310 MALVACEAE. Malvastrum. 



aud more or less surpassed by the ovate-acuminate calyx-lobes : petals half inch long : car- 

 pels 15 to 20, firm-coriaceous, much compressed, brownish red at maturity, smooth, the 

 narrow back flat with acutish angles, hirsute at tup, where it is dorsally 2-gibbous aud veu- 

 trally subulate-aristate or pointed. — PI. Feudl. 21, PI. Liudh. pt. 2, 160, & Geu. 111. ii. 60, 

 t. 122. Malva uunintiaca, Scheele, 1. c. 469, therefore Malcastrum uurantiacum, Walp. Ann. 

 ii. 153.^ — Mesquit soil, Texas, Drummond, Wright, Lindheimer, &c. ; fl. summer. 

 * * * Peduncles or pedicels short: petals scarlet, copper-colored or sometimes rose- 

 colored : carpels wholly pointless : involucel of 2 or 3 very slender or rarely ovate bract- 

 lets, often deciduous, or obsolete. — Splutralceoides. Western perennials, some shrubby, 

 canescent or tomentose with many-rayed stellular pubescence. 

 -»- Pubescence wholly lepidote and silvery, i. e. of peltate scales fringed with very many 

 short hairs, indistinguishable except with a good lens : leaves very narrow. 

 M. leptoph^Uum, Gray, a foot or less high from lignescent base and stock ; stems very 

 numerous, erect or ascending, slender : lower leaves short-petioled aud 3-parted or -divided 

 into narrow linear divisions ; upper simple and sessile, mostly filiform : flowers few and 

 racemose at summit : petals copper-red, less thau half inch long: fruit depressed-globular, 

 slightly surpassing the triangular calyx-lobes; carpels 9 or 10, tomentulose, thickish and 

 rounded on the back, sides coarsely and strongly reticulated. —PI. Wright, i. 17, ii. 20.- — 

 S. W. Texas aud New Mexico, Wright, Thurber, &c., to S. Utah, Mrs. Thompson. 

 ■i- -i- Stem and leaves (at least on the lower surface) canesceut-tomeutose with short pu- 

 bescence : calyx and rather narrow lanceolate to linear involucellate bractlets hirsute or 

 villous : leaves roundish or obscurely lobed, obtusely dentate or creuate : carpels subor- 

 bicular, thin-walled and promptly 2-valved at maturity, smooth or when young tomentose. 

 M.* Palmeri, Watson.^ Herbaceous stem stout, equably leafy to summit : leaves 2 or 3 

 inches long, covered on both surfaces with short and persistent stellate tomentum ; the base 

 truncate or subcordate ; petioles long : flowers few and sessile in a capitate cluster at the 

 summit of a terminal peduncle, foliaceous-bracteate : calyx-lobes ovate-lanceolate, attenuate, 

 5 lines in length, with the linear little shorter involucellate bractlets soft-hirsute : petals 

 inch long, light rose-color. — Proc. Am. Acad. xii. 250, & Bot. Calif, ii. 437. — San Luis 

 Obispo Co., California, at Cambria, a mile from the beach, Palmer. A peculiar species. 

 M.* involucratum, Robinson, n. sp. Branches terete, finely stellate-pubescent : leaves 

 thickish, rugulose aud soon wholly glabrate above, a little paler and finely stellate-pubescent 

 beneath, 3-lobed and creuate, cordate at the base with a shallow mostly narrow sinus; lolies 

 obtuse or rounded ; petioles 6 lines to inch and a half h^ng : flowers smaller than in the last 

 preceding species, densely capitate ; heads terminal, solitary, involucrate with several l)roa(l 

 sessile ovate or oblong acute or obtusish bracts ; bractlets 3, lanceolate : calyx half inch in 

 length ; segments ovate, acuminate, 2^ tor 3 lines long : corolla pale purple or white, 10 lines 

 in length : carpels about 10. — California, at Jolon, Branderjee (herb. Gray), and between 

 Jolon and King City, Miss Easfirood (herb. Calif. Acad. Sci.). An interesting species (pre- 

 sumably of restricted range), with habit of the preceding but different foliage and smaller 

 flowers. 

 M. densiflorura, Watson. Two or three feet high, suffrutescent below : leaves round- 

 cordate, tomentose on both surfaces, inch or more in diameter, rather long-petioled : flowers 

 numerous in sessile heads along the naked summit of the branches, distant or approximate 

 in an interrupted spike : calyx with ovate at length attenuate-acuminate teeth and along 

 with slender bractlets and whole inflorescence hispidly hirsute with slender spreading hairs : 

 petals half inch long, rose-red: carpels glabrous. — Proc. Am. Acad. xvii. 368. — S. Cali- 

 fornia, near San Jacinto Mountains in the Colorado Desert, Parish, and San Juan Capis- 

 trano, Nevin. 



4— H— ^— Foliage and carpels of the last division : bractlets of the involucels broad, ovate, 

 acuminate, stellate-tomentulose but not hirsute nor villous. 



^ Add syn. Malveopsis nurantiaca, Knntze, 1. c. 



2 Add syn. Malveopsis leptophylla, Kuntze, 1. c. 



3 The description of this plant has been modified to excliide more clearly the next following nearly 

 related but quite distinct species. 



