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Chemical Element Concentrations of Cycad Leaves: Do We Know Enough?
horticulturae Review Chemical Element Concentrations of Cycad Leaves: Do We Know Enough? Benjamin E. Deloso 1 , Murukesan V. Krishnapillai 2 , Ulysses F. Ferreras 3, Anders J. Lindström 4, Michael Calonje 5 and Thomas E. Marler 6,* 1 College of Natural and Applied Sciences, University of Guam, Mangilao, GU 96923, USA; [email protected] 2 Cooperative Research and Extension, Yap Campus, College of Micronesia-FSM, Colonia, Yap 96943, Micronesia; [email protected] 3 Philippine Native Plants Conservation Society Inc., Ninoy Aquino Parks and Wildlife Center, Quezon City 1101, Philippines; [email protected] 4 Plant Collections Department, Nong Nooch Tropical Botanical Garden, 34/1 Sukhumvit Highway, Najomtien, Sattahip, Chonburi 20250, Thailand; [email protected] 5 Montgomery Botanical Center, 11901 Old Cutler Road, Coral Gables, FL 33156, USA; [email protected] 6 Western Pacific Tropical Research Center, University of Guam, Mangilao, GU 96923, USA * Correspondence: [email protected] Received: 13 October 2020; Accepted: 16 November 2020; Published: 19 November 2020 Abstract: The literature containing which chemical elements are found in cycad leaves was reviewed to determine the range in values of concentrations reported for essential and beneficial elements. We found 46 of the 358 described cycad species had at least one element reported to date. The only genus that was missing from the data was Microcycas. Many of the species reports contained concentrations of one to several macronutrients and no other elements. The cycad leaves contained greater nitrogen and phosphorus concentrations than the reported means for plants throughout the world. Magnesium was identified as the macronutrient that has been least studied. -
Waterloo Urban and Industrial Expansion Flora and Fauna Survey
Shire of Dardanup Waterloo Urban and Industrial Expansion Flora and Fauna Survey March 2015 Executive summary This report is subject to, and must be read in conjunction with, the limitations set out in Section 1.4 and the assumptions and qualifications contained throughout the Report. The Greater Bunbury Strategy and Structure Plan identified a potential significant urban expansion area located to the east of the Eaton locality and an industrial expansion area in Waterloo, in the Shire of Dardanup. The Shire of Dardanup (the Shire) and the Department of Planning have commenced preparation of District Structure Plans (DSP) for the urban expansion area and the industrial expansion area. The DSP will be informed by several technical studies including flora and fauna surveys. The Shire has commissioned GHD Pty Ltd (GHD) to undertake a flora and fauna survey and reporting for the Project. The Project Area is situated in the locality of Waterloo in the Shire of Dardanup. The Project Area includes the urban development area to the north of the South- west Highway (SWH) and the industrial development area to the south of the SWH. GHD undertook a desktop assessment of the Project Area and a flora and fauna field assessment with the first phase conducted from 13 to 14 August, 2014 and the second phase conducted from 29 to 31 October 2014. The purpose of this assessment was to identify the parts of the Project Area that have high, moderate and low ecological values so that the Shire can develop the DSP in consideration of these ecological values. This assessment identified the biological features of the Project Area and the key results are as follows. -
Revisión Taxonómica Y Morfológica Y Distribución Geográfica De Zamia
1 ARTÍCULO 1: Revisión taxonómica y morfológica y distribución geográfica de Zamia (Zamiaceae) en Costa Rica 2 Revisión taxonómica y morfológica y distribución geográfica de Zamia (Zamiaceae) en Costa Rica Rafael Acuña Castillo Escuela de Biología, Universidad de Costa Rica. [email protected] Abstract: Zamia is the third largest genus of Cycadales and the only one with native representatives in Costa Rica. All Costa Rican species inhabit rainforest undergrowth in low and mid elevation forests (up to 1100 m on the Caribbean slope and to 1600 m on the Pacific slope). Even though there have been recent revisions of the genus in other Neotropical countries, an appropriate taxonomic treatment for Costa Rican species was lacking, until Merello (2004) wrote one for the Manual de Plantas de Costa Rica. However the reality in the field and the herbaria is more complex than the one depicted by her. The main goal of this revision is to correct and update the information regarding the taxonomy of Zamia in Costa Rica. Living plants were observed in their natural habitats at 12 locations in Costa Rica. In addition, all preserved specimens from the three main herbaria of Costa Rica were examined. Vegetative characteristics such as stem color and size, leaf length, rachis length, petiole length, leaflet width and length, leaflet insertion angle, number of sporophyll rows per cone, color, length and width of the mature cone and peduncle were registered and measured. From these qualitative and quantitative data the author recognizes five species of Zamia previously recorded from Costa Rica as well as a species that is still undescribed. -
View Or Download Issue
ISSN 2473-442X CONTENTS Message from Dr. Patrick Griffith, Co-chair, IUCN/SSC CSG 3 Official newsletter of IUCN/SSC Cycad Specialist Group Feature Articles Vol. IV I Issue 1 I October 2019 New report of Eumaeus (Lepidoptera: Lycaenidae) associated with Zamia boliviana, a cycad from Brazil and Bolivia 5 Rosane Segalla & Patrícia Morellato The Mexican National Cycad Collection 45 years on 7 Andrew P. Vovides, Carlos Iglesias & Miguel A. Pérez-Farrera Research and Conservation News Speciation processes in Mexican cycads: our research progress on the genus Dioon 10 José Said Gutiérrez-Ortega, María Magdalena Salinas-Rodrígue, Miguel Angel Pérez-Farrera & Andrew P. Vovides Cycad’s pollen germination and conservation in Thailand 12 Anders Lindstrom Ancestral characteristics in modern cycads 13 The Cycad Specialist Group (CSG) is a M. Ydelia Sánchez-Tinoco, Andrew P. Vovides & H. Araceli Zavaleta-Mancera component of the IUCN Species Payments for ecosystem services (PES). A new alternative for conservation of mexican Survival Commission (IUCN/SSC). It cycads. Ceratozamia norstogii a case study 16 consists of a group of volunteer experts addressing conservation Miguel A. Pérez-Farrera, Héctor Gómez-Dominguez, Ana V. Mandri-Rohen & issues related to cycads, a highly Andrómeda Rivera-Castañeda threatened group of land plants. The CSG exists to bring together the CSG Members 21 world’s cycad conservation expertise, and to disseminate this expertise to organizations and agencies which can use this guidance to advance cycad conservation. Official website of CSG: http://www.cycadgroup.org/ Co-Chairs John Donaldson Patrick Griffith Vice Chairs Michael Calonje All contributions published in Cycads are reviewed and edited by IUCN/SSC CSG Newsletter Committee and Cristina Lopez-Gallego members. -
CYCAD 2005) 8-15 January 2005 – Xalapa, Oaxaca, Mexico
Summary of MBC’s Participation in the 7th International Conference on Cycad Biology (CYCAD 2005) 8-15 January 2005 – Xalapa, Oaxaca, Mexico Jody Haynes (MBC Cycad Biologist) • Co-author and presenter of paper presentation entitled “Redescription of Dioon mejiae: Toward a Taxonomic Description Standard” (Mark Bonta additional author) • Co-author of paper presentation entitled “Variability and Structure of Natural Populations and Implications for Zamia (Zamiaceae) Species in Western Panama” (Alberto Taylor presented; Greg Holzman and Jorge Mendieta additional authors) • Co-organizer and co-moderator of 4-hour Workshop on Honduran Cycads (with Mark Bonta) o Presenter of presentation entitled “Cycad Flora of Honduras: Species, Taxonomy, Population Structure & Conservation Status” • Co-organizer of special focus meeting of Cycad Database Working Group (with MBC Member Tim Gregory) • Co-author of poster entitled “Key to the Species of Dioon” (Tim Gregory lead author; Jeff Chemnick additional author) • Author of poster entitled “The Tree Dioons” • Participant and secretary of IUCN/Species Survival Commission Cycad Specialist Group meeting (led by John Donaldson, CSG Chair) • Participant of 12-day post-conference tour of cycad populations in Mexico (led by Jeff Chemnick and Tim Gregory; 15-26 January 2005) Christine Wiese (MBC Cycad Horticulturist) • Author and presenter of paper presentation entitled “Managing Cycad Aulacaspis Scale (Aulacaspis yasumatusi Takagi) at Montgomery Botanical Center, USA” Terrence Walters (MBC Executive Director) -
Holzman, G. & J. Haynes. 2004. Cycads of the Sand: the Beach
Cycads of the Sand: The Beach-dwelling Zamias of Bocas del Toro, Panama Article and Photos by Greg Holzman1 & Jody Haynes2 Our primary goal was to assess the discovered and named more than 150 habitat, morphology, ecology, phenolo- years ago, it is remarkable that it is still gy, and conservation status of as many island populations as possible. Soil sam- ples were to be taken and cones col- lected. What we discovered at one locality were perfect white sand beach- es with literally tens of thousands of Zamia “trees” growing on them—in areas where waves are known to roll right through the populations three or Fig. 1. Map of Bocas del Toro showing the major islands and place names on the main- four times a year and where winds blow land (after Fig. 1a of Anderson & Handley, 20-30 knots onshore, sending salt spray 2002; used with permission). up the hills behind the beaches. Some- times dreams do come true…and in this Cycad expeditions tend to take on a case, success was in every step we left life of their own once the players com- on those beaches! mit to the objective. This year the ob- This is the story of the cycads of jective was to assess populations of the the sand… Zamia skinneri/Z. neurophyllidia com- plex of western Panama. Misunderstood Overview of the and mysterious, these plants are among “Groove-leaved” Zamias the most beautiful and wondrous of all Central American cycads. The genus Zamia currently contains Jody Haynes, Gregg Hamann, and seven named species with veins that are Greg Holzman were to meet up with Dr. -
What Are Cycads?
COJ Technical & Scientific Research CRIMSON PUBLISHERS C Wings to the Research Mini Review What are Cycads? Andrew P Vovides* Instituto de Ecología, Mexico *Corresponding author: Andrew P Vovides, Instituto de Ecología, Mexico Submission: January 26, 2019; Published: February 5, 2019 Mini Review Looking at cycads from a distance the un-experienced would Cycads are amongst the most ancient group of living seed be excused for calling them palms, since these plants bear long plants known and have a fossil history that dates to more than 200 feather-like leaves crowning the apex of a relatively short thick million years [1]. They were at their height during the times of the stem or trunk. The trunks may be solitary or branched depending dinosaurs, forming part of the world vegetation during the Mesozoic on age and species. Infact it would be more correct to say that palms are cycad-like since the cycad families are of far greater age than the era (160million years ago). They superficially resemble palms or but cones. They are gymnosperms that include conifers, and cycads even ferns though totally unrelated since they do not bear flowers occur in separate sexes there being female and male plants. Cycads palms that are classified as flowering plants. When you have a closer the conifers; the seed-bearing cone bears naked seeds, hence the had a much wider distribution during the historic past with fossils look at cycad cones you will find a certain resemblance to those of term gymnosperm in that the seed lacks the ovary wall that forms found in Alaska, Russia, Britain and the USA. -
Can a BG Cycad Collection Capture the Genetic Diversity in a Wild
Can a Botanic Garden Cycad Collection Capture the Genetic Diversity in a Wild Population? Author(s): M. Patrick Griffith, Michael Calonje, Alan W. Meerow, Freddy Tut, Andrea T. Kramer, Abby Hird, Tracy M. Magellan, Chad E. Husby Source: International Journal of Plant Sciences, Vol. 176, No. 1 (January 2015), pp. 1-10 Published by: The University of Chicago Press Stable URL: http://www.jstor.org/stable/10.1086/678466 . Accessed: 02/02/2015 12:37 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. The University of Chicago Press is collaborating with JSTOR to digitize, preserve and extend access to International Journal of Plant Sciences. http://www.jstor.org This content downloaded from 205.243.145.122 on Mon, 2 Feb 2015 12:37:25 PM All use subject to JSTOR Terms and Conditions Int. J. Plant Sci. 176(1):1–10. 2015. q 2014 by The University of Chicago. All rights reserved. 1058-5893/2015/17601-0001$15.00 DOI: 10.1086/678466 CAN A BOTANIC GARDEN CYCAD COLLECTION CAPTURE THE GENETIC DIVERSITY IN A WILD POPULATION? M. Patrick Griffith,1,* Michael Calonje,*,† Alan W. Meerow,‡ Freddy Tut,§ Andrea T. -
A New Species of Zamia (Zamiaceae) from Costa Rica
BRENESIA 73-74: 29-33, 2010 A new species of Zamia (Zamiaceae) from Costa Rica Rafael H. Acuña C. School of Biology, University of Costa Rica, P.O. Box 11501-2060 San José, Costa Rica. Email: [email protected] (Received: September 1, 2010) ABSTRACT. Zamia gomeziana sp. nov. is described from material collected from Fila de Matama, in Limón Province, Costa Rica. It is distinguished from Zamia fairchildiana L.D. Gómez by its straighter leaflets with longer tips, longer megastrobilus peduncle and thicker megastrobilus with a shorter sterile apex. A discussion about the possible relationships of this new taxon with other existing Zamia species is briefly outlined. Most aspects of the biology of this species are unknown. RESUMEN. Zamia gomeziana sp. nov. se describe a partir de material recolectado en la fila de Matama, en la provincia de Limón, Costa Rica. Se distingue de Zamia fairchildiana L.D. Gómez por sus foliolos más rectos y con ápices más largos, así como por los pedúnculos de los megaestróbilos más largos y megaestróbilos más gruesos con el ápice estéril más corto. Se discuten brevemente las relaciones de este taxon con otras especies de Zamia. La mayor parte de los aspectos de la biología de esta especie se desconocen. KEY WORDS. Zamia, new species, Costa Rica, Fila de Matama, Limón Province Zamia L. is the second most speciose genus in the related Z. fairchildiana L.D. Gómez and Z. Cycadales Pers. ex Bercht. & J. Presl, 69 species pseudomonticola L.D. Gómez. The latter differences, have been recognized as valid by the world’s coupled with the geographic isolation of this leading cycadologists in the latest edition of specimen justify the description of a new taxon. -
ZAMIAS of COSTA RICA by Michael Calonje Osta Rica Is a Relatively Small Leaflet Zamia Are Poorly Understood
INVESTIGATING THE PLEATED-LEAFLET ZAMIAS OF COSTA RICA by Michael Calonje osta Rica is a relatively small leaflet Zamia are poorly understood. The opportunity to help clarify these relation- Cand narrow country. The ships presented itself in January 2006, when I returned to Costa Rica on a two-week, distance between the Atlantic and Pacific MBC-sponsored expedition to take a closer look at the pleated-leaflet Zamia of Costa oceans is 115 km at the narrowest point. Rica’s Atlantic slope. Accompanied by my brother, Christopher, and biologist Claudia One can travel from coast to coast in less Gutierrez, we collected data, photo- than seven hours. Despite Costa Rica’s graphs, living material, and herbarium small size, it is remarkably diverse. It is specimens from widely scattered popu- split longitudinally by a central moun- lations of pleated-leaflet Zamia along tain range that reaches a height of 3,820 Costa Rica’s Atlantic slope. On this trip meters in Cerro Chirripó. This rugged we also took detailed measurements of mountain range has varied topography vegetative and reproductive structures conducive to high species diversity. It of 25 plants within each pleated-leaflet also creates a formidable barrier affect- Zamia population to contribute to the ing how species migrate and evolve. As dataset of similar measurements taken a result, there is considerable difference by Dr. Alberto Taylor, cycad researcher in the species composition of the Pacific at the University of Panama, and former and Atlantic slopes of Costa Rica. Those Montgomery Botanical Center biologist, differences are also notable in Costa Rica’s Jody Haynes. -
Jurassic Garden—A&A Cycads Alphabetical (& Clickable) Species
Jurassic Garden—A&A Cycads Alphabetical (& Clickable) Species List Page 1 of 7 Here is a complete list of our currently available species. Please click on any species name below to get more information on that plant from our website! Aeonium Species Aeonium 'Zwartkop,' aka Aeonium 'Schwarzkopf' Aeonium Sunburst Plants Aeonium canariense Plants Agathis robusta Agave Species Agave macroacantha Agave tequilana (Tequila Sunrise Agave) Agave victoriae-reginae Aloe Species Aloe africana Plants Aloe alooides Plants Aloe arborescens Plants Aloe bainesii Plants | Aloe barberae Plants Aloe cameronii Plants Aloe chabaudii Plants -- Blue/Silver/Green Color Aloe chabaudii Plants – Pink/Red/Purple Color Aloe cryptopoda Plants Aloe decurva Plants Aloe dichotoma Plants Aloe excelsa "Matsimbo" Plants Aloe ferox Plants Aloe ferox Plants--White Flower Form Aloe pillansii Plants Aloe plicatilis Plants Aloe pluridens Plants Aloe x principis Plants Aloe ferox x Aloe arborescens Aloe speciosa Plants Aloe striatula Plants Aloe swynnertonii Plants Beaucarnea guatemalensis Plants Boophone Plants Boophone disticha Plants Boophone haemanthoides Plants Ceratozamia Plants Ceratozamia hildae Jurassic Garden--A&A Cycads 11225 Canoga Avenue, (North of 118 Freeway), Chatsworth, CA 91311 818-655-0230Fax: [email protected]://www.cycads.com Jurassic Garden—A&A Cycads Alphabetical (& Clickable) Species List Page 2 of 7 Ceratozamia kuesteriana Ceratozamia latifolia Ceratozamia mexicana Ceratozamia miqueliana Ceratozamia robusta Ceratozamia zaragozae Certatozamia norstogii Crassula Plants Crassula falcata (Crassula perfoliata var. falcata) Crassula “Baby Necklace” (Crassula perforata x Crassula rupestris var marnieriana) Cycas Plants Cycas angulata Cycas balansae Cycas beddomei Cycas bifida Cycas bougainvilleana Cycas cairnsiana Cycas circinalis Cycas clivicola Cycas couttsiana Cycas currannii Cycas debaoensis Cycas diannanensis Cycas dolichophylla Cycas elephantipes Cycas guizhouensis Cycas hainanensis Cycas litoralis Cycas macrocarpa Cycas media Cycas micholitzii (C. -
Life History, Population Dynamics and Conservation Status of Oldenburgia Grandis (Asteraceae), an Endemic of the Eastern Cape of South Africa
The conservation, ecology, and distribution of the Critically Endangered Encephalartos latifrons Lehm. A thesis submitted in fulfilment of the requirements for the degree of DOCTOR OF PHILOSOPHY (SCIENCE) of RHODES UNIVERSITY by CARIN SWART Department of Botany March 2019 ABSTRACT Cycads have attracted global attention both as horticulturally interesting and often valuable plants; but also as some of the most threatened organisms on the planet. In this thesis I investigate the conservation management, biology, reproductive ecology and distribution of Encephalartos latifrons populations in the wild and draw out conclusions on how best to conserve global cycad biodiversity. I also employ computer- modelling techniques in some of the chapters of this thesis to demonstrate how to improve conservation outcomes for E. latifrons and endangered species in general, where information on the distribution, biology and habitat requirements of such species are inherently limited, often precluding robust conservation decision-making. In Chapter 1 of this thesis I introduce the concept of extinction debt and elucidate the importance of in situ cycad conservation. I explain how the concept of extinction debt relates to single species, as well as give details on the mechanisms causing extinction debt in cycad populations. I introduce the six extinction trajectory threshold model and how this relates to extinction debt in cycads. I discuss the vulnerability of cycads to extinction and give an overview of biodiversity policy in South Africa. I expand on how national and global policies contribute to cycad conservation and present various global initiatives that support threatened species conservation. I conclude Chapter 1 by explaining how computer-based models can assist conservation decision-making for rare, threatened, and endangered species in the face of uncertainty.