NEW TAXA OF SOLENOSTOMA AND PLECTOCOLEA AND OTHER TAXONOMIC NOVELTIES BASED ON STUDY OF COLLECTIONS IN THE NEW YORK BOTANICAL GARDEN HERBARIUM

摘要

Six new taxa are described based on study of Jungermannia s.l. collections in herbarium NY. Solenostoma costaricamim Bakalin, sp. nov. is related to S. crassulum (Nees & Mont.) Steph., from which it differs in plant size, the presence of ventral stolons, perianth shape, spore and elater size. Plectocolea subbalfourii Bakalin, sp. nov. is related to Solenostoma (Plectocolea) balfourii (Vana) Vana, Hentschel & J. Heinrichs, from which it differs in rhizoid features and size of perigynium and midleaf cells. Solenostoma rubrum var. underwoodii Bakalin, van nov., based on Nardia macounii Underwood, nom. nud., differs from m.rubrum in coloration and leaf structure features. Plectocolea yunnanensis Bakalin, sp. nov., belonging to the "Plectocolea truncata'group, differs from related species in leaf structure and rhizoid features. Solenostoma gracillimum subsp. camiguinen.se Bakalin, subsp. nov. differs from the typical variety in perianth and leaf structure features. Solenostoma inundatum var. gran-direte Bakalin, var. nov. differs from the typical variety in leaf structure. Additionally, it was found that the type specimen of Plectocolea micrantha Mitt, is paroicous, not dioicous. Critical study of type specimens of Jungermannia marcescens Mitt, and J.sanguinolentha Griff, showed that these taxa are not conspecific, and the new combination Solenostoma marcescens (Mitt.) Bakalin, comb. nov. is proposed.