335 



This is probably the Asanim arifolhwi of Dr. Chapman's Flora, 

 but not the plant of Michaux, specimens of which I have never 

 seen from further south than Georgia. It differs from Asarinn 

 arifolimn in both foliage and infloresence. The leaf-blades are 

 simply ovate, and lack the halberd-shape so characteristic of those 

 of the Michauxian plant, and the margin instead of being entire 

 is finely undulate or crenulate. The pedicels are always short, 

 never elongating like those of A. arifoliiun, while the perianths 

 ■ of the two species are entirely dissimilar in shape ; that of Asamin 

 callifolium being larger, much shorter in proportion to the length 

 and with a rounder base. 



Aristolochia convolvulacea. 



Perennial, slender, bristly-pubescent throughout. Stems erect 

 or decumbent, 1-3 dm. long, angled, slightly flexuous, simple, or 

 rarely branched below; leaves thinnish, becoming firm at ma- 

 turity, broadly ovate to oval, 2-8 cm. long, short-acuminate or 

 rarely acute, ciliate, deeply cordate at the base, short-petioled ; 

 petioles .5-1.5 cm. long, hirsute; peduncles slender, i-2-flowered, 

 flexuous, angled; calyx densely hirsute, the tube .5-1 cm. long, 

 the limb 6-8 mm. broad, scarcely lobed ; capsule subglobose, 6-7 

 mm. in diameter, pubescent. 



In woods, "... Columbus, Georgia. Grows from Athens 

 to near this place " (Boykin). 



Dr. Boykin noticed the differences between Aristolochia Serpen- 

 tana and the one here described as new, many years ago. Besides 

 observing the plant in the field, he cultivated it in his garden, and 

 sent both native and cultivated specimens to Dr. Torrey in whose 

 herbarium they are preserved. 



Aristolochia convolvulacea can readily be distinguished from A. 

 Serpentaria by eithe. the pubescence or the foliage. In place of 

 the soft pilose hairs characteristic of Aristolochia Serpentaria, we 

 find a bristly-hirsute pubescence on all parts of the plant. The 

 leaves are much broader in proportion to their length than those 

 of its relative, resembling closely those of some Convolvulaceae, 

 whence the name. 



Paronychia scoparia. 



Perennial, rather slender, the foliage minutely pubescent. 

 Stem much branched at the base, the branches tufted, erect or 



