5 i6 



MALVACEAE. 



VOL. II. 



5. Malva Alcea L. European or Vervain Mallow. 

 Fig. 2852. 



Malva Alcea L. Sp. PI. 689. 1753. 



Similar to the preceding species, but the stem-leaves are 

 only once 5~7-parted or cleft, the lobes dentate or incised ; 

 pubescence shorter and denser, stellate; flowers pink, pur- 

 plish or white; petals obcordate; carpels glabrous, very 

 finely rugose-reticulated. 



In waste places, occasionally escaped from gardens, Ver- 

 mont to Michigan, New York and Pennsylvania. Introduced 

 from Europe. Summer. 



3. CALLIRHOE Nutt. Journ. Acad. Phil. 2: 181. 1821. 

 [NUTTALLIA Barton, Fl. N. A. 2 : 74. pi. 62. 1822.] 



Herbs, with lobed or divided leaves, and showy axillary or terminal perfect flowers. 

 Bractlets of the involucel 1-3, separate, or none. Calyx deeply 5-parted. Petals cuneate, 

 truncate, often toothed or fimbriate. Stamen-column anther-bearing at the summit. Cavities 

 of the ovary o, i-ovuled; style-branches of the same number as the cells of the ovary, stig- 

 matic along the inner side. Carpels o (10-20), arranged in a circle, i-seeded, indehiscent or 

 2-valved, beaked at the apex, the beak separated from the cavity by a septum. Seed ascend- 

 ing. [A Greek mythological name.] 



A genus of about 7 species, natives of the central and southern United States and northern 

 Mexico. Type species : Callirhoe digitdta Nutt. 



Bractlets of the involucels none. 



Flowers i' broad ; carpels very pubescent. i. C. alceoides. 



Flowers i y 2 '-2' broad ; carpels scarcely pubescent. 2. C. digitata. 

 Bractlets of the involucels 3. 



Leaves triangular, crenate ; carpels not rugose. 3. C. triangulata. 



Leaves orbicular, palmatifid ; carpels rugose. 4. C. involucrata. 



i. Callirhoe alceoides (Michx.) A. Gray. 

 Light Poppy-Mallow. Fig. 2853. 



Sida alceoides Michx. Fl. Bor. Am. 2: 44. 1803. 



Callirhoe alceoides A. Gray, Mem. Am. Acad. (II.) 4: 

 1 8. 1848. 



Perennial, erect, 8'-2o' high, slender, strigose- 

 pubescent, branched at the base from a thick woody 

 root. Basal leaves triangular, palmately lobed or 

 incised, 2'-$%' long, slender-petioled ; stem-leaves 

 palmatifid, the divisions linear or cuneate, acute or 

 obtuse ; flowers corymbose or racemose at the sum- 

 mit, pink or white, about i' broad ; pedicels i'-2' 

 long, slender ; involucels none ; calyx-lobes triangu- 

 lar, acuminate; petals dentate and somewhat fim- 

 briate ; carpels strigose-pubescent and conspicuously 

 rugose-reticulate on the back. 



In dry soil, Kentucky to Nebraska, Kansas and Texas. 

 May-Aug. 



