Bryophyte diversity and evolution最新文献

{"title":"A new riverine species of the liverwort Fossombronia (Pelliales, Fossombroniaceae) from Ecuador","authors":"B. Crandall-Stotler, S. Gradstein","doi":"10.11646/BDE.39.1.13","DOIUrl":"https://doi.org/10.11646/BDE.39.1.13","url":null,"abstract":"A large, light green, mat-forming Fossombronia was discovered during explorations in the Rio Anzu Reserve in eastern Ecuador in 2008. The plants were found only on scattered limestone boulders along the Rio Anzu as it flowed through a narrow limestone gorge. A morphological study of specimens collected in 2008, using a combination of optical and scannning electron microscopy, was conducted. A unique suite of characters of this riverine Fossombronia , when compared with those of currently recognized species, supports its recognition as a new species, which is named and described herein as Fossombronia jostii Crand.-Stotl. & Gradst. The restriction of this species to a limestone, riverine habitat is shared by F. texana and F. wrightii , with which it shares some, but not all morphological characters. The impact of a major flooding event on the taxon is discussed, and a key is provided to the six species of Fossombronia currently known from Ecuador.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"39 1","pages":"94-101"},"PeriodicalIF":0.0,"publicationDate":"2017-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11646/BDE.39.1.13","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44737088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is phenotypic variation reflected in habitat connectivity? A morphometric comparison of two moss species from insular and continuous habitats of the Amazon Basin","authors":"Anna Kelly N. C. Da Silva, Cristian S. Dambros, M. Pereira, C. Zartman","doi":"10.11646/BDE.39.1.14","DOIUrl":"https://doi.org/10.11646/BDE.39.1.14","url":null,"abstract":"The influence of habitat connectivity on dispersal limitation and genetic structure in bryophytes is relatively well researched; however, little is known as to how habitat insularity may impact phenotypic divergences on a continental scale. Here we conduct a morphometric analysis of five quantitative gametophytic traits from two Amazonian Calymperaceae ( Syrrhopodon helicophyllus and Calymperes lonchophyllum ) from contrasting habitats (Amazonian white-sands and terra firme forests) to test whether increased habitat insularity is correlated with greater inter-population divergence in phenotypic variation. We also test how much of the phenotypic variation among the two taxa is explained by three environmental variables (altitude, mean annual temperature and mean annual precipitation). The Amazonian species endemic to continuous terra-firme forest ( C. lonchophyllum ) revealed greater geographic structure in phenotypic variation that that of its counterpart ( S. helicophyllus ) of more insular white-sands forest habitats. Furthermore, environmental variables explained more of the phenotypic variation among populations of S. helicophyllus than for those of C. lonchophyllum . We attempt to explain these patterns as a result of either historical factors, divergent adaptive reproductive strategies, phenotypic plasticity and/or differences in the spatial scales of sampling effort among the two species. Understanding the role of habitat heterogeneity on speciation processes is a priority for understanding the origin and maintenance of floristic richness in the Amazon Basin. We propose that bryophyte studies highlighting morphometric data coupled with population genetic structure would greatly contribute to our understanding of evolutionary processes in this megadiverse Biome.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"39 1","pages":"102-114"},"PeriodicalIF":0.0,"publicationDate":"2017-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41332205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure, function and evolution of stomata from a bryological perspective","authors":"Amelia Merced, K. Renzaglia","doi":"10.11646/BDE.39.1.4","DOIUrl":"https://doi.org/10.11646/BDE.39.1.4","url":null,"abstract":"Stomata are key innovations for the diversification of land plants. They consist of two differentiated epidermal cells or guard cells and a pore between that leads to an internal cavity. Mosses and hornworts are the earliest among extant land plants to have stomata, but unlike those in all other plants, bryophyte stomata are located exclusively on the sporangium of the sporophyte. Liverworts are the only group of plants that are entirely devoid of stomata. Stomata on leaves and stems of tracheophytes are involved in gas exchange and water transport. The function of stomata in bryophytes is highly debated and differs from that in tracheophytes in that they have been implicated in drying and dehiscence of the sporangium. Over the past decade, anatomical, physiological, developmental, and molecular studies have provided new insights on the function of stomata in bryophytes. In this review, we synthesize the contributions of these studies and provide new data on bryophyte stomata. We evaluate the potential role of stomata in moss and hornwort life histories and we identify areas that will provide valuable data in ascertaining the evolutionary history and function of stomata across land plants.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"39 1","pages":"7-20"},"PeriodicalIF":0.0,"publicationDate":"2017-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11646/BDE.39.1.4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42619316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Tribute to Janice Glime—A Stalwart Contributor to Bryology","authors":"N. Slack, D. Vitt","doi":"10.11646/BDE.39.1.3","DOIUrl":"https://doi.org/10.11646/BDE.39.1.3","url":null,"abstract":"We are very happy to dedicate this book to Janice M. Glime, Professor Emerita at Michigan Technological University.  Her name is probably familiar to more bryologists around the world that any other.  This is largely a result of her management (since 1996) of Bryonet (bryonet-L@mtu.edu), a wonderful bryophyte email discussion and news blog.  Under Janice’s management, Bryonet subscribers grew from about 170 in 1996 to 1,379 members as of March 2017 (http://iab-bryologists-website.blogspot.com/p/past.html).  Bryonet was originally established by Swedish bryologist Gillis Een in 1991 and then managed by Jan-Peter Frahm from 1991–1996.  Under Janice’s management, Bryonet has flourished and provides a key resource to graduate students and biologists from many continents, allowing persons to find sources, identify specimens, have questions answered, and have serious conversations on a variety of questions and methods related to bryophytes.  She was also a long-time IAB Council member and its president from 2005–2009.  In addition, Janice (pronounced Janeece) has been and continues to compose a comprehensive treatise on Bryophyte Ecology, (digitalcommons.mtu.edu/bryophyte-ecology/).  Details are updated regularly with new information that anyone can download.  This is the only textbook-style treatment that is available for beginning classes in bryology and thanks to Janice is available free on the internet.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"39 1","pages":"4-6"},"PeriodicalIF":0.0,"publicationDate":"2017-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11646/BDE.39.1.3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46696615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Drepanolejeunea glimeae (Marchantiophyta: Lejeuneaceae), a new species from the lowland rainforests of Brunei Darussalam","authors":"R. Zhu, H. Mohamed, Chatchaba Promma, L. Shu, Chao-Xian Zhao, Xia-Fang Cheng","doi":"10.11646/BDE.39.1.7","DOIUrl":"https://doi.org/10.11646/BDE.39.1.7","url":null,"abstract":"A new species, Drepanolejeunea glimeae (Marchantiophyta: Lejeuneaceae), is described and illustrated from Brunei Darussalam. It was discovered in the lowland rainforests in Ulu Temburong. This new species is distinguished by the absence of gynoecial innovations, erectly to obliquely spreading underleaf lobes, large leaf lobule about 1/2 as long as the lobe, acute to obtuse apex of the leaf, occasional occurrence of ribbon-like regenerants at leaf margins, and occasional presence of ocelli in the female bracteole.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"39 1","pages":"38-43"},"PeriodicalIF":0.0,"publicationDate":"2017-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47551496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Colorful Phenology of Five Common Terricolous Mosses in London, England","authors":"J. Duckett, S. Pressel","doi":"10.11646/BDE.39.1.8","DOIUrl":"https://doi.org/10.11646/BDE.39.1.8","url":null,"abstract":"Other than general statements about ‘fruiting’ seasons, published floras provide little or no instructive information on moss phenology. Moreover, detailed primary data on reproductive cycles are limited to a very few mosses and remain unknown for the majority of the commonest species. Thus we recorded, over a three year period, the reproductive stages of five very common mosses ( Bryum capillare, B. radiculosum, Grimmia pulvinata, Schistidium crassipilum and Tortula muralis ) growing on walls in London, England, relying throughout on freshly observed materials rather than dried specimens used in most previous studies. In addition to all the stages visible to the naked eye, which we photographed at regular intervals, specimens were examined microscopically for the presence of viable gametangia, young embryos and the condition of the stomata. Each species had its own distinct phenology and an unique sequence of capsule colour changes. In the two Bryum species, gametangium ontogeny, followed by fertilization, takes place in the spring but the embryos remain dormant until the autumn whereas these stages are autumnal in Grimmia pulvinata, Schistidium crassipilum and Tortula muralis with sporophyte development following immediately. Most stages in sporophyte ontogeny occur over the winter months. The time from embryo formation to spore release ranges from over fifteen months in the two Bryum species down to eight months in Schistidium. In all but this last species there is a delay of up to several months between sporophyte maturation and spore release. In Bryum, hygroscopic movements of the annular cells following heavy rain eventually leads to lid shedding. Over the three years of this study the reproductive cycles were generally the same except that damp weather in the autumn promoted capsule expansion in Grimmia and Schistidium and warm dry weather in the spring hastened capsule maturation in Bryum . Whatever the weather conditions, the stomata of the two Bryum species, Grimmia and Tortula were always open suggesting a primary role in capsule desiccation leading to spore discharge rather than the regulation of gaseous exchange.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"39 1","pages":"44-56"},"PeriodicalIF":0.0,"publicationDate":"2017-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47675285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylogeny of Neckeropsis and Himantocladium (Neckeraceae, Bryophytina)","authors":"Sanna Olsson, J. Enroth, S. Huttunen, D. Quandt","doi":"10.11646/BDE.38.2.4","DOIUrl":"https://doi.org/10.11646/BDE.38.2.4","url":null,"abstract":"Two closely related tropical genera from the pleurocarpous moss family Neckeraceae are revised: the second largest genus in the family, Neckeropsis , currently with 29 species, and Himantocladium , comprising six species. Twenty-one species of Neckeropsis and five of Himantocladium were included in this study, which is based on phylogenetic analyses using sequence level data from the plastid ( rps4 ) -trnT-trnL-trnF cluster and rpl16 as well as nuclear ITS1 & 2. Neckeropsis appeared as polyphyletic. Neckeropsis s. str. comprises 12 species and a further four species, not included in the analysis, are tentatively retained in the genus based on morphology. Four new genera are segregated from Neckeropsis : Pengchengwua (with one sp.), Planicladium (two spp.), Pseudoparaphysanthus (five spp.), and Neckeromnion (five spp.). Neckeropsis gracilis is synonymized with Neckeromnion urocladum and reported for the first time from Laos. Four molecular analyzed species are resolved in the Himantocladium s. str. clade, with a fifth species being added solely on morphological basis. Himantocladium formosicum is transferred to Neckeropsis . Leaf-like paraphyses (ramenta), unique in Neckeropsis s. str. , have evolved two times. In addition, the rare Noguchiodendron sphaerocarpum from the Himalayan region, the single species in its genus, was included in a phylogenetic analysis for the first time and it was found to be closely related to the Asian genus Taiwanobryum .","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"38 1","pages":"53-70"},"PeriodicalIF":0.0,"publicationDate":"2016-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64851480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The first Indian record of Pogonatum marginatum Mitt. (Polytrichaceae) from the Western Ghats","authors":"A. Daniels, K. Kariyappa, J. Hyvönen, N. Bell","doi":"10.11646/BDE.38.2.2","DOIUrl":"https://doi.org/10.11646/BDE.38.2.2","url":null,"abstract":"Pogonatum marginatum has been previously known from Sri Lanka and Vietnam. It was recently collected in the Agasthyamalai Biosphere Reserve in the Western Ghats (Kerala and Tamil Nadu), this being the first record of the plant in India. We provide a detailed description of the species with figures and a photographic plate, plus novel chloroplast gene sequences of the Indian plant, another specimen of the same species, and a close relative.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"38 1","pages":"41-46"},"PeriodicalIF":0.0,"publicationDate":"2016-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64851382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additions to the bryophyte flora of Guadeloupe archipelago (Lesser Antilles)","authors":"Elisabeth Lavocat Bernard, C. Reeb","doi":"10.11646/BDE.38.2.3","DOIUrl":"https://doi.org/10.11646/BDE.38.2.3","url":null,"abstract":"13 liverworts, 6 mosses and 1 hornwort are newly reported from the Guadeloupe archipelago. Mytilopsis albifrons, Plagiochila gymnocalycina var. surinamensis , Prionolejeunea muricatoserrulata and Syrrhopodon cymbifolius, are reported as new from the West Indies.","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"38 1","pages":"47-52"},"PeriodicalIF":0.0,"publicationDate":"2016-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64851423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sporophytes newly found for Taiwanobryum guangdongense (Neckeraceae, Bryophyta) from Taiwan","authors":"H. Akiyama, J. Enroth","doi":"10.11646/BDE.38.1.2","DOIUrl":"https://doi.org/10.11646/BDE.38.1.2","url":null,"abstract":"Female sexual organs and sporophytes of Taiwanobryum guangdongense (Neckeraceae) are reported for the first time. The relatively short and mammillose setae in the upper part and the ovoid to shortly cylindric capsules resemble those of T. mucronatum .","PeriodicalId":93270,"journal":{"name":"Bryophyte diversity and evolution","volume":"102 1","pages":"23-26"},"PeriodicalIF":0.0,"publicationDate":"2016-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64851367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}