VASCULAR PLANTS OF NORTH DAKOTA 509 
824. Cynopaema androsaemifolium (Linn.) Lunell. 
Apocynum androsaemtfolium Linn. Sp. Pl. 213. (1753). 
St. John, Bottineau, Devils Lake, Butte, Minot, Des Lacs; 
Ranson Co.: Anselm (Brenckle). 
825. Cynopaema cannabinum (Linn.) Lunell. 
Apocynum cannabinum Linn. Sp. Pl. 213. (1753). 
Butte; Missouri River (a narrow-leaved form, perlfaps distinct, 
in the timber). 
826. Cynopaema hypericifolium (Ait.) Tunell. 
Apocynum hypericifolium Art. Hort. Kew I: 304. (1789). 
Leeds, Butte, Devils Lake. 
Family 1o1. ASCLEPIADACEAE Lindl. Nat. Syst. ed. 
Ze 202. (1836): 
AGERAPES Blt. Bot.is. C. & Gal: 376. (1817). 
827. Aecrates viridiflora (Raf.) Eaton, Man. Bot. ed. 5: 
go. (1829). 
Asclepias viridiflora Raf. Med. Rep. (II.) 5: 360. (1808). 
Butte, Pleasant Lake, Sand Hills, Towner, Minot. 
828. Acerates Iversii (Britt.) Woot. & Standl. 
Asclepias lanceolata Ives, Am. Journ. Sci. I: 252. (1819), 
not Walt. (1788). 
Acerates viridiflora Ivesit Britton, Mem. Torr. Bot. Club 5: 
265. (1894). 
Sand Hills, Pleasant Lake. 
829. Acerates linearis (A. Gray) Lunell. 
Acerates viridiflora linearis A. Gray. Syn Fl. II. Part. I: 99. 
(1878). 
Pleasant Lake. 
830. Acerates lanuginosa (Nutt.) Dec. in DC. Prodr. 8: 
523. (1844). 
Ascerates languinosa (Nutt.) Dec. in DC. Prodr. 8: 523. (1844). 
Asclepias lanuginosa Nutt. Gen. I: 168. (1818). 
Minot. 
ASGCLEPIAS. Diosc. 3, ‘106 AoxAémuas, Sibth. Fl. Graeca, 
ibid. Your. Linn.=Ascelepias Vincetoxicum. 
831. Asclepias incarnata Linn. Sp. Pl. 215. (1753). 
Ascletias ircarraia longifolia A. Gray, Syn. Fl. HW, part I: 
99. (1878) 
