Von Coryphantha Scheeri (Kuntze) L
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Lithops Flowering Stones Pdf
Lithops flowering stones pdf Continue Lithops Blossom Stones Desmond T Cole and Naureen A.Cole 261 pages, hardback, ISBN 88-900511-7-5 (First pubished in csSA Journal and reprinted in the Mesemb Study Group Newsletter.) When first published in 1988 Lithops Flowering Stones was widely recognized as a unique fine achievement. It was soon sold out, making this new enlarged and relatively inexpensive version even more desirable. Note the co-authorship: the irreplaceable Naurin Cole finally appears on the front page with her more public husband. Seventeen years is a long time in botanical life, but there was relatively little to renew; only three previously unknown species came to light. Two of them are included here, reports of the fourth and fifth being vague as models of the third, the enigmatic little Namibian, who appeared too late for inclusion in this book. Otherwise the perfectly polished text is worth as it was, with little tweaks here and there. I only want the book to be expanded to include old Cole essays published in magazines now hard to obtain. Many of them have clarified the mysteries left by G.K. Ell, the chaotically astute author of the first full-scale work on Lithops. The essays are reflected, but not necessarily summarized in the texts of 1988 and 2005. Physically, the new edition is a big improvement over its predecessor. It has grown twice as much, mainly due to the fascinating addition of habitat photos for each species and all but two subspecies. Unusually, lithops are an expression of specific niches - those who doubt that Desmond Cole's images of L.comptonii var should be tested. -
Phylogenetic Relationships in the Southern African Genus Drosanthemum (Ruschioideae, Aizoaceae)
Phylogenetic relationships in the southern African genus Drosanthemum (Ruschioideae, Aizoaceae) Sigrid Liede-Schumann1, Guido W. Grimm2, Nicolai M. Nürk1, Alastair J. Potts3, Ulrich Meve1 and Heidrun E.K. Hartmann4,† 1 Department of Plant Systematics, University of Bayreuth, Bayreuth, Germany 2 Unaffiliated, Orléans, France 3 African Centre for Coastal Palaeoscience, Nelson Mandela University, Port Elizabeth, Eastern Cape, South Africa 4 Department of Systematics and Evolution of Plants, University of Hamburg, Hamburg, Germany † Deceased. ABSTRACT Background. Drosanthemum, the only genus of the tribe Drosanthemeae, is widespread over the Greater Cape Floristic Region in southern Africa. With 114 recognized species, Drosanthemum, together with the highly succulent and species-rich tribe Ruschieae, constitute the `core ruschioids' in Aizoaceae. Within Drosanthemum, nine subgenera have been described based on flower and fruit morphology. Their phylogenetic relationships, however, have not yet been investigated, hampering understanding of monophyletic entities and patterns of geographic distribution. Methods. Using chloroplast and nuclear DNA sequence data, we performed network- and tree-based phylogenetic analyses of 73 species of Drosanthemum with multiple accessions for widespread species. A well-curated, geo-referenced occurrence dataset comprising the 134 genetically analysed and 863 further accessions was used to describe the distributional ranges of intrageneric lineages and the genus as a whole. Results. Phylogenetic inference supports nine clades within Drosanthemum, seven of which group in two major clades, while the remaining two show ambiguous affinities. The nine clades are generally congruent to previously described subgenera within Submitted 8 November 2019 Accepted 26 March 2020 Drosanthemum, with exceptions such as cryptic species. In-depth analyses of sequence Published 8 May 2020 patterns in each gene region were used to reveal phylogenetic affinities inside the Corresponding author retrieved clades in more detail. -
Ruschioideae, Aizoaceae)
bioRxiv preprint doi: https://doi.org/10.1101/824623; this version posted November 6, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Phylogenetic relationships in the southern African genus 2 Drosanthemum (Ruschioideae, Aizoaceae) 3 Sigrid Liede-Schumann1, Guido W. Grimm2, Nicolai M. Nürk1, Alastair J. Potts2, Ulrich Meve1, Heidrun E.K. 4 Hartmann4 5 1 Department of Plant Systematics, University of Bayreuth, Bayreuth, Bavaria, Germany 6 2 unaffiliated, Orléans, France 7 3 African Centre for Coastal Palaeoscience, Nelson Mandela University, Port Elizabeth, Eastern Cape, 8 South Africa 9 4 formerly Department of Systematics and Evolution of Plants, University of Hamburg, Hamburg, 10 Germany; deceased 11 July 2016 11 12 Corresponding author: 13 Sigrid Liede-Schumann 14 Universitätsstrasse 30, 95440 Bayreuth, Bavaria, Germany 15 Email address: [email protected] 16 17 1 bioRxiv preprint doi: https://doi.org/10.1101/824623; this version posted November 6, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 18 Abstract 19 Background. Drosanthemum, the only genus of the tribe Drosanthemeae, is widespread over the 20 Greater Cape Floristic Region in southern Africa. With 114 recognized species, Drosanthemum 21 together with the highly succulent and species-rich tribe Ruschieae constitute the ‘core 22 ruschioids’ in Aizoaceae. -
Bollettino Dei Musei E Degli Istituti Biologici Dell‘Università Di Genova Published Since 1889
BOLLETTINO DEI MUSEI E DEGLI ISTITUTI BIOLOGICI DELL‘UNIVERSITÀ DI GENOVA PUBLISHED SINCE 1889 EDITORIAL BOARD GIANCARLO ALBERTELLI ATTILIO ARILLO RICCARDO CATTANEO VIETTI MAURO GIORGIO MARIOTTI LIDIA ORSI RELINI MARIO PESTARINO ROBERTO PRONZATO SILVIO SPANÒ VOLUME 73 – 2011 PUBLISHED ON LINE – www.bmib.it DIRETTORE RESPONSABILE LORIS GALLI ——————————————————————————– Registrato al Tribunale di Genova al n. 257 in data 26 marzo 1953 ISSN 0373-4110 106° Congresso Nazionale della Società Botanica Italiana Genova, 21- 23 settembre 2011 Riassunti dei contributi scientifici A cura di Giuseppina Barberis e Maria Angela Guido Con il contributo di Boll. Mus. Ist. Biol. Univ. Genova, 73, 2011 5 106° Congresso Società Botanica Italiana – Genova 21-23 settembre 2011 Boll. Mus. Ist. Biol. Univ. Genova, 73, 2011 6 SOCIETÀ BOTANICA ITALIANA Consiglio Direttivo Francesco Maria Raimondo (Presidente), Alessandro Bruni (Vice Presidente), Consolata Siniscalco (Segretario), Marco Fornaciari da Passano (Economo), Bruno Foggi (Bibliotecario), Maria Beatrice Bitonti (Consigliere), Lucia Colombo (Consigliere) 106° CONGRESSO NAZIONALE DELLA SOCIETÀ BOTANICA ITALIANA Comitato scientifico Carlo Andreoli, Alberto Bianchi, Edoardo Biondi, Beatrice Bitonti, Carlo Blasi, Alessandro Bruni, Donato Chiatante, Lucia Colombo, Bruno Foggi, Marco Fornaciari da Passano, Giuseppe Giaccone, Paolo Grossoni, Mauro G. Mariotti, Enio Nardi, Silvano Onofri, Carlo Pasini, Pietro Pavone, Ferruccio Poli, Francesco M. Raimondo, Consolata Siniscalco, Giuseppe Venturella Comitato organizzatore -
Plant Diversity Patterns of Domestic Gardens in Five Settlements of South Africa
Plant diversity patterns of domestic gardens in five settlements of South Africa E Davoren 13087452 Thesis submitted for the degree Philosophiae Doctor in Environmental Sciences at the Potchefstroom Campus of the North-West University Promoter: Prof SS Cilliers Co-promoter: Prof SJ Siebert May 2017 Abstract As urbanisation increases globally, domestic gardens are becoming increasingly important in terms of ecosystem service provisioning, biodiversity conservation and human health and well- being. Individually gardens are small, but collectively they comprise substantial proportions of both rural and urban areas and consequently they provide green corridors for the movement of wildlife through the urban matrix. The aim of this thesis was to collect and compare information on the flora present in the domestic gardens of five different settlements across South Africa (Tlhakgameng, Ganyesa, Ikageng, Potchefstroom and Roodepoort) and to determine if the garden management practices and socioeconomic status of householders influences the plant species richness and diversity of these domestic gardens. Additionally, the plant diversity patterns of different land-use types were compared with those of the sampled domestic gardens within each settlement. In comparison with other land-use types, domestic gardens contribute greatly to the overall species richness of both urban and rural settlements. A total of 1424 species were recorded in 598 sample sites for all five settlements and 1524 species were recorded in 256 domestic gardens. The majority of species recorded in the domestic gardens were alien cultivated, while the natural areas contained mostly indigenous species in all five settlements. However, despite the fact domestic gardens provide habitats for biodiversity conservation and support the livelihoods of householders, by introducing and spreading alien species, gardens could threaten natural ecosystems and their services.