420 



MALVACEAE. [VOL. II. 



i. Napaea dioica L. Glade Mallow. 

 (Fig. 2424.) 



Napaea dioica L. Sp. PI. 686. 1753. 



Simple, or branching above, 4-9 high, pu- 

 bescent, or glabrate. Basal and lower leaves 

 6 / -i2 / broad, long-petioled, orbicular in out- 

 line, 7-n-parted nearly to the base, the divi- 

 sions acute, dentate and lobed; upper leaves 

 smaller, short-petioled, s-g-lobed, the lobes 

 incisely cut, acute or acuminate; staminate 

 flowers 6 // ~9 // broad, the pistillate somewhat 

 smaller; petals obovate, 2-3 times the length 

 of the calyx ; carpels strongly i -nerved, 

 slightly rugose-reticulate. 



In moist grounds, southern Pennsylvania to 

 Virginia, west to Minnesota and Iowa. July. 



5. MALVASTRUM A. Gray, Mem. Am. Acad. (II.) 4: 21. 1848. 

 [MALVBOPSIS Presl, Bern. Bot. 19. 1847.?] 



Herbs, with entire cordate or divided leaves, and axillary or terminal, solitary or race- 

 mose, short-pedicelled perfect flowers. Calyx 5-cleft. Bractlets of the involuccls small, 1-3 

 or none. Stamen-column anther-bearing at the apex. Cavities of the ovary 5-00 , i-ovulcd. 

 Style-branches of the same number, stigtnatic at the summit only, forming capitate stigmas; 

 carpels indehiscent or imperfectly 2-valved, falling away from the axis at maturity, their 

 apices pointed or beaked. Seed ascending. [Greek, star-mallow.] 



75 species, natives of America and South Africa, 2 of them widely distributed as weeds 

 regions. In addition to the following, about 12 other species inhabit the southern and 

 nited States. 



in tr< 

 wrstt 



Leaves lanceolate-oblong, dentate. 

 I<eaves pedately 5-parted, the lobes incised. 



i. Malvastum angustum A. Gray. 



Yellow False Mallow. 



(Fig. 2425.) 



Sida hispida Pursh, Fl. Am. Sept. 452. 1814? 

 Malvaslrum angustum A. Gray, Mem. Am. Acad. 

 (II.) 4: 22. 1848. 



Malveopsis hispida Kuntze, Rev. Gen. PI. 72. 1891. 



Annual, erect with the habit of a Sida, slender, 

 branching, pubescent with appressed hairs, 6'-i2' 

 high. Leaves oblong-lanceolate, or linear-oblong, 

 petioled, acute, finely dentate with somewhat dis- 

 tant teeth, 9 // -2o // long, 2 // -4 // wide; flowers yel- 

 low, 4 // -6 // broad, mostly solitary in the axils of 

 the upper leaves, short-peduncled; bractlets of the 

 involucre 2-3, linear, shorter than the ovate-trian- 

 gular pubescent acute calyx-lobes; petals about 

 equalling the calyx; carpels 5, somewhat pubes- 

 cent, reniform, 2-valved at maturity. 



In dry ground, Tennessee and Illinois to Iowa and 

 Kansas. Summer. 



1. M. angustum. 



2. M. coccineum. 



