MALVACEAE. [Vor. II. 
1. Napaea dioica IL. Glade Mallow. 
(Fig. 2424.) 
Napaea dioica I,. Sp. Pl. 686. 1753. 
Simple, or branching above, 4°-9° high, pu- 
bescent, or glabrate. Basal and lower leaves 
6/-12’ broad, long-petioled, orbicular in out- 
line, 7-11-parted nearly to the base, the divi- 
sions acute, dentate and lobed; upper leaves 
smaller, short-petioled, 5-9-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 1-nerved, 
slightly rugose-reticulate. 
In moist grounds, southern Pennsylvania to 
Virginia, west to Minnesota and Iowa. July. 
ie MALVASTRUM A. Gray, Mem. Am. Acad. (II.) 4: 21. 1848. 
[Matveopsis Presl, Bem. 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 involucels small, 1-3 
or none. Stamen-column anther-bearing at the apex. Cavities of the ovary 5», 1-ovuled. 
Style-branches of the same number, stigmatic 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. ] 
About 75 species, natives of America and South Africa, 2 of them widely distributed as weeds 
in tropical regions. In addition to the following, about 12 other species inhabit the southern and 
western United States. 
Leaves lanceolate-oblong, dentate. 1. MW. angustum. 
Leaves pedately 5-parted, the lobes incised. 2. M. coccineum. 
4 
1. Malvastum angtistum A. Gray. 
Yellow False Mallow. 
(Fig. 2425.) 
Sida hispida Pursh, Fl. Am. Sept. 452. 1814? 
Malvastrum angustum A, Gray, Mem. Am. Acad. 
(II.) 4:22. 1848. 
Maiveopsis hispida Kuntze, Rev. Gen. Pl. 72. 1891. 
Annual, erect with the habit of a Szda, slender, 
branching, pubescent with appressed hairs, 6’—12/ 
high. Leaves oblong-lanceolate, or linear-oblong, 
petioled, acute, finely dentate with somewhat dis- 
tant teeth, 9’’-20’’ 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 lowa and 
Kansas, Summer, 
