

 pubescent ; carpels 1 1 to 2 lines long, oblong, blunt or sometimes sharply beaked at 

 the apex, reticulate on the sides below. — Malva angustifolia, Cav. Diss. i. 64, t. 20; 

 Bot. Mag. t. 2839. 



At Fort Mohave (Cooper), and frequent eastward to the Rio Grande and in Mexico. 



6. SIDA, Linn. 



Calyx usually without bractlets. Stamineal tube siinple, antheriferous at the 



summit. Petals oblique. Styles 5 or more, witli capitate stigmas. Carpels as 



many, 1-ovuled, indehiscent or 2-valved, at length separating from the axis. Seed 



pendulous or horizontal. — Mostly softly tomentose ; flowers yellow or whitish. 



About 80 species, of which 50 aro American, most abundant in subtropical regions. A few 

 species are very widely distributed, among which S. rhombifnlia and 6'. airpinifolia aj)proach the 

 southern borders of the State, and other species are fri;([UeMt in Northern Mexico and the adjacent 

 territory. Tlie one Californian species, having a bracteolate calyx, would belong to Malvastrum 

 but for the pendulous ovule. 



] . S. hederacea, Torr. Stems decumbent, from a perennial root, leafy, a foot 

 long or less : leaves roniform, about an inch broad, very oblique, serrate or crenate, 

 shortly petioled : Ilowers in short axillary panicles or solitary, tho pedicels at h'.ngth 



