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^/2 inches long; petioles 

 3-5 inches long. Flowers bright red purple, l}^ inches wide. 

 A waif in Franklin Co. 



ALTHAEA L. 



Pubescent herbs with lobcd or divided leaves and solitary or 

 racemose flowers. Livolucre of 6-9 united bracts; carpels and 

 cavities of the ovulary numerous, separating at maturity into 

 1 -seeded fruits. 



1. Leaves more or less -S-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 23^2 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, 3^4= to 4^ inches long, petioles 3-7 inches 

 long; flowers 4 inches in diameter. Lucas, Erie, Madison, A-Iont- 

 goniery, Brown, and Scioto Co. 



SIDA L. 



Herbs with serrate, crenate, or lobed leaves and bisporangiate 

 flowers. Involucre none, cavities of the ovrdary 1-ovuled, inde- 

 hiscent, or two-valved at apex. 



1. Leaves not lobed, ovate, or oblong-lanceolate. 5. spinosa. 

 I. Leaves palmately lobed or i5almately veined, glabrous, or nearly so, tall. 



S. hermaphrodita. 



1. Sida spinosa L. Pricldy Sida. 



Anntial ascending, finely pvibesccnt; 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, 5^ 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. 



