MALVACEAE (MALLOW FAMILY) 93 



lobed or more or less deeply 3 to 5-lobed, with broad teeth, very 

 woolly when young, tawny-flocculent, even in age ; berries middle- 

 sized, black. Thickets. May, June. 



V. cordifolia, FROST GRAPE. Leaves smooth and mostly shining, 

 unlebed or slightly 3-lobed, deeply cordate, sharply toothed; stipules 

 small; berries black and shining, very sour. Thickets and stream 

 banks. May, June. 



V. vulpina, RIVER GRAPE. Resembling the last, but leaves more 

 shining and usually 3-lobed; stipules larger and more persistent; 

 berries blue with a bloom. Stream banks. 



TILIACEAE (LINDEN FAMILY) 



Trees with soft white wood. Leaves alternate, heart-shaped, 

 serrate. Small cymes of cream-colored, fragrant flowers, hang- 

 ing on the axillary peduncles. Fruit globular, dry and woody. 



TILIA 



Sepals and petals 5. Stamens numerous. Filaments cohering 

 in 5 clusters. Pistil with a 5-celled ovary. 



T. americana, BASSWOOD. Leaves large, green, and glabrous ; floral 

 bract, which is united to the axillary peduncle, tapering or stalked at 

 base; fruit obscurely ribbed. Rich woods. May, June. 



MALVACEAE (MALLOW FAMILY) 



Herbs or shrubs with alternate, palmately veined leaves. Flow- 

 ers regular, ^vith numerous stamens, monadelphous, in a column, 

 and several carpels with ovaries united in a ring, or forming a 

 several-celled pod. 



MALVA 



Herbs with 3-leaved involucel like an outer calyx. Petals ob- 

 cordate. Fruit depressed, separating at maturity into as many 

 kidney-shaped carpels as there are styles. 



M. rotundifolia, COMMON MALLOW. Stems procumbent; leaves long, 



