| Résumé : |
"I here present a study concerning nomenclatural and taxonomical notes on the names Chrysanthemum italicum L., C. achilleae L., C. tanacetifolium Pourr., Pyrethrum cinereum Griseb., P. clusii Fisch. ex Rchb., P. clusii Tausch, P. daucifolium Pers., and P. tenuifolium Ten., all belonging to the critical group of Tanacetum corymbosum. A new infraspecific classification of Tanacetum corymbosum (L.) Sch. Bip. s. l. is proposed recognizing five subspecies on the basis of a morphological study of type material and other specimens. A diagnosic key of the recognized taxa is provided. A nomenclatural change, i.e. T. corymbosum subsp. daucifolium (Pers.) Iamonico comb. nov., is proposed. Lectotypes are designated for the names Chrysanthemum cinereum (specimen preserved at GOET), Chrysanthemum achilleae (Micheli’s illustration), Chrysanthemum italicum (at LINN), Pyrethrum clusii by Rechenbach (Clusius’ image), Pyrethrum tenuifolium (at G) and Pyrethrum clusii by Tausch (Clusius’ image). A neotype was designated for Chrysanthemum tanacetifolium (at P)." (source : auteur) |
trié(s) par (Pertinence décroissant(e), Titre croissant(e)) Affiner la rechercheCompte-rendu de la sortie du 6 juin 1998 dans les coteaux du Layon (Anjou) in E.R.I.C.A., n°11 (Année 1999)
