| Résumé : |
"The taxonomy, nomenclature and distribution of taxa of the genus Agrostis L. oc-curring in eastern Fennoscandia are treated. After a discussion of the typification of the genus, it is proposed that A. canina L. be conserved as the type species. A morphological description is given for each taxon, and the variation of some characters is illustrated with the aid of photographs and pictorialized scatter diagrams. The synonymy of the different taxa is discussed and numerous typifications of specific and infraspecific names are made. The literature on the cytology and its bearing on the taxonomy of the taxa treated are examined. Some new chromosome counts are reported. The distribution and immigration history of the taxa treated are discussed. Distribution maps are given. Ten interspecific hybrids are reported, two of which occur all over the region and are locally frequent and abundant. The taxa treated are: A. canina L., A. stricta J. F. Gmel. (=A. coarctata Ehrh. ex Hoffm., A. canina ssp. montana Hartm.), A. merlensii Trin. (= A. borealis Hartm.), A. clauata Trin., A. scabra Willd., A. pounetii Willd., A. capillaris L. ( = A. tenuis Sibth.), A . stolonifera L ., A. gigantea Roth var. gigantea, A. gigantea var. repens (Laest.) Widen, A. gigantea var. glaucescens Widen, A. gigatllea var. dispar (Michx) Philipson, A. mertensii X stricta, A . X bjoerkmanii Widen ( = A. capillaris x gigantea), A. x murbeckii Fouillade ( = A. capillaris X stolonijera), A. gig ante a x stolo-nifera, A. canina x stolonifera, A. stolonijera X stricta, A. merlensii X stolonifera, A. gigantea X mertensii, A. capillari s X stricta and A. capillaris X clauata." (source : auteur) |
trié(s) par (Pertinence décroissant(e), Titre croissant(e)) Affiner la rechercheThe Genus Agrostis L. in eastern Fennoscandia. Taxonomy and Distribution / Karl-Gustav Widen in Flora Fennica, n°5 (Année 1971)
