188 MALVACEAE. 



to purple, with a slight bloom, the skin and tough pulp sweet and musky, or 

 astringent. Common, in thickets and woods. Early sum. FOX-GRAPE. 

 PLUM-GRAPE. 



2. PARTHENOCISSUS Planch. Vines, the tendrils often disk-bearing. 

 Leaf -blades digitately compound. Flowers in compound cymes. Petals spread- 

 ing. Berries inedible. 



1. P. quinquefolia (L.) Planch. Leaflets 5; blades usually thinnish, oval, 

 elliptic, or oblong, the lateral ones inequilateral, coarsely serrate above the 

 middle with rather appressed teeth: tendrils with disks: berries 8-9 mm. in 

 diameter, deep-blue with scant bloom, pulpy: seeds 4-4.5 mm. long, prominently 

 rugose, rather dull, each with an orbicular raphe. Common, in thickets and 

 on rocky river-banks. Sum. VIRGINIA- CREEPER. WOODBINE. AMERICAN- 

 IVY. 



Order MALVALES. 



Herbs, shrubs, or trees. Leaves alternate or opposite: blades simple, 

 often lobed and toothed. Flowers mostly perfect, regular and involucrate. 

 Calyx of distinct or partially united sepals. Corolla of distinct petals. 

 Androecium of numerous monadelphous or grouped stamens. Gynoecium 

 of several distinct or united carpels. Fruit capsular, follicular, berry-like, 

 or nut-like. 



Stamens in several groups : anthers 2-celled : embryo straight. Fam. 1. TILIACEAB. 

 Stamens monadelphous : anthers 1-celled : embryo curved. Fam. 2. MALVACEAE. 



FAMILY 1. TILIACEAE. LINDEN FAMILY. 



Shrubs or trees, or rarely herbs. Leaves mostly alternate: blades 

 simple. Flowers usually perfect. Calyx of 4 or 5 sepals. Corolla of 4 or 

 5 petals which sometimes bear a petaloid scale at the base. Androecium of 

 usually numerous stamens, sometimes of as many or twice as many as the 

 sepals. Gynoecium of 2-several united carpels. Fruit capsular, nut-like, 

 or berry-like. 



1. TILIA [Tourn.] L. Trees. Leaf-blades oblique, toothed. Sepals 5. 

 Petals 5, longer than the sepals. Stamens sometimes in groups opposite the 

 petals and accompanied by staminodia. Anther-sacs separated. Berry 1-2- 

 seeded. LINDEN. LINN. LIME-TREE. BEE-TREE. WAHOO. 



1. T. americana L. Tree becoming 40 m. tall: leaf -blades ovate to orbicular- 

 ovate, 815 cm. long, bright-green beneath: bracts decurrent nearly to the 

 base of the peduncles: sepals ovate-lanceolate to lanceolate, 6-8 mm. long, 

 acute, puberulent: petals 9-11 mm. long, pale-yellow, obtuse: staminodia 

 spatulate: berries oval, about 1 cm. long. Common, on rocky hillsides and 

 river-banks. Sum. WHITEWOOD. BASSWOOD. 



FAMILY 2. MALVACEAE. MALLOW FAMILY. 



Herbs, shrubs, or trees. Leaves alternate: blades simple, palmately 

 veined. Flowers perfect. Calyx of 5 more or less united valvate sepals. 

 Corolla of 5 convolute petals. Androecium of numerous monadelphous 

 stamens. Gynoecium of several united, often whorled, carpels. Fruit 

 capsular or sometimes baccate. 



