PASSION FLOWER FAMILY 1638 
the flowering period. Flowers pale yellow, purple-veined. In moist 
woods and thickets. 
9. V. canadensis L. Canapa VIoLET. Stems tufted, very leafy, 
smooth, 1 ft. or more high. Leaves heart-shaped, acute or taper- 
pointed, serrate ; stipules lanceolate, entire. Flowers large and hand- 
some. Petals white or nearly so, inside, the upper ones usually 
violet-tinged beneath ; lateral petals bearded. In rich woods, especially 
of hilly regions. 
10. V. striata Ait. Srripep VioLer. Similar to J. canadensis, 
but the stipules dentate, pinnately cut, or fringed. Petals cream- 
colored, white, or bluish, distinctly veined. Moist woods and thickets. 
§ 3. Leafy-stemmed, from an annual, biennial, or occasionally short- 
lived perennial root ; stipules about as large as the blades of the 
leaves. 
11. V. tricolor L. Pansy, Hrart’s-Easr. Stem branching, ancu- 
lar, hardly erect. Leaves variable, more or less ovate, crenate or 
crenate-serrate, Flowers large (often more than 1 in. across), flattish, 
short-spurred, exceedingly variable in color. Cultivated from Europe. 
12. V. arvensis Murr. Fretp Pansy. Similar to V. tricolor, but 
the whole plant smaller and more slender. Leaves narrow, often 
lanceolate, the stipules dissected into narrow divisions. Petals all 
yellow, equaling or shorter than the slender, pointed sepals. Com- 
mon in old fields. Naturalized from Europe. 
13. V. Rafinesquii Greene. Wiip Pansy. Annual, slender, often 
branching from the base. Leaves small, the earlier ones roundish, 
on slender petioles; the later ones obovate or narrower, tapering to 
the base. Flowers small, yellowish-white to bluish-awhite. Petals 
much longer than the linear sepals. Woods and fields. 
68. PASSIFLORACEZ. Passion Frower Famiry 
Shrubs or herbs, chmbing by axillary tendrils. Leaves al- 
ternate, simple, mostly 3-lobed. Flowers axillary, on jointed 
peduncles, solitary or few together, bisexual, actinomorphie, 
often showy. Calyx tube 4-5-lobed, persistent. Petals usually 
5, inserted on the throat of the calyx tube, which is fringed 
with a crown of 1-3 rows of long and slender filaments. 
Stamens 5, their filaments united, and inclosing the stalk of 
the ovary. Styles 1-5; ovary with 3-5 parietal placente. 
Seeds numerous ; fruit fleshy. 
