52 



ASCLEPIADE^, [Asclepia$ 



3. A* hypericifolium ; foliis cordato-oblongis glabris sessilibus mucronatis, cymis folio 

 brevioribus, calyce tubum corollse aequante. — (Tab. CXL.) — Ait, HorL Kew, v. L/>.304. 

 Purshf FL Am, v. 1. p. 179. Torrey^ FL Am. v. 1. p. 2T6, — A. Sibiricum. Jacq. HorL v, 

 3- p» G6. (non Pall.) — /5. foliis latioribus. 



Hab. Throughout Canada to the Saskatchawan. Dr, Richardson^ Drummond. Lake Huron. Dr, 

 Todd, — /3. West side of the Rocky Mountains. Douglas, — This is a stouter and more upright-growing 

 plant, and less branched, than the preceding ; but the upper leaves are sometimes acute at the base, and 

 dightly stalked, and then it is with difficulty distinguished from A, cannabinum. Of the var, ^. Mr. Doug- 

 las observes that the flax is used by the tribes residing on the west side of the Rocky ^lountains to make 

 their fishing-nets. They are strong, buoyant, and answer the purpose extremely well. 



Tab. CXL.— Fi^. 1. Flower ;^^. 2, Stamens ifig. 3, V\^i\\ x-^magnified. 



Ord. LVIII. ASCLEPIADE^. Br. 



ASCLEPIAS. Br, Ascl. sp. L. 



Corolla 5-paitita, reflexa. Corona summo tubo filamentorum imposita, 5-phy]Ia, foliolis 

 cucullatis, e fundo exerentibus processum aversum corniformem, Antherce membrana ter- 

 minatse. Masses poUinis compressae, apice attenuate affixae, pendulge. Stigma depressum 

 rauticum. Folliculi (plerumque) laeves. Semina coniosa. — Herbse AmericancB erectcb. 

 Folia opposita nunc alterna! vel verticillata, Umbelte interpetiolares, Br. 



Folia semper opposita, 



1. A. Syriaca; caule subsimplici, foliis oblongo-ovalibus ovatisve acutis subtus tomento- 

 sis, umbellis multifloris, coronEe foliolis ovatis obtusis cornu longioribus intus bidentatis, 

 folliculis muricatis. — Linn. — Purshy FL Am, v, I. p. 18L Torrey^ FL v. \, p, 279. — /3. 

 Mich, Am, v. I, p, 114. 



Hab. Canada (Mrs, Percival, Mrs, Shepperd) lo the Saskatchawan. Dr. Richardson^ Drummond. 

 take Huron. Dr, Todd. 



2. A, variegata; caule erecto simplici, foliis ovatis brevi-petiolatis, umbellis terminalibus, 

 coronae foliolis obovatis subcucuUatis patentibus cornu acuminato brevioribus intus basin ver- 

 sus bidentatis. — «. major; foliis utrinque glabris, umbellis densifloris, coronse foliolis late obo- 

 vatis cornu latissimo rostrato. — A. variegata. L. — BoL Mag, t. 1182. Pursh^ FL Am. v. I. 

 p, 181. Elliott, Carol v, 1. p. 317. Torrey, FL v. \,p. 281.— A. hybrida. Mich,—^. mi- 

 nor; umbellis laxis paucifloris, foliis subtus preecipue pubescenti-tomentosis, coronae foliolis 

 obovatis cornu angustiore minus evidenter rostrato. (Tab. CXLI.) 



Hab. /3. Carlton House Fort. Dr. Richardson. Plains of the Red River and banks of the Assinaboine. 

 Dmtglas. — The usual state of this plant I have not seen from British America; nor am 1 sure that I am 

 correct in considering this a variety of that species. It is smaller in every part ; the leaves very downy 

 beneath, and move obtuse at the base ; and there are the differences mentioned above in the inflorescence 

 and flowers. The shape of the horn, however, in the solitary specimen I have from Mr, Douglas, is 

 much broader, and more like that of the true A. variegata, than it is in Mr. Drummond's plants. 



Tab. CXLI.— Ft^. 1, Flower ;Jig. 2, Leaflet of the Corona with its horn .—magnified. 



