Malvastrum. MALVACEyK. 35 



tlio slondor potiolo: raceme often dense: calyx-lohes acute or acuiniimte, 2 to 4 lines 

 long : petals srarlot, G to 9 linos long : carpels ohlong, 2 lines l<jng, ronndod or 

 shortly beaked above, reticulated on the sides near the base, pubescent on the back. 

 — PI. Fendl. 21 ; Watson, iJot. King Exp. 47. Malva Munroana, Dough; Lindl. 

 Bot. Reg. xvi, t. 1306; Bot. Mag. t. 3537. 



From Wnsliiiif^ton Tcnitory to Nevada and Utah ; found eaatward of the Sierra Nevada. 



2. M. Thurberi, Gray. Shrubby at ba.se, 3 to 5 feet high, with wand-like 

 branches, densely toraentose : leaves thick and subrugose, shortly petioled, the upper 

 nearly sessile, rounded, cordate or truncate at base, somewhat 3 - 5-Iobed, crenate, 1 

 to 1| inches long: flowers small, nearly sessile in an interrupted naked spike, or 

 the inflorescence more expanded and racemose : calyx-lobes short, acute : fruit 

 broadly obovate, the carpels 1 \ lines long, rounded or subtruncate above, becoming 

 glabrous, not reticulated. — I'l". Thurb. 307. Mnlva fai^cicnlata, Nutt. 1. c. 225. 



In the Coast Ranges of Southern California ; at Pacheco's Pass (Bolander), Santa Barbara 

 (Nultall), San Diego {Parry), and in Sonora (Thurbcr). No. 554 Brewer, from the Santa Lucia 

 Mountains above the Naciiniento, is probably the same, but with the flowers fewer and less 

 crowded, and tlin leaves roundod-rliomboidol and very tomoiitose ; described as very fragrant. 



3. M. splendidum, Kellogg. A shrub 10 to 12 f(!et high or more, the branches 

 and leaves gmy-tomentose : leaves shortly petioled, cordate-ovate, 5-lobed, the lobes 

 acute and crenate: flowers nearly sessile in terminal branching panicled racemes, the 

 spreading peduncles 1 to 2 inches long : calyx-lobes short, acute : carpels oblong, 

 1^ lines long, rounded at each end, with a short mucronate beak above, becoming 

 glabrous, reticulated on the sides below. — Proc. Calif. Acad. i. 65. 



Imperfectly described by Dr. Kellogg from a small specimen collected in the neighborhood of 

 Los Angeles and said to have been taken from a tree ]5 to 20 feet high and a foot in circumference. 

 The above dcsciiption is ba.sed upon sj)ecimens found by Prof. Brewer in the Sierra Santa Monica, 

 which accord sufKciently well with the original account. Differing from the last mainly in the 

 form of the leaves and in the open inflorescence. 



4. M. marrubioides, Duraud c^- Hilgard. Densely pubescent, two feet high : 

 leaves thick and shortly petioled, ovate, subcordate, obscurely 3-lobed, acutely ser- 

 rate : flowers nearly sessile, in paniculate clusters of 3 to 5 in a somewhat naked 

 raceme: calyx-lobes long-acuminate, little shorter than the rose-colored jietals: carpels 

 rounded or oblong, glabrous, not reticulated. — Pacif. P. Ixcp. v. 6, t. 2. 



Collected only near Millorton on the San Joaquin, Hcfrmnnu. 



5. M. Coulteri, Watson. Branches slender, somewhat pubescent : leaves an 

 inch or less in hingth, ovate-subcordate, 3 - 5-lobed, acutely toothed, equalling or 

 exceeding the slender petioles : flowers small, in a rather loose raceme : calyx-lobes 

 acuminate : petals 4 or 5 lines long, rose-color : carpels rounded, less than a line in 

 diameter, with a thin horizontal oblong projection inward at base, very strongly 

 reticulated, pubescent on the under surface. — Proc. Am. Acad. xi. 125. 



Collected by Coulter (n. 96) probably in Southeastern California, and by Schott in the Gila 

 bottom on the Mexican Boundary Survey. Well distinguished by its j>oculiar carjx-ls. 



• » Avnnalt. 



6. M. rotundifolium, Gray. Bather stout and sparsely hispid with spreading 

 hair.s, two feet high or less : leaves reniform, obscurely lobtMl, coarsely toothed, the 

 lower long-petioled : flowers loosely clustered, the lower peilicels elongated : calyx 

 4 or 5 lines long, with acuminate lobes enlarging in fruit : petals broad, ^ inch long, 

 light purple with a red spot at base : carpels 40 or more, thin, circular, 1^ lines 

 broad, glabrous, reticulated ; the axis dilated. — Proc. Am. Acad. vii. 333. 



On sand-hills near Fort Mohave {Cooper), and eastward in Arizona. 



7. M. exile, Gray, Decumbent, the stems becomiiig a foot long or more, pubes- 

 cent : leaves 6 to 9 lines broad, broadly ovate, cordate or truncate at base, deeply 

 5-lobe(.l, sparingly toothed, equalling the petioles: flowers mostly solitary and axillary. 



