MALLOW FAMILY 561 



cleft, 2-4 cm. long; divisions rhombic-cuneate, lobed or coarsely toothed; inflor- 

 escence paniculate; calyx-lobes ovate, acute, 3-4 mm. long; petals brick-red to 

 pink, 10-15 mm. long; carpels reniform, 3 mm. long, rounded at the apex. S. 

 pedata Torr. Sida grossulariaefolia Hook. & Arn. - Plains, open hillsides, and 

 valleys: Wyo. Ariz. Nev. Ida. Son. Submont. My-Au. 



11. S. digitata (Greene) Rydb. Perennial, with woody caudex; stems 2-6 

 dm. high; leaves digitately or pedately 5-divided, or the uppermost 3-divided; 

 divisions of the lower leaves oblanceolate or cuneate, usually 3-cleft, with oblong 

 lobes, those of the upper leaves narrow, linear or with linear lobes; inflorescence 

 a narrow virgate panicle; calyx-lobes lanceolate-acute; corolla scarlet, 9-10 mm. 

 long; carpels obliquely reniform, lower half reticulate on the faces. S. pedata 

 angustiloba A. Gray. Malvastrum digitatum Greene. Dry mesas and sandy 

 soil: w Tex. N.M. Utah Ariz. Son. My-Au. 



12. S. coccinea (Nutt.) Rydb. Perennial, with a woody base; stems several, 

 1-3 dm. high; leaf -blades 3-cleft to the base and the lateral divisions again deeply 

 2-parted; divisions rhombic-cuneate to spatulate, usually 3-cleft at the apex, 

 with oval or oblong lobes; inflorescence dense, short, raceme-like; sepals ovate, 

 about 3 mm. long, villous-stellate ; petals usually brick-red, 8-12 mm. long; 

 carpels reniform, 3 mm. high. Malvastrum coccineum (Nutt.) A. Gray. Dry 

 plains and sandy valleys: Man. la. Tex. Utah Ore. Plain Mont. My- 

 Au. 



13. S. elata (E. G. Baker) Rydb. Perennial, with a woody caudex; stems 

 2-4 dm. high; leaf-blades cordate in outline, 3-cleft to the base and the lateral 

 divisions again 2-cleft; middle division oblanceolate, 3-5-lobed above the middle, 

 the lateral divisions 2-3-lobed or entire; calyx-lobes lanceolate, 3-4 mm. long; 

 petals about 12 mm. long, brick-red; carpels 3-4 mm. long. Malvastrum coc- 

 cineum elatum E. G. Baker. Dry plains: N.M. Colo. Son. My-Jl. 



14. S. dissecta (Nutt.) Rydb. Perennial, with a cespitose woody base; 

 stems 1-3 dm. high, densely cinereous-stellate; leaf -blades 1-3 cm. broad, dis- 

 sected to the base into 5 divisions; these rhombic in outline and twice cleft; 

 inflorescence racemiform; petals scarlet, 10-12 mm. long; carpels reniform, 

 strongly reticulate, 3 mm. long. Malvastrum coccineum dissectum Nutt. M. 

 Cockerellii A. Nels. Dry rocky hills: Wyo. Ariz. Utah. Son. My-Je. 



15. S. leptophylla (A. Gray) Rydb. Perennial, with a thick woody tap- 

 root and caudex; stems 1-4 dm. high, numerous, silvery -lepidote; leaf -blades 

 divided into 3 narrowly linear divisions, or the upper entire, linear-filiform, 

 silvery-lepidote ; inflorescence racemiform; calyx-lobes ovate, acute; petals copper- 

 red, 1 cm. or less long; carpels tomentulose, 3 mm. long. Malvastrum lepto- 

 phyllumA,GT&y. Dry places: w Tex. s Colo. s Utah Ariz. Son. My-Au. 



5. PHYMOSIA Desv. WILD HOLLYHOCK, MAPLE-LEAVED MALLOW. 



Tall leafy perennials, with rootstocks. Leaves alternate, palmately ribbed 

 and lobed, with acute lobes, and maple-like in appearance. Flowers large, 

 clustered in the upper axils or interruptedly spicate or corymbose at the summit, 

 subtended by bractlets. Sepals united at the base. Petals rose-colored, purplish, 

 or white, obcordate. Stamens monadelphous in single series. Carpels oblong, 

 hirsute, thin, not reticulate, 2- or 3-seeded. [Iliamna Greene.] 



Sepals lanceolate or ovate-lanceolate, long-attenuate; bractlets subulate, three-fourths 

 as long as the sepals. 1. P. Crandallii. 



Sepals broadly triangular-ovate, acute; bractlets scarcely more than half as long as the 



sepals. 

 Calyx and pedicels stellate; bractlets subulate; petals 2-2.5 cm. long. 



Plant sparingly stellate, green. 2. P. rivularis. 



Plant densely stellate-canescent. 3. P. acerifolia. 



Calyx and pedicels hirsute with branched hairs; bractlets lanceolate; petals 3 cm. 

 or more long. 4. P. grandiflora. 



1. P. Crandallii Rydb. Stem simple, about 6 dm. high; sparingly stellate; 

 leaf -blades cordate in outline, 5-lobed, about 5 cm. in diameter; lobes lanceolate, 

 coarsely toothed; pedicels and calyx sparingly and finely stellate; petals white or 

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