TILIACEAE 759 
3. Parthenocissus laciniàta (Planch.) Small. A straggling vine, with long tendrils 
destitute of disks, the stems with a smooth or slightly Ronin bark. Leaflets 5- 6, the 
blades thin, 4-10 cm. long, coarsely toothed with more or less flaring teeth, manifestly 
etioluled : corymbs 5 cm. broad, many-flowered, drooping in fruit: berries 5-7 mm. in 
iameter. [Parthenocissus quinquefolia var. laciniata Planch. ] 
di RU river banks and in woods, Iowa to Michigan, Ohio and Colorado. Spring; fruit ripening in 
e fall. 
4. Parthenocissus heptaphylla (Buckl.) Britton. A glabrous vine, sometimes 
climbing to the height of 10 m., with long forking tendrils. Leaflets mostly 7, the blades 
oblanceolate or oblong-oblanceolate (or the lateral ones oblong-lanceolate), acuminate, 
coarsely toothed above the middle or incised, often cuneately narrowed at the base, sessile 
or short-petioluled : corymbs 4-8 cm. broad, pendulous : berries subglobose, about 5 mm. in 
diameter, dark blue or nearly black: seeds 3-4, nearly 4 mm. long. [Ampelopsis hepta- 
phylla Buckl.] 
In rocky or sandy soil, chiefly in or near the mountains, Texas. Spring. 
Order 19. MALVALES. 
Herbs, shrubs or trees. Leaves various: blades simple, commonly lobed. 
Flowers often showy, commonly involucrate. Calyx of distinct or partially 
united valvate sepals. Corolla of distinct petals. Androecium of numerous 
stamens with monadelphous filaments or these collected into several sets, or few 
in BUETTNERIACEAE. Gynoecium of several united or distinct carpels. Ovaries 
with axile placentae. Mature carpels sometimes separating from each other. 
Stamens numerous (in our genera). 
Stamens distinct or in several groups: anthers 2-celled. Fam. 1. TILIACEAE. 
Stamens monadelphous: anthers 1-celled. Fam. 2. MALVACEAE. 
Stamens as many as the sepals. Fam. 3. BUETTNERIACEAE, 
FaMILY 1. TILIACEAE Juss. LINDEN FAMILY. 
Shrubs or stately trees, or rarely herbs, pubescent with simple or branched 
hairs. Leaves alternate or rarely opposite: blades simple: stipules free, often 
deciduous. Inflorescence sometimes opposite the leaves, often racemose, cymose 
or corymbose. Flowers usually perfect, regular. Calyx of 4-5 valvate decidu- 
ous sepals. Corolla of 4-5 hypogynous imbricated or convolute often clawed 
petals which sometimes develop a more or less petaloid scale at the base. 
Androecium of usually numerous stamens or sometimes twice as many as the 
sepals. Filaments distinct, sometimes collected in groups opposite the petals, 
simple or forked. Anthers 2-celled, erect or versatile., Pollen smooth. Gynoe- 
cium a compound pistil. Ovary free, sessile or stalked, 2-10-celled, each cavity 
with an incomplete secondary partition. Styles united. Stigma capitate, di- 
lated or several-lobed. Ovules 2-many, in two rows in each cavity, anatro- 
pous. Fruit a loculicidal, a rarely septicidal capsule, or sometimes nut-like or 
berry-like. Seeds numerous or sometimes solitary, with a crustaceous or mem- 
ne testa. Endosperm fleshy or rarely wanting. Cotyledons sometimes 
obed. 
Peduncles or pedicels without a conspicuous bract: filaments not forked: fruit capsular. 
Petals inserted with the stamens: capsule often silique-like. 1. CORCHORUS. 
Petals inserted below the stamens, at the base of an elevated receptacle: capsule E iets 
subglo N 
Peduncles each with a conspicuous adnate bract: filaments forked : fruit nut-like. 8. TILIA. 
1. CORCHORUS L. 
Herbs or small shrubs. Leaves alternate: blades serrate. Flowers solitary or several, 
usually on short peduncles opposite the leaves. Sepals 5 or rarely 4. Petals yellow, 5 or 
rarely 4, naked at the base, convolute. Stamens numerous, or twice as many as the sepals, 
inserted with the petals: filaments filiform, not forked: anthers introrse. Ovary 2-5- 
celled, superior: stigma dilated, undulate. Ovules numerous in each cavity. Capsule 
