Asclepias,] ASCLEPIADE^E. 



53 



3. A, Douglasii; caule subsimplici, foliis cordato-ovatis acutis subtus ambellis multifloris 

 calyce corollisque dense tonientosis, coronse foliolis ovatis longe acuminatis cornu longi- 

 oribus intus bidentatis. (Tab. CXLII.) 



Hab, On low points of land on the banks of streams, west side of the Rocky Mountains ; rare. 

 Douglas. — Leaves somewhat resembling the last species, but broader and more coriaceous. The flowers 

 thrice as large, and also remarkable for the great length of the coronal leaflet. 



Tab. CXLII.— i^j^. 1, Flower ; Jig, 2, Leaflet of the corona with its horn. 



4. A. nivea; caule erecto simplici, foliis lato-lanceolatis acuminatis membranaceis glabris 

 subtus pallidioribus, umbellis multifloris laxis, corona? foliolis truncatis dentatis cornu bre- 

 vioribus, folliculis laevibus, — Linn, — Bot, Mag. t. 1187. Pursh, FL Am. v, \. p. 181. — 

 P. phytolaccoides. Lyon, — Pursh, FL Am, vA. p. 180. Elliott^ Carol r. 1. /?. 319. Torrey^ 

 FL V. \,p. 280. 



Hab. Canada. JDr, Holmes. — I have received the fruit, which is very rare and had not been seen by 

 Dr. Torrey, from Dr. Darlington. The figure in the Bot. Magazine is excellent; and I think I am correct 

 in uniting Pursh's A, phytolaccoides with A. nivea. 



5. A, viridijiora; caule simplici pubescente, foliis ovalibus oblongis lanceolatisve subses- 

 silibus apiculatis subtus praecipue pubescentibus, umbellis lateralibus densissime multifloris 

 subsessilibus, coronse foliolis oblongis retusls erectis appressis dorso caualiculato longitudine 

 columnar cornu nuUo. (Tab. CXLIII. A.) — Raf, — Pursh^ FL Am, v, 1. p, 181. Torrey^ 

 FL V, 1. /?. 264. — A. obovata. EIL — 0, lanceolata; foliis elongato-lanceolatis crispatis. 

 (Tab. CXLIII. B.) — A, longifolia. Mich, ? — A. lanceolata. Ivesj in Sillim, Journ, 



Hab. Headof Lake Erie. Mr.Goldie. About Carlton House Fort, both a. and /3. Dr, Richardson, /3. 

 Banks of the Red River. Douglas, — Exceedingly variable in the form and length of its leaves. The species 

 agrees with Gomphocarpus in the absence of the horn to the leaflets of the corona, but differs iu the 

 smooth follicles. The leaflets of the corona are singularly erect, oblong, retuse. channelled down the back ; 

 the margins incurved and united by their lower half with the neck of the column, each having a small 

 auricle on either side, at the top of the juncture. 



Tab. CXLIII.— Ftp. 1, Flower ;Jig. 2, Portion of the corona, seen from within •.—magnified. 



6. A. incarnata; pubescens vel glabra erecta ramosa, foliis oblongis lanceolatisvcj um- 

 bellis terminalibus plurimis saepe geminis, columna elongata, coronee foliolis erectis ovali- 

 bus obtusis cornu subulato incurvo brevioribus. — L, — Mich, Am. v, I. p. 115. Elliott, 

 Carol, V. 1. p. 320, Bot, Reg, L 250. Torrey, FL v. 1. ;>. 281. 



Hab. Throughout Canada to the Saskatchawan. Dr. Richardson, Drummond.~-ExtTeme\y variable 

 in the length, and breadth, and downiness of the foliage; generally quite glabrous. Frequently, when the 

 stem is otherwise glabrous, a hairy line runs along one side of it. The figure in Rot. Register is excellent. 

 All that I have received from the American Botanists as A. amfsna, I cannot distinguish specifically from 

 the present; indeed, the species of this genus have been very ill defined, and require careful revision. The 

 leaflets of the corona and the horn appear to afford some of the best marks of distinction. The A, amana 

 of Sweet*s FL Garden, t. 82, seems to me referable to a deep-coloured state of A, Syriaca, 



