6 



COMPOSITE. [Aster. 



(Flares glomerate fastigiato-corymbosi; radii vatde mimtti. Foliis angustis integerrimis, 



Euthamia, Nutt.) 

 28. S- lanceolata; caule erecto glabro ramosissimo, foliis lineari-lanceolatis scabriusculis 

 integerrimis trinerviis, flosculis radii vix disco longioribus. — Linn. — Mant. — Ait Hort Kew. 

 ed. 1. V. 3. p. 214. — Mich, Am. v. 2. /?. 116. (a.) Pursh, Ft. Am. v. 2. p. 540. Rich, in 

 Franhl. \st Journ, ed, 2. App. p. 33. (Etithamia.) — S. graminifolia, Nutt. Gen, Am, v. 2, 

 p. 162. Elliotty Carol, v. 2. p. 391. — /3. foliis angustioribus. S. tenuifolia. Sick, in Frankl. 

 \stJourn. ed, 2. App. p. 33. (non Pursh.) — Chrysocoma graminifolia. Linn. 



Hab. Throughout Canada to lat. 64°. Columbia, Dr. Scouler^ Douglas, — This plant seems univer- 

 sally diffused through all the woody country of North America. I possess it from California and from 

 Louisiana. Dr. Gillies found it at Mendoza, in extra- tropical South America. I have referred the S. tenui' 

 folia of Richardson to a state of this plant, rather than considered it the S. tenuifolia of Pursh, which is a 

 southern plant, its extreme Borthern limit being, I believe, New Jersey. 



53. ASTER.* Ca,ss Nees. (Asteris sp. Z.) 



Radius foemineus fertilis. Involucri foliola vel laxa pleraque foliacea, vel imbricata 

 nervoque medio e basi membranacea in apicis discum herbaceum rhombenm expanso pree- 

 dita. Flo&culi pisci tiibo limboque discretis. Achenia cuneiformia, compressa, glabra, 

 vel pubescentia et hirta. Pappus simplex, persistens, scaber. Receptaculum alveolatum. 



Nees. 



Sect. I. Alpigeni. Nees. Ast. p. 24. 



1. A. alpinus; foliis radicalibus spathulatis caulinisque integerrimis, involucri foliolis 

 lanceolatis laxis, caule uniflora. Nees, — Linn. — Bot. Mag. t. 199. Nees^ Ast. p. 26. 



Hab. On the more elevated of the Rocky Mountains inlat, 54*^. Drummond. — Mr. Lindley marks this 

 " exactly A. alpinus, var, DahuricusP It also precisely corresponds with my Swiss specimens. 



2, A, salsuginosus ; foliis lato-lanceolatis acutis subintegerrimis venosis inferioribus in 

 petiolum longe attenuatis reliquis sessilibus caule uni-paucifloro, involucri squamis linearibus 

 acutis pubescentibus subsquarrosis disco vix duplo, radio plus triplo longioribus. — Rich, in 

 Frankl \st Journ. ed. 2. App. p. 32. Hook. Bot. Mag. t. 2942. Nees^ Ast p. 29.— /S. foliis 



angustioribus. 



Hab. Salt plains of the Athabasca. Dr. Richardson. Rocky Mountains. Drummond, Kotzehue's 

 Sound. Messrs. Lay and Collie. — (i. N. West Coast of America. Mr. Menzies. 



3. A. pygmcBUs; (LindL) foliis ovato-oblongis obtusis integerrimis glabris, caule unifloro 

 villoso, involucro hemispliserico laxo subsquarroso villosissimo, foliolis linearibus obtusis. 

 LindL MSS. 



* The whole of my Collection of this extensive Genus has been named by the kindness of Dr. Boott and Professor 

 Lindley; the farmer of whom may be considered excellent authority for the Linnjipaii and Banksian species: the latter 

 for those of Nees von Esenbeck, whose arrangement I have implicitly followed. Professor Lindley has likewise deter- 

 mined and characterized the new species. For more full characters of the Genus Aster and its divisions, as well as 

 other genera of the Asterea, than I can here give, I must refer to the valuable " Genera et Species Asterearuni" of Dr. 

 Nees von Esenbeck. 



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