Two little known species of Cheilolejeunea, C. microscypha (Hook.f. & Taylor) M.Wigginton, comb. nov. (a reinstated St Helena liverwort), and C. rotalis (Hook.f. & Taylor) M.Wigginton comb. nov., ...endemic to St Helena, South Atlantic Ocean, are described and illustrated, and oil bodies of C. ascensionis (Hook.f. & Taylor) Grolle are newly described and illustrated.
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A new species of Lepidopilidium (Pilotrichaceae, Hookeriales), L. crispifolium, sp. nov. from St Helena, South Atlantic Ocean is described and illustrated.
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Abstract
A new species of Cylindrocolea R. M. Schust. from St. Helena, C. sanctae-helenae M. Wigginton, sp. nov. is described and illustrated. This is the first report of the family Cephaloziellaceae ...from the island.
A working checklist of accepted taxa worldwide is vital in achieving the goal of developing an online flora of all known plants by 2020 as part of the Global Strategy for Plant Conservation. We here ...present the first-ever worldwide checklist for liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) that includes 7486 species in 398 genera representing 92 families from the two phyla. The checklist has far reaching implications and applications, including providing a valuable tool for taxonomists and systematists, analyzing phytogeographic and diversity patterns, aiding in the assessment of floristic and taxonomic knowledge, and identifying geographical gaps in our understanding of the global liverwort and hornwort flora. The checklist is derived from a working data set centralizing nomenclature, taxonomy and geography on a global scale. Prior to this effort a lack of centralization has been a major impediment for the study and analysis of species richness, conservation and systematic research at both regional and global scales. The success of this checklist, initiated in 2008, has been underpinned by its community approach involving taxonomic specialists working towards a consensus on taxonomy, nomenclature and distribution.
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The little known species Kurzia nemoides (Hook.f. et Taylor) Grolle and Lepidozia africana Steph. (Lepidoziaceae) are described and illustrated from St Helena, South Atlantic Ocean. Details are given ...of their distributions on the island, and the differences between related species are discussed. This is the first report of the genus Lepidozia from St Helena.
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Three new species of Cololejeunea, C. dianae M. Wigginton, C. sanctae-helenae M. Wigginton and C. grossestyla M. Wigginton are described and illustrated from St Helena, South Atlantic Ocean. Details ...of their distributions are provided, and differences between the new taxa and other species of Cololejeunea are discussed. This is also the first report of the genus Cololejeunea from St Helena.
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A new species of Lejeunea (Lejeuneaceae) with a hooded lobule, L. sanctae-helenae M. Wigginton, is described and illustrated from St Helena, South Atlantic Ocean. Details of its distribution and ...habitats are provided, and differences between it and other species in the Lejeuneaceae are discussed. This is also the first report of the genus Lejeunea from the island.
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A new species of Amphicephalozia, A. africana Váňa & M. Wigginton from Mt Karisimbi, Rwanda is described and illustrated. This is the third species to be recognised from the genus.
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