Aster.] COMPOSITjE. 



9 



16. A. sagittifolius ; "^ foliis radicalibus petiolatis cordato-subsaglttatis (vel et profunde 

 cordatis) oblongis glabris ina^qualiter serratis margine scabris, caulinis ovato-oblongis in 

 petiolum alatum contractis serratis glabris, caule racemoso-composito, involucro arete im- 

 bricato. Nees.— Willd. Sp. PL v. B. p. 2035. Pursk, Fl. Am. v. 2. p. 551. Nees, AsL p. 

 56. Elliotty Carol, v. 2. p. 362. 



Hab. Lake Huron. Dr. Todd. Montreal. Mr. Cleghom. Red River. Douglas. 



B. Homophylli. 



17. A, Cornuti; foliis oblongis profunde serratis in petiolum attenuatis supra pube minu- 

 tissima adspersis subtus glabris margine scabris, caule ramoso-paniculato, involucro laxo 

 imbricato. Nees. — a. caule nmltifloro, floribus minoribus, radio angustiore, ramis panicula; 

 longioribus erectis. Nees.— Wendl—Nees^ AsL /?. 58.— A, Tradescanti. Hoffin.—A. 

 patulus. La7n. — A. tardiflorus. Herb. Linn, (fide LindL) 



Hab, Canada. Mr. Cleghom. 



18. A. acurninatus ; foliis ovato-lanceolatis serratis in petiolum adnatum decurrentibus 

 supra scabris subtus Isevibus, caule racemoso, ramis brevibus thyrsoideis simplicibusve, 

 involucri laxe imbricati foliolis lanceolatis. Nees.—Mich. Am. v. 2. p. 109. Pursh, FL Am. 

 V. 2. p. 555. Hook. Bot. Mag. t. 2707. Elliott, CaroL v. 2. p. 355. 



Hab. Canada. Mr. Cleghom. Mrs. Sheppard. Lady Dalhousie. Mrs. PercivaL 



\^. A. prcBcox ; foliis ovato-lanceolatis patenti-serratis in petiolum adnatum attenuatis 

 glabris supra in ambitu scabris basin versus ciliatis, radicalibus ovatis petiolatis, caule race- 

 moso, ramis paucifloris basi nudis, involucro laxo subsequali. — Nees. — Willd. En. Hort. BeroL 

 Suppl. p. 58. NeeS} Ast. p. 62, » 



Hab. Fort Franklin, on the Mackenzie River. Dr. Richardson. 



20. A. ciliolatus (Lindl.) ; foliis omnibus ovatis medio argute serratis in petiolum abrupte 

 angustatis ciliatis in ambitu scabris, caule simplici, capitulis axillaribus sessilibus v. brevi- 

 pedicellatis subsoil tariis, involucri foliolis erectis apice membranaceis. LindL MSS. 



Hab. Slave Lake. Dr. Richardson.—*' Valde affinis A. pracoci; differt foliis abrupte nee sensim in 

 petiolum angustatis caulinisque radicalibus conformibus conspicue per totum ambitum ciliatis, capitulis sub- 

 sessilibus dimidio minoribus, involucri foliolis non apice herbaceis, denique statura Immili." LindL— The 

 very few specimens in the Collection are 6-8 inches high, 



* Allied to this is an interesting new species found by Dr. Short, on cliffs of the Kentucky River, which I am anxious 

 should bear the name of its estimable discoverer, an excellent and liberal Botanist. Professor Lmdley has favoured me 



with the following character and remarks ; 



« A. Shortii; foliis subtus pilosiusculis ambitu scabris, caulinis alte cordato-lanceolatis acuminatis pone basin grosse 

 serratis intecn-isve raraulonim cordato-ovatis omnibus petiolatis, petlolis apteris, caule racemoso vel racemoso-composito, 

 involucro imbricato.— Rete foliomm maximum. A. diversifolio proximus, inter earn speciem et A. sayittifoUum collo- 

 candus, foliis omnibus cordatis acuminatis petiolatis petiolisque ne minime quidem alatis apteris distinguendus. " Lvull. 



VOL. ir. 



B 



