Feb., 1912.] 
The Mallows of Ohio. 
467 
1. Callirrhoe involucrata (T. & G.) A. Gray. Purple Poppy- 
mallow. 
Perennial, procumbent, ascending herbs, 1-2 feet long, pube- 
scent with long hispid hairs; taproot fleshy sometimes reaching to 
depth of 10 or more feet. Leaves cordate-orbicular, the lobes 
dentate or incised, blades 3 inches wide, 2 x /i inches long; petioles 
3-5 inches long. Flowers bright red purple, V/2 inches wide. 
A waif in Franklin Co. 
ALTHAEA L. 
Pubescent herbs with lobed or divided leaves and solitary or 
racemose flowers. Involucre of 6-9 united bracts; carpels and 
cavities of the ovulary numerous, separating at maturity into 
1 -seeded fruits. 
1. Leaves more or less 3-lobed, very velvety, the lobes acute. 
A. officinalis. 
1. Leaves with 5-7 rounded lobes, with hairy pubescence. A. rosea. 
1. Althaea officinalis L. Marsh-mallow. 
Perennial plants; leaves ovate, dentate, and generally 3-lobed, 
blades 2 x /i inches broad and 2% inches long. Waif in Scioto Co. 
2. Althaea rosea Cav. Hollyhock. 
Perennial plants 10 feet or less tall; leaves cordate, dentate, 
blades 3-6 inches broad, 3% to 434 inches long, petioles 3-7 inches 
long; flowers 4 inches in diameter. Lucas, Erie, Madison, Mont- 
gomery, Brown, and Scioto Co. 
SID A L. 
Herbs with serrate, crenate, or lobed leaves and bisporangiate 
flowers. Involucre none, cavities of the ovulary 1-ovuled, inde- 
hiscent, or two-valved at apex. 
1. Leaves not lobed, ovate, or oblong-lanceolate. S. spinosa. 
1. Leaves palmately lobed or palmately veined, glabrous or nearly so, tall. 
5 1 . hermaphrodita. 
1. Sida spinosa L. Prickly Sida. 
Annual ascending, finely pubescent; leaves ovate, blades 
1 inch wide, 2 inches long, petiole 1 inch long. Rather general. 
2. Sida hermaphrodita (L.) Rusby. Tall Sida. 
Perennial; leaves ovate, orbicular, deeply 3-7 lobed, the lobes 
lanceolate or ovate, incised, dentate, acute or acuminate, blades 
4 inches wide, 534 inches long; flowers white and numerous. 
No specimens. 
NAPAEA L. 
Erect, perennial herbs, with palmately-lobed leaves and small, 
white diecious flowers in corymbose panicles; involucre none, 
carpels 8-10, separating at maturity into 1-seeded fruits. 
