Description of Native Vines 



dense racemes ; May ; not as fine as the Chinese species, though 

 cultivated ; twining. Virginia to Illinois. (PI. IX.) 



1 16. Clematis. (C. cylindrica.) 

 Leaf : pinnate, opposite ; leaflets, 5-9, long-ovate to lance- 

 shaped, entire or 3-5-lobed. Flower : purplish (no corolla, ca- 

 lyx somewhat cylindrical below, lobes broad, wide-spreading, with 

 wavy, thin margin), single, large ; May-August ; climbing by 

 twisted leaf-stems. Virginia. 



117. Grape. (Vitis bipinnata.) 

 Leaf : twice or thrice pinnate, leaflets deeply serrate or lobed. 

 Flower : greenish, small (petals and stamens 5), clustered ; 

 berry black, obovate ; tendrils. Virginia and Kentucky. 



118. Rhynchosia. (R. tomentosa.) 

 Leaf : pinnate ; leaflets, three or one ! roundish, somewhat 

 downy. Flower : yellow, somewhat pea-shaped (calyx about 

 as long as corolla. 4-lobed, upper lobe notched), clustered ; twin- 

 ing or trailing, herbaceous. Virginia. 



119. Bignonia. (B. capreolata.) 

 Leaf : pinnate, opposite ; leaflets, 2, ovate or oblong (often with 

 another small pair close to stalk like stipules), leaf-stem ending in 

 a tendril. Flower : orange, 2' long (coroHa rather bell-shaped, 

 5-lobed, somewhat 2-lipped, 4 stamens), few-clustered ; April ; 

 pod 6' long. Virginia. 



120. Birthwort. (Aristolochia tomentosa.) 

 Leaf : s'-s', simple, alternate, entire, round-heart-shaped ; 

 stalk downy. Flower (no corolla, calyx tubular, curved like 

 pipe, yellowish, purple at apex, wrinkled border at top): single or 

 paired ; June ; twining. Southern Illinois. 



121. Brunnichia. (B. cirrhosa.) 

 Leaf : simple, alternate, entire, heart-shaped or ovate, apex 

 pointed ; stalk grooved, leaf -stem broader at base. Flower : 

 greenish (no corolla, calyx 5-parted, lobes oblong, stamens 8), 



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