MALVACEAE. (MALLOW FAMILY.) 41 



* Styles stigmatio down tlie inner side : carriels indchisicnt : ovules solitAry, aacending ' 



1. Callirrlioe. Braitlets 3, or none. Petals truncate. Caritels l»eake«l. 



2. Siiliilcea. Bractlets none. Filaments in a double series, those of the outer series 



united in 5 clusters. Carpels fewer, beakless. 



• • Stigmas capitate : carpels mostly dehiscent at least at the ajKix. 

 ^^. Malvastrum. Bractlets 1 to ;. -Ovule solitary, a.scending. 



4. Si)lia'ra!r«>a. Hructlets 1 to 3. Ovules 2, the lower ascending, the upi>er pendulous. 

 0. Al>iitilt>n. Hractlcts none. Ovules 3 or more in each cell. 



1. CALLIRRHOE, Nutt. 



Petals wedge-shaped (usually red-purple). (Jarpcls 10 to 20. with a ghort 

 empty beak, separated within from the I-seedcd cell hy a narrow projection. 



1. C. involucrata, Gray. Hirsute: .stem hranching. procumhent : leav«»s 

 dfejtiii 3 to b-iHiiUil, covered with stellate hairs, segmeiit.s linear-lanceolate, 

 laciniately 3 to 3-toothed: peduncles erect, l-flowered, longer tiian the leaves: 

 flowers few in a loose p<tiiicle, srarlct : hmctlels Unrnr-ldnceolnto : carpel.s hairy, 

 not loriiik'icd. — Lou]) Fork of the Platte, S. E. Colorado, and southward. 



2. C. alcseoides, Gray. Strigose-puhe.scent : stems slender : lower lmvfi$ 

 triangular heart-shaped, incised ; the up])er 5 to 7-parted, laciniate ; the upper- 

 most divided into linear segments : flowers cori/iuhosp, rose-color or white : itn<Jn- 

 cef none: carpels crested and strongly icrinlied on the back. — Valley of the 

 Platte, southward and eastward to Kentucky and Tennessee. 



2. SIDALCEA, Gray. 



Carpels 5 to 9, beakless. — Herbs, with rounded and mostly lobed or parted 

 leaves, the usually purple flowers in a narrow terminal raceme or spike. 



1. S. malvseflora, Gray. Lower leaves 7 to 9-lobed ; cauline more 

 narrowly and deeply 5 to 7-lobed ; segmnUs linear, somewhat tooilud: pedicels 

 at first shorter, at length longer than the snfinlale bracts : Jlnwers purple or white: 

 carpels 7, pointless. — From Mexico to Colorado and Oregon. 



2. S. Candida, Gray. Lower leaves orbicular, 7-lobed, segments coarsely 

 3 to 5-tootiied or incised ; upper leaves 7-lobed or parted ; the s<gnients lance- 

 olate, entire : pedicels shorter than the bracts : flowers whitf or crram-rnlor : cnrprh 

 9 or 10, cochleate-reniform, mucronate. — On water-courses in the mountains of 

 Colorado and southward. 



3. MALVASTRUM, Gray. F.vi.se M.vi.i.ow. 



Staniineal tube simple. Carpels .') or mcro. — Herbaceous tufted peren- 

 nials; the flow. -IS in narrow naked or leafy subpaniculate racemes. 



1. M. COCCineum, Gray. Low and hoary: Icarcs 5-/xir/f«/ or pfdate: 



1 Malvn, an introduced genus, has 3 distinct bractlets, obcordate i>otaN, and r.'iri>«U 

 rounded, beakless 



M. rot inidi folia, L., has iirocunibont stems, round heart-shaped crenato obsrurrly- 

 lobed leaves on very long petioles, whitish petals twice the length of the sopnls. and pu- 

 bescent carpels. —The common Mallow. Commonly naturalizetl along waysides and in 

 cultivated ground. 



