466 
The Ohio Naturalist. 
[Vol. XII, No. 4, 
1. Leaves with shallow rounded lobes; flowers clustered in the axils. 2. 
1 . Leaves deeply 5-7 lobed or pinnatified; flowers only in the upper axils. 4. 
2. Stems procumbent; root perennial; petals 1-2 times the length of the 
calyx. M. rotundifolia. 
2. Stems erect, annual or biennial. 3. 
3. Leaf margins not much crisped; biennial; petals 2—4 times the length of 
the calyx. M. sylvestris. 
3. Leaf margins very much crisped; annual; petals 1-2 times the length of 
the calyx. M. crispa. 
4. Stem leaves 5-parted; the divisions pinnatified into linear lobes, carpels 
downy, cleft, the divisions broad. M. moschata. 
4. Stem leaves deeply 5-lobed, carpels smooth. M. alcea. 
1. Malva sylvestris L. High Mallow. 
Biennial, erect or ascending, pubescent with spreading hairs; 
leaves obicular and reniform, truncate or cordate at the base; 
flowers reddish purple, carpels about 10. In waste places and 
along roadsides. Auglaize, Cuyahoga Co. 
2. Malva rotundifolia L. Roundleaf Mallow. 
Annual or biennial, procumbent and spreading; leaves orbicular 
reniform; blades 2 inches wide, petioles about 6 inches long; 
flowers clustered in the axils, petals pinkish white with 3 reddish 
nerves, carpels about 15. In fields and waste places. General. 
3. Malva crispa L. Curled Mallow. 
Annual, glabrous, or nearly so; leaves nearly orbicular with 
shallow, angular, crenate lobes with wrinked crisped margins; 
blades 5 inches wide; petioles 5 inches long; flowers C 2 inch long, 
y 2 inch in diameter. In waste places. No specimens. 
4. Malva alcea L. European Mallow. 
Perennial, procumbent, pubescent. Stem leaves only once 
5-7 parted or cleft, the lobes dentate or incised, blades 3 inches 
long, 4}/2 inches wide, petiols 1 x /i to 4 x /i inches long; flowers 
l z /i inches in diameter. In waste places. Escaped in Cuya- 
hoga Co. 
5. Malva moschata L. Musk Mallow. 
Perennial, pubescent with long hairs. Basal leaves orbicular 
with broad, rounded, dentate lobes; stem leaves deeply divided into 
linear or crenate, pinnatified or cleft segments; stem leaf blades 
2 inches long, 2 inches wide, petiols l}/£ inches long. Flowers IC 2 
to 2 inches in diameter. In waste places. Northern part of the 
State as far south as Muskingum Co. 
CALLIRRHOE Nutt. 
Herbs with lobed or divided leaves and showy flowers. Bracts 
of the involucre 1-3, separate, or none. Petals cuneate, often 
toothed or fimbricate. Carpels beaked, 10-20, forming an ovulary 
with equal number of cavities. Cavities 1-ovuled and 1 -seeded. 
