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Chromatid Abnormalities in Meiosis: a Brief Review and a Case Study in the Genus Agave (Asparagales, Asparagaceae)
Chapter 10 Chromatid Abnormalities in Meiosis: A Brief Review and a Case Study in the Genus Agave (Asparagales, Asparagaceae) Benjamín Rodríguez‐Garay Additional information is available at the end of the chapter http://dx.doi.org/10.5772/intechopen.68974 Abstract The genus Agave is distributed in the tropical and subtropical areas of the world and represents a large group of succulent plants, with about 200 taxa from 136 species, and its center of origin is probably limited to Mexico. It is divided into two subgenera: Littaea and Agave based on the architecture of the inflorescence; the subgenus Littaea has a spicate or racemose inflorescence, while plants of the subgenus Agave have a paniculate inflorescence with flowers in umbellate clusters on lateral branches. As the main conclusion of this study, a hypothesis rises from the described observations: frying pan‐shaped chromosomes are formed by sister chromatid exchanges and a premature kinetochore movement in prophase II, which are meiotic aberrations that exist in these phylogenetic distant species, Agave stricta and A. angustifolia since ancient times in their evolution, and this may be due to genes that are prone to act under diverse kinds of environmental stress. Keywords: tequila, mescal, chromatid cohesion, centromere, inversion heterorozygosity, kinetochore 1. Introduction The genus Agave is distributed in the tropical and subtropical areas of the world and repre‐ sents a large group of succulent plants, with about 200 taxa from 136 species, and its center of origin is probably limited to Mexico [1]. It is divided into two subgenera: Littaea and Agave based on the architecture of the inflorescence; the subgenus Littaea has a spicate or racemose © 2017 The Author(s). -
Tucson Cactus and Succulent Society Guide to Common Cactus and Succulents of Tucson
Tucson Cactus and Succulent Society Guide to Common Cactus and Succulents of Tucson http://www.tucsoncactus.org/c-s_database/index.html Item ID: 1 Item ID: 2 Family: Cactaceae Family: Cactaceae Genus: Ferocactus Genus: Echinocactus Species: wislizenii Species: grusonii Common Name: Fishhook Barrel Common Name: Golden Barrel Habitat: Various soil types from 1,000 Cactus to 6,000 feet elevation from grasslands Habitat: Located on rolling hills to rocky mountainous areas. and cliffs. Range: Arizona, southwestern New Range: Limited to small areas in Mexico, limited extremes of western Queretaro, Mexico. The popula- Texas, Sonora, northwest Chihuahua tion had become very low in num- and northern Sinaloa, Mexico bers over the years but is just Care: An extremely easy plant to grow now beginning to increase due to in and around the Tucson area. It re- protective laws and the fact that Photo Courtesy of Vonn Watkins quires little attention or special care as this plant is now in mass cultiva- ©1999 it is perfectly at home in almost any tion all over the world. garden setting. It is very tolerant of ex- Photo Courtesy of American Desert Care: The Golden Barrel has slow- Description treme heat as well as cold. Cold hardi- Plants ly become one of the most pur- This popular barrel cactus is noted ness tolerance is at around 10 degrees chased plants for home landscape for the beautiful golden yellow farenheit. Description in Tucson. It is an easy plant to spines that thickly surround the Propagation: Propagation of this cac- This plant is most recognized by the grow and takes no special care. -
Dry Forest Trees of Madagascar
The Red List of Dry Forest Trees of Madagascar Emily Beech, Malin Rivers, Sylvie Andriambololonera, Faranirina Lantoarisoa, Helene Ralimanana, Solofo Rakotoarisoa, Aro Vonjy Ramarosandratana, Megan Barstow, Katharine Davies, Ryan Hills, Kate Marfleet & Vololoniaina Jeannoda Published by Botanic Gardens Conservation International Descanso House, 199 Kew Road, Richmond, Surrey, TW9 3BW, UK. © 2020 Botanic Gardens Conservation International ISBN-10: 978-1-905164-75-2 ISBN-13: 978-1-905164-75-2 Reproduction of any part of the publication for educational, conservation and other non-profit purposes is authorized without prior permission from the copyright holder, provided that the source is fully acknowledged. Reproduction for resale or other commercial purposes is prohibited without prior written permission from the copyright holder. Recommended citation: Beech, E., Rivers, M., Andriambololonera, S., Lantoarisoa, F., Ralimanana, H., Rakotoarisoa, S., Ramarosandratana, A.V., Barstow, M., Davies, K., Hills, BOTANIC GARDENS CONSERVATION INTERNATIONAL (BGCI) R., Marfleet, K. and Jeannoda, V. (2020). Red List of is the world’s largest plant conservation network, comprising more than Dry Forest Trees of Madagascar. BGCI. Richmond, UK. 500 botanic gardens in over 100 countries, and provides the secretariat to AUTHORS the IUCN/SSC Global Tree Specialist Group. BGCI was established in 1987 Sylvie Andriambololonera and and is a registered charity with offices in the UK, US, China and Kenya. Faranirina Lantoarisoa: Missouri Botanical Garden Madagascar Program Helene Ralimanana and Solofo Rakotoarisoa: Kew Madagascar Conservation Centre Aro Vonjy Ramarosandratana: University of Antananarivo (Plant Biology and Ecology Department) THE IUCN/SSC GLOBAL TREE SPECIALIST GROUP (GTSG) forms part of the Species Survival Commission’s network of over 7,000 Emily Beech, Megan Barstow, Katharine Davies, Ryan Hills, Kate Marfleet and Malin Rivers: BGCI volunteers working to stop the loss of plants, animals and their habitats. -
Plethora of Plants - Collections of the Botanical Garden, Faculty of Science, University of Zagreb (2): Glasshouse Succulents
NAT. CROAT. VOL. 27 No 2 407-420* ZAGREB December 31, 2018 professional paper/stručni članak – museum collections/muzejske zbirke DOI 10.20302/NC.2018.27.28 PLETHORA OF PLANTS - COLLECTIONS OF THE BOTANICAL GARDEN, FACULTY OF SCIENCE, UNIVERSITY OF ZAGREB (2): GLASSHOUSE SUCCULENTS Dubravka Sandev, Darko Mihelj & Sanja Kovačić Botanical Garden, Department of Biology, Faculty of Science, University of Zagreb, Marulićev trg 9a, HR-10000 Zagreb, Croatia (e-mail: [email protected]) Sandev, D., Mihelj, D. & Kovačić, S.: Plethora of plants – collections of the Botanical Garden, Faculty of Science, University of Zagreb (2): Glasshouse succulents. Nat. Croat. Vol. 27, No. 2, 407- 420*, 2018, Zagreb. In this paper, the plant lists of glasshouse succulents grown in the Botanical Garden from 1895 to 2017 are studied. Synonymy, nomenclature and origin of plant material were sorted. The lists of species grown in the last 122 years are constructed in such a way as to show that throughout that period at least 1423 taxa of succulent plants from 254 genera and 17 families inhabited the Garden’s cold glass- house collection. Key words: Zagreb Botanical Garden, Faculty of Science, historic plant collections, succulent col- lection Sandev, D., Mihelj, D. & Kovačić, S.: Obilje bilja – zbirke Botaničkoga vrta Prirodoslovno- matematičkog fakulteta Sveučilišta u Zagrebu (2): Stakleničke mesnatice. Nat. Croat. Vol. 27, No. 2, 407-420*, 2018, Zagreb. U ovom članku sastavljeni su popisi stakleničkih mesnatica uzgajanih u Botaničkom vrtu zagrebačkog Prirodoslovno-matematičkog fakulteta između 1895. i 2017. Uređena je sinonimka i no- menklatura te istraženo podrijetlo biljnog materijala. Rezultati pokazuju kako je tijekom 122 godine kroz zbirku mesnatica hladnog staklenika prošlo najmanje 1423 svojti iz 254 rodova i 17 porodica. -
Nymphaeaceae
FLORA DEL VALLE DE TEHUACÁN-CUICATLÁN NYMPHAEACEAE INSTITUTO DE BIOLOGÍA UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO 2018 Instituto de Biología Director Victor Manuel G. Sánchez-Cordero Dávila Secretario Académico Atilano Contreras Ramos Secretaria Técnica Noemí Chávez Castañeda EDITORA Rosalinda Medina Lemos Departamento de Botánica, Instituto de Biología Universidad Nacional Autónoma de México COMITÉ EDITORIAL Abisaí J. García Mendoza Jardín Botánico, Instituto de Biología Universidad Nacional Autónoma de México Salvador Arias Montes Jardín Botánico, Instituto de Biología Universidad Nacional Autónoma de México Rosaura Grether González División de Ciencias Biológicas y de la Salud Departamento de Biología Universidad Autónoma Metropolitana Iztapalapa Rosa María Fonseca Juárez Laboratorio de Plantas Vasculares Facultad de Ciencias Universidad Nacional Autónoma de México Nueva Serie Publicación Digital, es un esfuerzo del Departamento de Botánica del Instituto de Biología, Universidad Nacional Autónoma de México, por continuar aportando conocimiento sobre nuestra Biodiversidad, cualquier asunto relacionado con la publicación dirigirse a la Editora: Apartado Postal 70-233, C.P. 04510. Ciudad de México, México o al correo electrónico: [email protected] Autor: Elvia Esparza. Año: 2004. Título: Nymphaea gracilis Zucc. Técnica: Acuarela, pincel seco. Género: Ilustración científica desarrollada para el proyecto: Iconografía y estudio de plan tas acuáti- cas de la Ciudad de México y sus alrededores. Medidas: 38.0 cm largo x 30.0 cm ancho. Colección: obra del Archivo Histórico de la Biblioteca del Instituto de Biología, Universidad Nacional Autónoma de México. Descripción: planta acuática enraizada, de hojas flotantes, dulceacuícola de lagos, ríos, y estanques, se representa la forma de vida, detalle de transición de pétalos a estambres y estami- nodios, fruto, rizoma y detalle del envés de una hoja. -
Spiny Forest Heterogeneity: Implications for Regeneration and Its Detection
Spiny Forest Heterogeneity: Implications for Regeneration and its Detection Catherine Reuter Advisor: Jules Ramangalahy Academic Director: Jim Hansen Spring 2009 1 Acknowledgements I would like to thank Barry Ferguson for helping me originate the idea for this project and for innumerable resources from compasses to aerial maps. I would also like to thank Christian, translator and invaluable field assistant, without whose innovative thinking and possibly photographic memory this project would not of succeeded. 2 Table of Contents Section Page 88 Acknowledgements ________________________________________________ 2 Abstract __________________________________________________________ 4 Introduction _______________________________________________________ 5 Methods __________________________________________________________ 7 Results ___________________________________________________________ 12 Discussion ________________________________________________________ 17 Conclusion ________________________________________________________ 26 Appendix 1: Comprehensive Species List ________________________________ 27 Appendix 2: FTM 1954 Map of Forest Cover _____________________________ 30 Sources Cited _______________________________________________________ 31 3 ABSTRACT This study sought to verify claims made in a recently published paper by Thomas Elmqvist that certain portions of Madagascar’s spiny forest are rapidly regenerating. The study took place in the forest around the village of Manavy located in Central Antandroy, where historical and current -
List of Approved Plants
APPENDIX "X" – PLANT LISTS Appendix "X" Contains Three (3) Plant Lists: X.1. List of Approved Indigenous Plants Allowed in any Landscape Zone. X.2. List of Approved Non-Indigenous Plants Allowed ONLY in the Private Zone or Semi-Private Zone. X.3. List of Prohibited Plants Prohibited for any location on a residential Lot. X.1. LIST OF APPROVED INDIGENOUS PLANTS. Approved Indigenous Plants may be used in any of the Landscape Zones on a residential lot. ONLY approved indigenous plants may be used in the Native Zone and the Revegetation Zone for those landscape areas located beyond the perimeter footprint of the home and site walls. The density, ratios, and mix of any added indigenous plant material should approximate those found in the general area of the native undisturbed desert. Refer to Section 8.4 and 8.5 of the Design Guidelines for an explanation and illustration of the Native Zone and the Revegetation Zone. For clarity, Approved Indigenous Plants are considered those plant species that are specifically indigenous and native to Desert Mountain. While there may be several other plants that are native to the upper Sonoran Desert, this list is specific to indigenous and native plants within Desert Mountain. X.1.1. Indigenous Trees: COMMON NAME BOTANICAL NAME Blue Palo Verde Parkinsonia florida Crucifixion Thorn Canotia holacantha Desert Hackberry Celtis pallida Desert Willow / Desert Catalpa Chilopsis linearis Foothills Palo Verde Parkinsonia microphylla Net Leaf Hackberry Celtis reticulata One-Seed Juniper Juniperus monosperma Velvet Mesquite / Native Mesquite Prosopis velutina (juliflora) X.1.2. Indigenous Shrubs: COMMON NAME BOTANICAL NAME Anderson Thornbush Lycium andersonii Barberry Berberis haematocarpa Bear Grass Nolina microcarpa Brittle Bush Encelia farinosa Page X - 1 Approved - February 24, 2020 Appendix X Landscape Guidelines Bursage + Ambrosia deltoidea + Canyon Ragweed Ambrosia ambrosioides Catclaw Acacia / Wait-a-Minute Bush Acacia greggii / Senegalia greggii Catclaw Mimosa Mimosa aculeaticarpa var. -
Architecture Végétative Et Structures Inflorescentielles Chez Les Didiereaceae De Madagascar
Beitr. Biol. Pflanzen 61, 381 - 400 Architecture végétative et structures inflorescentielles chez les Didiereaceae de Madagascar Par GEORGESCREMERS * et YVES SELL* * (Avec 7 figures) Reçu le 21 Novembre 1985 Zusammenf assuiig Der vegetative Aufbau der Didiereaceen erscheint als sehr mannigfaltig, da sich die 8 untersuchten Arten, 4 Modellen (denen von CORNER,von LEEUWENBERG,von KORmA, und von CHAMPAGNAT)zuordnen lassen, während die komplexe Organisation zweier weiterer Arten nicht einem der zur Zeit beschriebenen Modelle zugeordnet werden konnte. Andererseits ist bei den durch Kurztriebe hervorgebrachten Infloreszenzstrukturen der Thyrsus die fundamentale Blüheinheit. Dieser ist geschlossen (monotel, 4 Arten) oder offen (polytel oder trunkat-monotel? 2 Arten); seine Aggregation in eine dolden- artige, mehr oder weniger bliitenarme Infloreszenz wird bei 5 Arten beobachtet. Das sukzessive Aufblühen, von den ruhenden, ganz an der Basis der Kurztriebe gelegenen Knospen bedingt, wurde bei 7 Arten festgestellt. Abstract The vegetative organization of Didiereaceae seems highly diverse, since of the 8 species studied, 4 models (those of CORNER,LEEUWENBERG, KORIBA and CHAMPAGNAT) were identified, but the complex organization of 2 did not correspond to any of the models so far described. As regards the inflorescence structures established by the short shoots, thyrse is the main flowering unit. It can be either definite (monotelic, 4 species) or indefinite (polytelic or truncate-monotelic?, 2 species), and in 5 species it forms an ombel-like cluster more or less poor in flowers. Gradual flowering, due to rest buds at the very bases of the short shoots, is encountered in 7 species. * Centre ORSTOM, BP 165, 93 323 Cayenne; Guyane Francaise. ** Institut de Botanique, 28 rue Goethe, 67 O00 Strasbourg. -
Cactaceae) with Special Emphasis on the Genus Mammillaria Charles A
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 2003 Phylogenetic studies of Tribe Cacteae (Cactaceae) with special emphasis on the genus Mammillaria Charles A. Butterworth Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Botany Commons, and the Genetics Commons Recommended Citation Butterworth, Charles A., "Phylogenetic studies of Tribe Cacteae (Cactaceae) with special emphasis on the genus Mammillaria " (2003). Retrospective Theses and Dissertations. 565. https://lib.dr.iastate.edu/rtd/565 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. -
Cactus Explorers Journal
Bradleya 34/2016 pages 100–124 What is a cephalium? Root Gorelick Department of Biology and School of Mathematics & Statistics and Institute of Interdisciplinary Studies, Carleton University, 1125 Raven Road, Ottawa, Ontario K1S 5B6 Canada (e-mail: [email protected]) Photographs by the author unless otherwise stated. Summary : There are problems with previous at - gibt meist einen abgrenzbaren Übergang vom tempts to define ‘cephalium’, such as via produc - photosynthetisch aktiven Gewebe zum nicht pho - tion of more hairs and spines, confluence of tosynthetisch aktiven und blütentragenden areoles, or periderm development at or under - Cephalium, die beide vom gleichen Triebspitzen - neath each areole after flowering. I propose using meristem abstammen. Cephalien haben eine an - the term ‘cephalium’ only for a combination of dere Phyllotaxis als die vegetativen these criteria, i.e. flowering parts of cacti that Sprossabschnitte und sitzen der vorhandenen have confluent hairy or spiny areoles exterior to a vegetativen Phyllotaxis auf. Wenn blühende Ab - thick periderm, where these hairs, spines, and schnitte nur einen Teil der oben genannten Merk - periderms arise almost immediately below the male aufweisen, schlage ich vor, diese Strukturen shoot apical meristem, and with more hairs and als „Pseudocephalien“ zu bezeichnen. spines on reproductive parts than on photosyn - thetic parts of the shoot. Periderm development Introduction and confluent areoles preclude photosynthesis of Most cacti (Cactaceae) are peculiar plants, cephalia, which therefore lack or mostly lack even for angiosperms, with highly succulent stomata. There is almost always a discrete tran - stems, numerous highly lignified leaves aka sition from photosynthetic vegetative tissues to a spines, lack of functional photosynthetic leaves, non-photosynthetic flower-bearing cephalium, CAM photosynthesis, huge sunken shoot apical both of which arise from the same shoot apical meristems, and fantastic stem architectures meristem. -
OF PLANTS and TREES Updated to Include Fall 2020
Lotusland Newsletter for Memb INDEX OF PLANTS and TREES Updated to include Fall 2020 Abies, firs, Vol 3 No 3, Autumn 1994, p 1 Acacia baileyana, Vol 15 No 1, Winter 2006, p 6 Achillea millefolium, Yarrow, in Plants in the Insectary, Winter 2018 p 7 Adansonia, baobab, Vol 19 No 4, Fall 2010, p 5 Aechmea, Vol 4 No 2, Summer 1995, p 2; Vol 15 No 1, Winter 2006, p 3; A. blanchetiana ‘Wally Berg,’ Vol 24 No 3, Summer 2015, p 4; Vol 25 No 4, Fall 2016, p 6; Madame Ganna Walska, Spring 2018, p 7 Aeonium species (in horticultural clock) Vol 7 No 3, Fall 1998, p 11 A. sedifolium, New to the Collections, Vol 11 No 4, Winter 2002, p 6 Afrocarpus gracilior,(fern pine) Vol 15 No 2, Spring 2006, p 2 Agathis robusta, Vol 5 No 1, Spring 1996, p 2; Vol 15 No 4, Fall 200, p3 Agave americana, A. attenuata, A. vilmoriniana, Vol 5 No 4, Winter 1996, p 7; Vol 15 No 3, Summer 2006, p 3; ; on main drive, Vol 22 No 1, Winter 2013, p 7 A. attenuata ‘Boutin Blue’ (blue fox tail agave) Vol 19 No 3, Summer 2010, p 7 A. augustifolia, A.fourcroydes, A.franzosinii, A. palmeri A. sisalana, A. tequilana Vol 15 No 3, Summer 2006, pp 1-3 A. celsii, possible parent of Mangave, Vol 16 No 1, Winter 2007, p 5 A. franzosinii, silver agaves, Vol 4 No 3, Autumn 1995, p 1 Renovation, main drive, Vol 22 No 1, Winter 2013, p 7 Aglaonaria robertsii ‘Santa Rosa’ fern,Vol 18 No 3, Summer 2009, p 2 Alluaudia procera, Madagascar ocotillo, Vol 17 No 1, Winter 2008, p 12 Aloe barbarae, Vol 21 No 4, Fall 2012, p 3 A. -
Cactus Seed Germination: a Review
Journal of Arid Environments (2000) 44: 85±104 Article No. jare.1999.0582 Available online at http://www.idealibrary.com on Cactus seed germination: a review Mariana Rojas-AreH chiga* & Carlos VaH zquez-Yanes Instituto de Ecologn&a, UNAM, Apartado Postal 70-275, 04510 Me&xico, D.F., Me&xico ( Received 8 June 1998, accepted 10 August 1999) The present review tries to give a general overview of the available information on cactus seed germination. First, information about the family Cactaceae is discussed, concerning aspects such as distribution and general characteristics. Seed distinctive features are mentioned, such as colour, form, and size. Aspects of seed physiology, such as germination and dormancy, as well as seed dynam- ics including dispersal, predation, and soil seed bank formation, are included in the discussion. Techniques of propagation and some aspects of longevity and conservation are mentioned. The areas where there is scarce information available are highlighted, and, therefore, are important areas in which to continue research in order to generate data for immediate and future conserva- tion efforts. ( 2000 Academic Press Keywords: cactus seed; dormancy; germination; propagation; longevity; dissemination; conservation Introduction Arid and semi-arid regions cover about 30% of the world's continental surface (Meigs, 1953 in Kigel, 1995). The best-represented plant families in these regions are Asclepiadaceae, Aloaceae, Apiaceae, Asteraceae, Cactaceae, Chenopodiaceae, Euphor- biaceae, Fabaceae, Malvaceae, Poaceae and Zygophyllaceae (Kigel, 1995). Of these families, the Cactaceae are one of the most interesting due to their extensive set of peculiar adaptations to water scarcity, which allow them to be perennial and evergreen despite the sometimes extreme dry conditions of their environment.