Materials toward a revision of Grimmia (Musci: Grimmiaceae): Nomenclature and taxonomy of Grimmia longirostris

Abstract:

Grimmia longirostris Hook, is described and illustrated, and its ecology and phytogeography are considered. A world distribution map is presented. Fifty-five names, at specific and infraspecific rank, are considered synonymous with G. longirostris. Grimmia affinis Hornsch., the name employed for this taxon in the holarctic, is illegitimate and slightly predated by G. longirostris Hook., a name hitherto used only in the Andean region. Cross-section costal morphology is considered the best diagnostic character to distinguish G. longirostris from related species. Other useful features are the long, incrassate and nodulose basal paracostal cells of the lamina, the straight setae, and the compound, revoluble annulus. Grimmia longirostris grows on all continents except Antarctica and Australia-New Zealand. Its absence in these regions seems not to be an artifact of undercollecting. The preferred habitat is acidic rocks in high mountain ranges or latitudes.

Año de publicación:

1998

Keywords:

Fuente:

scopus