ACCESSIONS TO APOCYNUM. 169 



of it, and pedicels as well as calyx tomentose ; sepals lance- 

 ovate, short ; corolla very small, short-cylindric ; follicles 

 short, extended horizontally and nearly straight. 



The type specimens are in my herbarium, sheet 6987, as 

 communicated to me many years since by H. N. Patterson, 

 and were collected long ago in Winnebago Co., Illinois, by 

 M. S. Bebb. Better specimens than mine may perchance 

 exist in other herbaria. A more recent specimen of what may 

 be specifically the same is on my sheet 6988, as distributed from 

 somewhere in Illinois in 1879, by Mr. Eggert of St. Louis; but 

 this, though nearly as tomentose as the type, has a thin foliage. 

 The specimen, however, is in a younger state. 



Apocynum dicTyotum. Evidently tall, rather robust, copi- 

 ously and amply leafy, the stem and branches somewhat red- 

 dened under a nearly white coating of bloom, the main stem 

 also loosely hairy somewhat in lines ; leaves of main stem 

 4 inches long, Ij^ in width near the middle, oblong-oval, at 

 base subcordate, short-petiolate, obtuse at apex and mucronate, 

 the rameal leaves one-third to one-half as large, nearly elliptic, 

 all of a light glaucous hue of green and slenderly whitish- 

 veiny above, beneath very much whitened by bloom as well as 

 by a minute white-setulose indument, this also heightened by a 

 system of prominent finely reticulated whitish veinlets : cyme 

 large, short-peduncled, many-flowered; sepals ovate-lanceolate, 

 not equalling the corolla-tube, pubescent ; corolla small, short- 

 cylindric. 



This species, very beautiful as to singularly whitened and 

 reticulated foliage, occurs in U. S. Herb, only as collected by 

 Mr. A. S. Heller near Suffolk in extreme southeastern Vir- 

 ginia, in June, 1893. 



Apocynum procerum. Very tall and robust, the stem leafy 

 and without a branch for the first 2 feet or more, then with a 

 few strict branches for the flowering, the whole height of the 

 plant 3 to 5 feet, the stem purplish and glaucous, bearing 

 leaves rather approximate and very large, commonly 5 or 6 



