ACCESSIONS TO APOCYNUM. 179 



and there sparsely pubescent on the general superficies, but 

 densely so along the conspicuously white and broad veins : 

 flowers smaller than in the allied species, produced in sessile 

 but exclusively terminal cymes ; sepals lance-ovate, short ; 

 corolla with short subcylindric tube and deeply cleft limb, the 

 color apparently pinkish. 



Type in U. S. Herb, from Cockrell, Missouri, 3 July, 1898, 

 B. F. Bush. The leaves of the stem in this are deflexed as in 

 the type to which I liken it ; the flowers also are not so 

 extremely different as they are in, for example, A. medium; 

 but both the foliage, with its strong peculiar veininess, and 

 the strictly terminal inflorescence, seem to claim for the plant 

 the rank of a species. 



Apocynum silvATicdm. Akin to A. androsaemifolium, 

 rather stout, 2 feet high, the stem naked to the middle, there 

 parted into 2 or 3 once or twice dichotomous leafy and flower- 

 ing branches : leaves large for the plant, 2>^ to 3 inches long, 

 1% to 1% inches wide, and widest at the middle, the outline 

 being mostly rhombic-ovate, with here and there one of oval 

 outline, all tapering to the base and short petioled, acute at 

 apex, ascending or somewhat spreading, never drooping, the 

 upper face deep green and glabrous, the lower pale with 

 bloom, also along the veins hirsutulous with white hairs, a 

 few distributed to the general face : cymes more terminal than 

 subterminal, all with long peduncles and numerous pinkish 

 flowers : sepals short, deltoid-ovate ; corolla quite open-cam- 

 panulate and with broad short lobes. 



Joplin, Missouri, B. F. Bush, n. 2271 as in U. S. Herb., 

 collected 7 June, 1909; distributed as A. urceoliferum. to 

 which it is not by any means correctly referable. Rocky Woods 

 are given as its habitat. 



Apocynum ei<l,ipticum. Plant with purple and glabrous 

 stem and branches devoid of bloom ; leaves remarkably firm 

 of texture, fairly subcoriaceous, dark-green above, very pale 

 and glaucous beneath, in outline exactly elliptical, short- 



