1500 



ASTER* lsevis. 

 Smooth Aster. 



SYNGENESIA POLYGAMIA SUPERFLUA. 



Nat. ord. ComtositjE Juss. (Introduction to the natural system of 

 Botany, p. 197.) 



§. Corymbiferee Juss. Astereae Cassini. 

 ASTER.— Supra, vol. Z.fol. 183. 



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

 nescentes ; invohtcra campanulata, squamis exterioribus sensim minoribus, 

 appressis v. erectis. 

 A. Icevis ; glaber, viridis, ibliis anguste lanceolatis stepius integris basi an- 



gustatis acuminatis : superioribus subamplexicaulibus : supremis minoribus, 



involucris obconicis : squamis lineari-lanceolatis, pappo flosculis disci 



secpuali, ovariis glabris. 

 A. lsevis. Linn. sp. pi. 1230. Hort. kew. ed. 1. 3. 206. Willd. sp. pi. 



no. 80. Nees monogr. p. 24. 



Ab Astere cyaneo differt tantilm omnis glaucedinis absentia, foliis magis 

 acuminatis viargine asperioribus : radicalibus angustioribus (serratis v. in- 

 tegris), involucris obconicis nee campanulatis : squamis basi multb minus 

 pallidis, demum Jlosculis radii pallide caeruleis. 



This is so nearly the same as A. cyaneus, that if it were 

 not for its constantly green appearance, and want of glaucous 

 bloom, we should be tempted to consider it a mere variety. 

 It, however, may be further distinguished by its narrower 

 radical leaves, by the more decided acumination of all its 

 leaves, by the involucra being obconical rather than cam- 

 panulate, and by the scales having a much less pale base. 

 The latter characters especially are those which enable us 

 to distinguish the two in a dried state. 



That it is the A. lsevis of the first edition of the Hortus 

 Kewensis we have no doubt, both from the characters 



* See fol. 1487. 

 VOL. XVIII. E 



