Anotaciones Sobre Lasiopogon Muscoides (Desf.) Dc
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Anotaciones Sobre Lasiopogon Muscoides (Desf.) Dc
Flora Montiberica 57: 39-44 (24-V-2014). ISSN 1138-5952, ed. digital: 1998-799X ANOTACIONES SOBRE LASIOPOGON MUSCOIDES (DESF.) DC. (COMPOSITAE) EN LA COMUNIDAD VALENCIANA Manuel B. CRESPO* & Ximena GIRÁLDEZ** * CIBIO, Instituto de la Biodiversidad, Universidad de Alicante. Apartado 99. E-03080 Alicante. [email protected] ** Dpto. de Botánica, Facultad de Biología, Universidad de Salamanca, Avda. Licenciado Méndez Nieto, s/n. E-37007 Salamanca. [email protected] RESUMEN: Se dan a conocer nuevos datos sobre Lasiopogon muscoides, planta autóctona de la flora de la Comunidad Valenciana (E de España), en cuyas comarcas centrales alcanza su límite septentrional de distribución. Se aporta por primera vez in- formación concreta sobre su ubicación y su comportamiento ecológico y fitosocioló- gico. Además, dada su rareza y originalidad en el conjunto de la flora de este territorio, se propone su inclusión en el Catálogo Valenciano de Especies de Flora Amenazadas con la categoría “en peligro de extinción”. Palabras clave: Lasiopogon, corología, ecología, fitosociología, conservación, Comunidad Valenciana, España. ABSTRACT: Notes on Lasiopogon muscoides (Desf.) DC. (Compositae) in the Valencian Community. New data are reported on Lasiopogon muscoides in the Va- lencian Community (E of Spain), a territory in which its northernmost distribution is found. Data are shown for the first time on the location of the known populations of this native plant, as well as its ecological and phytosociological behaviour. Further- more, Lasiopogon muscoides is proposed to be included in the Valencian Catalogue of Threatened Plant Species, as “in peril of extinction”, due to the rarity and originality of its populations in the Valencian Community. -
Pollen Morphology of Tribes Gnaphalieae, Helenieae, Plucheeae and Senecioneae (Subfamily Asteroideae) of Compositae from Egypt
American Journal of Plant Sciences, 2011, 2, 120-133 doi:10.4236/ajps.2011.22014 Published Online June 2011 (http://www.SciRP.org/journal/ajps) Pollen Morphology of Tribes Gnaphalieae, Helenieae, Plucheeae and Senecioneae (Subfamily Asteroideae) of Compositae from Egypt Ahmed Kamal El-Deen Osman Faculty of Science, Botany Department, South Valley University, Qena, Egypt. Email: [email protected] Received October 10th, 2010; revised December 9th, 2010; accepted December 20th, 2010. ABSTRACT POLLEN morphology of twenty five species representing 12 genera of tribes Gnaphalieae, Helenieae, Plucheeae and Senecioneae (Asteroideae: Asteraceae) was investigated using light and scanning electron microscopy. The genera are Phagnalon, Filago, Gnaphalium, Helichrysum, Homognaphalium, Ifloga, Lasiopogon, Pseudognaphalium, Flaveria, Tagetes, Sphaeranthus and Senecio. Two pollen types were recognized viz. Senecio pollen type and Filago pollen type. Description of each type, a key to the investigated taxa as well as LM and SEM micrographs of pollen grains are pro- vided. Keywords: Pollen, Morphology, Asteroideae, Asteraceae, Egypt 1. Introduction ture involves the foot layer and the outer layer of the endexine and the endoaperture involves the inner layer of Gnaphalieae, Helenieae, Plucheeae and Senecioneae (As- the endoxine. The intine is thickened considerably in teroideae: Asteraceae) are of the well represented tribes Anthemideae near the aperture. Reference [8] described in Egypt, where 12 genera with about thirty five species are native in -
Numerical Taxonomic Study of Some Tribes of Compositae (Subfamily Asteroideae) from Egypt
Pak. J. Bot., 43(1): 171-180, 2011. NUMERICAL TAXONOMIC STUDY OF SOME TRIBES OF COMPOSITAE (SUBFAMILY ASTEROIDEAE) FROM EGYPT A. K. OSMAN Department of Botany, Faculty of Science, South Valley University, Qena, Egypt. Abstract A systematic study of 25 taxa belonging to 12 genera of tribes Gnaphalieae, Helenieae, Plucheeae and Senecioneae of Compositae from Egypt was conducted by means of numerical analysis based on 19 main pollen grains characters. On the basis of UPGMA (Unpaired Group Method off Averaging) clustering and PCO (Principal Component Analysis), two main groups and five subgroups are recognized. Introduction The Compositae (Asteraceae) is the largest family of plants, comprises of 1590 genera and around 23,600 known species arranged in 3 subfamilies, Asteroideae, Cichorioideae and Barnadesioideae and 17 tribes (Bremer, 1994; Bremer & Jansen 1992). Tribe Gnaphalieae is one of the largest in the family, with more than 180 genera and 2000 species. Most Gnaphalieae are characterized by a two-layered pollen sexine with an outer baculae and an inner perforated layer. The Gnaphalieae are subdivided into five subtribes (Anderberg, 1991a). In subtribe Gnaphaliinae, the two largest genera are Helichrysum and Gnaphalium, with hundreds of species and with many closely related segregate genera. Classification problems within the tribe are dominated by the difficulties in generic delimitation of Helichrysum and Gnaphalium. The Helenieae comprise a little more than 800 species in 110 genera, are often herbs. Some species have become naturalized as weeds in most parts of the world, eg., Tagetes minuta L. (Bierner, 1989). The widespread, familiar genera of the Helenieae are Flaveria, Helenium, Pectis and Tagetes. -
Asteraceae) from Pakistan and Kashmir
INT. J. BIOL. BIOTECH., 13 (2): 183-191, 2016. RECEPTACLE MICRO-CHARACTERS AND THEIR TAXONOMIC SIGNIFICANCE FOR THE TRIBE GNAPHALIEAE (ASTERACEAE) FROM PAKISTAN AND KASHMIR Rubina Abid and Afsheen Ather Department of Botany, University of Karachi, Karachi-75270, Pakistan. Corresponding author’s e-mail: [email protected] ABSTRACT Micro-characters of receptacle were studied for 42 taxa distributed in 11 genera viz., Anaphalis DC., Cymbolaena Smoljan, Filago L., Gamochaeta Wedd., Gnaphalium L., Homognaphalium Kirp., Ifloga Cass., Lasiopogon Cass., Leontopodium R.Br.ex Cass., Phagnalon Cass. and Pseudognaphalium Kirp. of the tribe Gnaphalieae (Asteraceae) by using light (LM) and scanning electron microscopy (SEM). A variety of receptacular surfaces viz., alveolate, areolate, fimbrillate, foveolate and scorbiculate are found which could be significantly used as an additional tool for the generic and specific delimitation within the tribe Gnaphalieae. Key-words: Receptacle, Gnaphalieae, Asteraceae, Kashmir, Pakistan. INTRODUCTION Gnaphalieae is a tribe of the family Asteraceae. In Pakistan it is represented by 42 taxa distributed in 11 genera viz., Anaphalis DC., Cymbolaena Smoljan, Filago L., Gamochaeta Wedd., Gnaphalium L., Homognaphalium Kirp., Ifloga Cass., Lasiopogon Cass., Leontopodium R.Br.ex Cass. Phagnalon Cass. and Pseudognaphalium Kirp. The introduction of various micro-morphological characters has made positive impact for the identification and classification of various taxa of the family Asteraceae, such as the use of ligule micro-characters (Baagoe, 1978), palynology (Erdtman, 1952; Vincent and Norris,1989; Abid and Qaiser, 2002; Liu et al.,2002) and cypsela morphology (Haq and Godward, 1984; Abid and Ali, 2010). However, the receptacular characters did not receive due attention in spite of stability as important character, except some of the studies of Small (1919), Anderberg (1991), Bremer (1994) and Abid et al. -
Pseudognaphalium Aldunateoides Back in Gnaphalium (Compositae: Gnaphalieae)
Collectanea Botanica 37: e012 enero-diciembre 2018 ISSN-L: 0010-0730 https://doi.org/10.3989/collectbot.2018.v37.012 Pseudognaphalium aldunateoides back in Gnaphalium (Compositae: Gnaphalieae) A. ACOSTA-MAINDO1 & M. GALBANY-CASALS1,2 1 Unitat de Botànica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Facultat de Biociències, Universitat Autònoma de Barcelona, ES-08193 Bellaterra, Spain 2 Sistemática y Evolución de Plantas Vasculares (Universitat Autònoma de Barcelona), Unidad Asociada al CSIC ORCID iD. A. ACOSTA-MAINDO: http://orcid.org/0000-0002-3619-8181, M. GALBANY-CASALS: http://orcid.org/0000-0002-7267-3330 Author for correspondence: M. Galbany-Casals ([email protected]) Editor: A. Susanna Received 11 May 2017; accepted 10 December 2017; published online 12 July 2018 Abstract PSEUDOGNAPHALIUM ALDUNATEOIDES BACK IN GNAPHALIUM (COMPOSITAE: GNAPHALIEAE).— Generic classification of some members of the tribe Gnaphalieae (Compositae) and in particular the generic delimitation of the old genus Gnaphali- um has been long problematic. The genus Pseudognaphalium was first split from Gnaphalium based on morphology and later supported by molecular phylogenies. However, the generic identity of some species remains doubtful. Here we provide a morphological study of Pseudognaphalium aldunateoides, which is compared with the type species of Gnaphalium (Gnaphalium uliginosum) and Pseudognaphalium (Gnaphalium oxyphyllum). We also include the three species in a nuclear ribosomal DNA (nrDNA) and a plastid (cpDNA) molecular phylogeny of the tribe Gnaphalieae. Our results show that P. aldunateoides has a dimorphic pappus, character not present in the genus Pseudognaphalium but characteristic of the genus Gnaphalium. It also shows a stereome with intermediate features between the undivided stereome typical of Gnaphalium and the fenestrated stereome typical of Pseudognaphalium. -
Cassini's Compositae Genera
Flann & al. • Cassini’s Compositae genera TAXON 59 (4) • August 2010: 1206–1244 Cassini’s Compositae genera: A nomenclatural and taxonomic assessment Christina Flann,1 Werner Greuter2 & D.J. Nicholas Hind3 1 Netherlands Centre for Biodiversity Naturalis (section NHN), Biosystematics Group, Wageningen University, Generaal Foulkesweg 37, 6703 BL Wageningen, the Netherlands 2 Botanischer Garten und Botanisches Museum Berlin-Dahlem, Freie Universität Berlin, Königin-Luise-Straße 6–8, 14195 Berlin, Germany 3 The Herbarium, Library, Art & Archives, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, U.K. Author for correspondence: Christina Flann, [email protected] Abstract Work on the Global Compositae Checklist has highlighted uncertainties and errors in the nomenclatural parameters of many genera and subgenera described by Henri Cassini. Problems concern rank (subgenus vs. genus); type designation; cor- rect place of valid publication; alternative names; and other miscellaneous issues. An annotated list with correct nomenclatural information for 391 generic names or designations is provided, including types (newly designated here for 17 names) and one new combination (Gyptis tanacetifolia). The current taxonomic disposition of Cassini’s genera and the accepted names for the listed typonyms are consistently mentioned. The familiar names Felicia and Chrysopsis, already conserved, are threatened by unlisted earlier synonyms, and currently used Fulcaldea turns out to be illegitimate. Proposals to deal with these problems by conservation are being presented separately. Keywords Asteraceae; conservation; genera; nomenclature; subgenera; typification INTRODUCTION of valid publication for many of Cassini’s generic names, as well as their nomenclatural status and the identity of their type. Henri Cassini is considered the founder of modern syn- These problems have come to light with incipient work on a antherology (the study of Compositae or Asteraceae; King & Global Compositae Checklist (GCC, www.compositae.org/ Dawson, 1975). -
Plant Species of the Sperrgebiet (Diamond Area 1)
DINTERIA No. 29:79-109 Windhoek, Namibia – May 2004 Plant species of the Sperrgebiet (Diamond Area 1) Antje Burke1 & Coleen Mannheimer2 1P.O. Box 90230, Klein Windhoek, Namibia, Tel: +264-61-223739, Fax: +264-61-227906, e-mail: [email protected] 2National Botanical Research Institute of Namibia, P/Bag 13184, Windhoek, Namibia, Tel: +264-61-2022012, email: [email protected] Abstract Based on specimen records, published sources and own observations, an updated list of plant species is presented for the Sperrgebiet, the southwestern corner of Namibia. This area is in the transitional zone of winter and summer rainfall in Namibia and a remarkable 1038 species of flowering plants, 13 ferns and 22 mosses and their relatives occur. This comprises nearly 25% of the entire flora of vascular plants in Namibia and some 21% of the plant diversity of the Succulent Karoo Biome. We conclude that the Sperrgebiet is undoubtedly one of Namibia’s prime plant diversity hotspots. Zusammenfassung Wir stellen hier eine neue Liste von Pflanzen vor, die im Sperrgebiet, dem südwestlichen Teil Namibias vorkommen. Diese Liste basiert auf Herbariumbelegen, veröffentlichter Literatur und unseren eigenen Beobachtungen. Eine bemerkenswerte Vielfalt von Arten – 1038 Blütenpflanzen, 13 Farne und 22 Moose und verwandte Arten – kommen in diesem Übergangsgebiet von Sommer- und Winterregen vor. Das sind beinah 25% der gesamten Flora des Landes und machen das Sperrgebiet damit eindeutig zu einem Diversitätszentrum von Pflanzen in Namibia. Keywords: Mesembryanthemaceae, Namibia, species diversity, southern Namib, Succulent Karoo Biome Introduction The Sperrgebiet (Diamond Area 1) comprises Namibia’s section of the Succulent Karoo Biome (Rutherford 1997), a biodiversity hotspot of global significance (Myers et al.