Porotrichum saotomense sp. nov. (Neckeraceae) and other additions to the moss flora of São Tomé & Príncipe, Gulf of Guinea, West Africa

Peer reviewe

Contributions to the moss families Neckeraceae and Pterobryaceae of Bhutan

Three species previously thought to be Chinese endemics from the easternmost Himalayas are reported from Bhutan: Shevockia inunctocarpa Enroth & M.C. Ji and Taiwanobryum yunnanense (Enroth) Enroth comb. nov. of the Neckeraceae, and Calyptothecium acostatum J.X. Luo of the Pterobryaceae. The latter, originally described from Xizang, is also reported from Yunnan, China. Additionally, Noguchiodendron sphaerocarpum (Nog.) Ninh & Pócs is reported for the second time (since 1971) from Bhutan.Peer reviewe

Astralagus ertterae (Fabaceae), a New Species from the Southern Sierra Nevada

Astragalus ertterae, a new species from pinyon pine woodlands, southern Sierra Nevada, Kern County, California, is described and illustrated. This remarkable new species is morphologically closest to A. bicristatus in sect. Bicristati but differs in its dwarf stature, pilose indumentum, short peduncles, somewhat smaller flowers, and especially in a pod only half as long and proportionately twice as plump

Dudleya Cymosa Subsp. Costafolia (Crassulaceae), A New Subspecies from the Southern Sierra Nevada, Tulare County, California

Dudleya cymosa subsp. costafolia, a new subspecies from the southern Sierra Nevada, Tulare County, California, is described and illustrated. Along with bright yellow flowers, the cespitose plant produces numerous, small rosettes with rib-shaped linear to linear-oblanceolate leaves, which are unique to the subspecies. The authors have searched numerous other rock outcrops, especially limestone, in the general area for additional plants with no success. Dudleya cymosa subsp. costafolia evidently is restricted to a solitary limestone outcrop north of the South Fork of the Middle Fork of the Tule River

What is Clastobryella tenella M.Fleisch.?

The moss Clastobryella tenella M.Fleisch. based on a collection from Java has remained poorly understood since its original description. Microscopic examination of the type material in the Fleischer Herbarium within the Farlow Herbarium of Harvard University concluded that the exceedingly fragmentary type material best represents juvenile plants of Gammiella tonkinensis (Broth. & Par.) B.C. Tan

Rediscovery of the monospecific moss genus Cyptodontopsis (Cryphaeaceae) in China: a species restricted to flood plain habitats

Peer reviewe

Notes on rediscovery of mosses Anomodon perlingulatus (Anomodontaceae) and Curvicladium kurzii (Neckeraceae) in Yunnan, China

Anomodon perlingulatus Broth. ex P.C. Wu & Y. Jia and Curvicladium kurzii (Kindberg) Enroth are reported as rheophytic mosses for the first time in China. They were so rarely collected that their habitat preferences remained unknown. The newly obtained specimens have expanded our understanding on their morphological variability and ecological preferences. After re-examining the type specimen held in H, the large size of median cells in A. perlingulatus is confirmed to be a measurement error made in the original description. An updated description is provided. Both A. perlingulatus and C. kurzii can be categorized as facultative rheophytes because of the limited number of specimens collected so far. We anticipate that with a better understanding of potential habitats of both species, that more occurrences in the neighboring provinces are likely to be discovered

The long journey of Orthotrichum shevockii (Orthotrichaceae, Bryopsida): From California to Macaronesia

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Biogeography, systematics and taxonomy are complementary scientific disciplines. To understand a species' origin, migration routes, distribution and evolutionary history, it is first necessary to establish its taxonomic boundaries. Here, we use an integrative approach that takes advantage of complementary disciplines to resolve an intriguing scientific question. Populations of an unknown moss found in the Canary Islands (Tenerife Island) resembled two different Californian endemic species: Orthotrichum shevockii and O. kellmanii. To determine whether this moss belongs to either of these species and, if so, to explain its presence on this distant oceanic island, we combined the evaluation of morphological qualitative characters, statistical morphometric analyses of quantitative traits, and molecular phylogenetic inferences. Our results suggest that the two Californian mosses are conspecific, and that the Canarian populations belong to this putative species, with only one taxon thus involved. Orthotrichum shevockii (the priority name) is therefore recognized as a morphologically variable species that exhibits a transcontinental disjunction between western North America and the Canary Islands. Within its distribution range, the area of occupancy is limited, a notable feature among bryophytes at the intraspecific level. To explain this disjunction, divergence time and ancestral area estimation analyses are carried out and further support the hypothesis of a long-distance dispersal event from California to Tenerife IslandThis research was funded by the Spanish Ministry of Education and Science (CGL2007- 61389/BOS) to F.L., the Spanish Ministry of Science and Innovation (CGL2011-28857/BOS) to V.M., the Spanish Ministry of Economy and Competitiveness (CGL2013-43246-P) to R.G., and the Spanish Ministry of Economy, Industry and Competitiveness (CGL2016-80772-P) to I.D. and the Spanish Ministry of Economy and Competitiveness (grants IJCI-2014-19691 and RYC-2016-20506) to J.P. J.P. also received the H2020 Marie Skłodowska-Curie Actions grant 747238. J.M.G-M and A.L-L. are grateful for funding from Parque Nacional del Teide. B.V. benefited from the support of the Ministry of Economy and Competitiveness through grant BES2012-051976 of the Formación de Personal Investigador (FPI) programme. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscrip

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