

1495 





» 



~5 



) 



• 



ASTER* cyaneus 



Glaucous Aster. 





SYNGENESIA POLYGAMIA SUPERFLUA. 





I 















Nat. ord. Composite Juss. {Introduction to the natural system of 



Botany, p. 197.) 



§. Corymbiferee Juss. Astereae Cassini. 



ASTER.— Suprd, vol. Z.fol. 183. 





A. 



Sect. B. 8. Herbacei; foliorum vence primaries divergentes, v. 

 evanescentes ; involucra campanulata, squamis exterioribus sensim mi" 

 noribus appressis v. erectis. 



purpurascenti-glaucus glaber, foliis inferioribus ovato- v. 



basi petiolatim angustatis : superioribus subam- 



cyaneus ; 

 oblongo-lanceolatis 



plexicaulibus oblongis v. ovatis acutis : supremis minoribus, squamis 

 acutis basi albidis, pappo flosculis disci sequali, ovariis glabris. 

 A. Novi Belgii /3. glaucus. Ait. Kew. ed. 1. vol. 3. p. 206. 



A. cyaneus. 



23. 



Hoffm. phytogr. bldtt. U t. B. f. 1. Nees monog. ast. herb. 



Folia 



A. glaucus. Nees I. c. p. 23. 

 A. bupleuroides. Hort. monsp. 

 A. mutabilis. Hort. berol. 



Omni parte herbaced glaucus, purpureo magis minusve tinctus. Caulis 

 erectus, in culta 2-3-pedalis, in spontaned scepi multb demissior. 

 radicalia nunc subsessilia, basi angustata, serrata, nunc longk petiolata, 

 quibusdam subcordato-oblonga serrata, aliis ovato-lanceolata integerrima ; 

 caulina cum Jigurd turn margine pariter variantia f scepius acuta, aliquandb 

 obtusa, semper subamplexicaulia ; suprema nunc sensim nunc abrupt^ minora, 

 caulinis conformia. Capitula nunc apice ramorum solitaria, nunc geminata, 

 nunc in ramos racemosa, rariUs corymbosa; involucra campanulata, squamis 

 erectis, imbricatis, acutis, apice herbaceis, basi albidis, margine submem- 

 branaceo, exterioribus multb minoribus. Flosculi radii magis minusve intense 

 cyanei 9 involucro longiores, disci lutei submutabiles. 







This appears to be an extremely common North American 

 plant, for it forms a part of almost every collection from 

 the midland districts of the United States. It has been a 



See fol. 1487. 





* 



