78 



A beautiful species related to the northern A. qitadrifoaa. At first it 

 was thought that it might be the West Indian A. nivea L., but reference 

 to the plate on which that species was founded, to specimens in the Her- 

 barium of Columbia College, and to descriptions, show that it is not 

 that plant. A. perennis is perhaps its nearest neighbor in some re- 

 spects, but has smaller flowers, and leaves tapering at both ends; be- 

 sides, its range is eastern, and it grows in low ground. 



In the Herbarium of Columbia College is a plant from either western 

 Texas or New Mexico, referable to this species, although the flowers are 

 smaller. Dr. Gray named it A. perennis. In the U. S. National Her- 

 barium is a specimen of A. Texana collected by Lindheimer near New 

 Braunfels, but unnamed if I remember rightly. 



Collected on limestone hillsides about Kerrville, in ground shaded by 

 trees and bushes, and along Town Creek in similar situations, altitude 

 1600-1800 feet. 



June 14 (1859). 



ASCLEPIODORA A. Gray, Proc. Am. Acad. 12: 66 (1876). 



Asclepiodora decumbens (Nutt.) A. Gray, Proc. Am. Acad. 12: 

 66 (1876). 



Anantherix decumbens Nutt. Trans. Am. Phil. Soc. (II.) 5 : 202 



(1833-37)- 



Rather abundant in dry, stony soil about Kerrville. 

 April 23 (1631) ; type locality, "near the confluence of the Kiamesha 

 and Red rivers." 



Asclepiodora viridis (Walt.) A. Gray, Proc. Am. Acad. 12 : 66 



(1876). 



Asclepias viridis Walt. Fl. Car. 107 (1788). 



Occasional in rich ground near Kerrville, especially in wooded pasture 

 land. Some forms had narrow leaves approaching those of A. decum- 

 bens. 



May 8 (1722); type locality, Carolina. 



ACERATES Ell. Bot. S. C. & Ga. i : 316 (1817;. 

 Acerates viridiflora (Raf.) Eaton, Man. Ed. 5, 90 (1829). 

 Asclepias viridiflora Raf. Med. Rep. (II.) 5 : 360 (1808). 

 Scarce, along the steep, stony left bank of the Guadalupe at Kerrville, 

 altitude 1630 feet. 

 June 26 (1913). 



