DOCSLIB.ORG

Bulletin Spring 2003 Volume 49 Number 1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Bulletin Spring 2003 Volume 49 Number 1 BULLETIN SPRING 2003 VOLUME 49 NUMBER 1 Metasequoia Musings..............................................................................................................2 “Basic Botany” in U.S. Colleges and Universities, 2002-3...............................................3 News from the Society BOTANY 2003............................................................................................................4 Call for Nominations................................................................................................5 Increasing Diversity at the Annual Botanical Society of America Meeting......6 Southeastern Section..............................................................................................6 Northeast Section.....................................................................................................6 Announcements In Memoriam: Dorothy Essman, 1932-2002.................................................................6 Maynard Fowle Moseley, 1918-2003....................................................7 James C. Parks, 1942-2002..................................................................8 Personalia David L. Lentz............................................................................................8 Planr Biologist receives First Scientific American Award.................9 Symposia, Conferences, Meetings Society of Wetland Scientists.................................................................9 Monocots III..............................................................................................10 Spring Wildflower Symposium.............................................................10 Award Opportunities Graduate Opportunities at Florida International Univ.......................10 Rea Postdoctoral Fellowship................................................................10 The Buker Travel Award.........................................................................10 Position Available Herbarium Collections Technician......................................................11 Other News Wayne E. Manning Herbarium..............................................................11 The Botanical Society of America: for ALL Plant Biologists Book Reviews..........................................................................................................................12 Books Received......................................................................................................................38 PLANT SCIENCE Millennial Concepts................................................................................................................39 Don Les’ Guide to Botanical Nomenclature......................................................................39 Botanical Society of America Logo Items...........................................................................40 Editor: Marshall D. Sundberg Department of Biological Sciences Emporia State University 1200 Commercial Street, Emporia, KS 66801-5707 Telephone: 620-341-5605 Fax: 620-341-5607 Email: [email protected] ISSN 0032-0919 Plant Science Bulletin 49(1) 2003 Some responses to queries in the last issue - we’ll academic chacanery perpetrated by Ralph Chaney, continue accepting contributions! - editor the celebrated paleobotanist at UC Berkeley. Although the trees were, indeed, discovered in Metasequoia Musings 1941 as mentioned in our note, the first seeds were We received two responses to our request for not sent to this country until 1947. These were additional information concerning the original gathered on an autumn expedition funded by Merrill plantings of Metasequoia in this country (in addition of the Arnold Arboretum. They are the source of all to the specimens at Duke University and the College the “original” trees outside of China. Merrill sent a of William and Mary mentioned in the last issue of big batch of seeds to Chaney in the winter of 1947. PSB.) Chaney, however, sat on these seeds until after he himself went to China in the spring of 1948. Chaney “ Another one of the original Metasequoia plantings then distributed seeds and, a year or two later, can be found on the campus of Columbia University. seedlings to institutions all over the country. Chaney It is on a lawn to the west of Low Library. There used did not ever mention the source of seeds and quite to be two, but now only one remains. It is sad to say deviously (deliberately) allowed people to think he that this specimen has far outlived the Botany had gathered them during the course of his 1948 department there. Having attended both Columbia spring trip. Merrill was disgusted but, like a and Duke, I am familiar with both.” gentleman, never said anything publicly before he died. Chaney finally mentioned the source in a Cheers, technical publication but the public has mostly Owen M. Schwartz never heard of it and consider Chaney and Berkeley Head, Biological Imaging Facility as the cource of the “original” seeds and seedlings. NIAID, NIH Bldg 4, Room 424 MSC 0485 The whole story is wonderfully documented in: Bethesda, MD 20892 Fulling, Edmund H. 1976. Metasequoia - - Fossil and Living - - The Botanical Review 42(3): 215-315. “I noted you interest in the dawn redwood in the I got interested because some of Fulling’s story recent issue of PSB. I don’t have a current list of came from the archives at the University of Oregon, “Whereabouts of other ‘original’trees” but have a on whose campus are trees obtained from Chaney nice reference on the biggest trees after 20 years of as well as from Merrill, indirectly through a friend of cultivation: his who lived in Eugene. The gree from which I got the viable seeds grew outside the herbarium on the Hebb, R. 1968. Metasequoia after Twenty Years in UO campus. The herbarium is no longer there - - Cultivation. Arnoldia 28(10&11): 113-122. it was closed and the speciments moved to Oregon State University Herbarium in 1993 - - but the tree is I had a nice exchange with Bob Hebb afteroffering still there, producing seeds. Every fall. All seeds viable seeds from the tree on the University of gone by spring.” Oregon campus, one of the first to produce viable seeds outside of China. It’s possible that the Arnold David H. Wagner Arboretum has kept up with the trees around the Univ of Oregon Herbarium Director, 1976-1993 world. Northwest Botanical Institute P.O. Box 30064 The really interesting story, to me, is the one of Eugene, OR 97403-1064 PLANT SCIENCE BULLETIN ISSN 0032-0919 Published quarterly by Botanical Society of America, Inc., 1735 Neil Ave., Columbus, OH 43210 The yearly subscription rate of $15 is included in the membership dues of the Botanical Society of America, Inc. Periodical postage paid at Columbus, OH and additional mailing office. POSTMASTER: Send address changes to: Address Editorial Matters (only) to: Botanical Society of America Marsh Sundberg, Editor Business Office Dept. Biol. Sci., Emporia State Univ. P.O. Box 299 1200 Commercial St. St. Louis, MO 63166-0299 Emporia, KS 66801-5057 email: [email protected] Phone 620-341-5605 email: [email protected] 2 Plant Science Bulletin 49(1) 2003 “Basic Botany” in U.S. Colleges and Universities, 2002-3 Annual student enrollment in botany courses, as reported by faculty responding to the request for information in the last issue. If you would like to include data from your institution in a more complete compilation, please send it to the editor at your earliest convenience. Bot Ana Morph Tax Flora Tree/Shru Aquat Syst Econ Phys Paleo Ecol Phy Myc Research Miami Univ (OH) 420 5 51 28 120 10 450 21 120+* Mich St Univ 293 5 28 14 40 8 14 32 Ohio Univ 45 4(alt) 6 15 18 22 10 2 100+*13(alt) 11 U. Rhode Isl. 220 45 35 23 21 31 14 36 U. Vermont X X X X X Comprehensive Adams St (CO) X(alt) X(alt) X(alt) X(alt) Cal St-San Bern 24 24 24 E. Kentucky 200 15 15 15 E. Michigan 16 5(alt) 16 10(alt)5(alt) 3(alt) 5(alt) 5(alt) Emporia St (KS) 70 4(alt) 10 10(su) 10 12(alt)3(alt) 3(alt) Humboldt St**(CA) 12 12 100 24 24 24 24 48* Millersville (PA) 160 22 24 18 N. Colo. 18(alt) 20 24 27 20(alt) N. Iowa 33 15 23 25 33 U.W.LaCrosse 130 5 15 12 18 24 27 Liberal Arts Cedarville (OH) 35 3(alt) 7(alt) 3(alt) Pacific (CA) 10 Warren Wilson C.(NC) 17 17 17 Washington C.(MD) 11 3 * sum of multiple courses **based on # labs, estimated enrollment 12/lab X = course offered but no enrollments available (alt) = alternate year course Bot, Intro level Botany; Anat, Plant Anatomy; Morph, Plant Morphology (incl. “Survey”); Tax, Taxonomy; Tree/Shru, Trees and Shrubs; Aquat, Aquatic Botany (incl. Marine Botany); Syst, Systematic Botany; Econ, Economic Botany; Phys, Plant Physiology; Paleo, Paleobotany; Ecol, Plant Ecology; Phy, Phycology; Myc, Mycology (incl. Plant Pathology) PLANT SCIENCE BULLETIN Editorial Committee for Volume 49 Norman C. Ellstrand (2003) James E. Mickle (2004) Andrew W. Douglas (2005) Department of Botany and Department of Botany Department of Biology Plant Science North Carolina State University University of Mississippi University of California Raleigh, NC 27695-7612 University, MS 38677 Riverside CA 92521-0124 [email protected] [email protected] [email protected] Douglas W. Darnowski (2006) Andrea D. Wolfe (2007) Department of Biology Department of EEOB Washington College 1735 Neil Ave., OSU Chestertown, MD 21620 Columbus, OH 43210-1293 [email protected] [email protected] 3 Plant Science Bulletin 49(1) 2003 News from the Society Conference Overview as in science outreach initiatives. The FORUM will begin on Friday evening
Load more

Recommended publications
  • Cinara Cupressivora W Atson & Voegtlin, 1999 Other Scientific Names: Order and Family: Hemiptera: Aphididae Common Names: Giant Cypress Aphid; Cypress Aphid
    O R E ST E ST PE C IE S R O FIL E F P S P November 2007 Cinara cupressivora W atson & Voegtlin, 1999 Other scientific names: Order and Family: Hemiptera: Aphididae Common names: giant cypress aphid; cypress aphid Cinara cupressivora is a significant pest of Cupressaceae species and has caused serious damage to naturally regenerating and planted forests in Africa, Europe, Latin America and the Caribbean and the Near East. It is believed to have originated on Cupressus sempervirens from eastern Greece to just south of the Caspian Sea (Watson et al., 1999). This pest has been recognized as a separate species for only a short time (Watson et al., 1999) and much of the information on its biology and ecology has been reported under the name Cinara cupressi. Cypress aphids (Photos: Bugwood.org – W .M . Ciesla, Forest Health M anagement International (left, centre); J.D. W ard, USDA Forest Service (right)) DISTRIBUTION Native: eastern Greece to just south of the Caspian Sea Introduced: Africa: Burundi (1988), Democratic Republic of Congo, Ethiopia (2004), Kenya (1990), Malawi (1986), Mauritius (1999), Morocco, Rwanda (1989), South Africa (1993), Uganda (1989), United Republic of Tanzania (1988), Zambia (1985), Zimbabwe (1989) Europe: France, Italy, Spain, United Kingdom Latin America and Caribbean: Chile (2003), Colombia Near East: Jordan, Syria, Turkey, Yemen IDENTIFICATION Giant conifer aphid adults are typically 2-5 mm in length, dark brown in colour with long legs (Ciesla, 2003a). Their bodies are sometimes covered with a powdery wax. They typically occur in colonies of 20-80 adults and nymphs on the branches of host trees (Ciesla, 1991).
    [Show full text]
  • Clonal Propagation of Flacourtia Indica for Ensuring Quality Planting Materials and Sustainable Supply of Edible Fruits
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Hasanuddin University Graduate School: Open Journal Systems International Journal of Agriculture System (IJAS) Clonal Propagation of Flacourtia indica for Ensuring Quality Planting Materials and Sustainable Supply of Edible Fruits Md. Alamgir Kabir (Corresponding author) Department of Agroforestry, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh Tel.: +88 04427-56014/468 Fax: +88-0027-56009 E-mail: [email protected] Md. Hasan Mehedi Khan Department of Agroforestry, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh Tel.: +88 04427-56014/296 Fax: +88-0027-56009 E-mail: [email protected] Md. Masudur Rahman Department of Agroforestry, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh Tel.: +88 04427-56014/296 Fax: +88-0027-56009 E-mail: [email protected] A.T.M. Rabiul Alam Department of Agroforestry, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh Tel.: +88 04427-56014/296 Fax: +88-0027-56009 E-mail: [email protected] S.M. Hemayet Jahan Department of Entomology, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh Tel.: +88 04427-56014/413 Fax: +88-0027-56009 E-mail: [email protected] A.K.M. Mostafa Zaman Department of Geo-information Science and Earth Observation Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh Tel.: +88 04427-56014/240 Fax: +88-0027-56009 E-mail:
    [Show full text]
  • Contributions to the Life-History of Tetraclinis Articu- Lata, Masters, with Some Notes on the Phylogeny of the Cupressoideae and Callitroideae
    Contributions to the Life-history of Tetraclinis articu- lata, Masters, with some Notes on the Phylogeny of the Cupressoideae and Callitroideae. BY W. T. SAXTON, M.A., F.L.S., Professor of Botany at the Ahmedabad Institute of Science, India. With Plates XLIV-XLVI and nine Figures in the Text. INTRODUCTION. HE Gum Sandarach tree of Morocco and Algeria has been well known T to botanists from very early times. Some account of it is given by Hooker and Ball (20), who speak of the beauty and durability of the wood, and state that they consider the tree to be probably correctly identified with the Bvlov of the Odyssey (v. 60),1 and with the Ovlov and Ovia of Theo- phrastus (' Hist. PI.' v. 3, 7)/ as well as, undoubtedly, with the Citrus wood of the Romans. The largest trees met with by them, growing in an un- cultivated state, were about 30 feet high. The resin, known as sandarach, is stated to be collected by the Moors and exported to Europe, where it is used as a varnish. They quote Shaw (49 a and b) as having described and figured the tree under the name of Thuja articulata, in his ' Travels in Barbary'; this statement, however, is not accurate. In both editions of the work cited the plant is figured and described as ' Cupressus fructu quadri- valvi, foliis Equiseti instar articulatis '. Some interesting particulars of the use of the timber are given by Hansen (19), who also implies that the embryo has from three to six cotyledons. Both Hooker and Ball, and Hansen, followed by almost all others who have studied the plant, speak of it as Callitris qtiadrivalvis.
    [Show full text]
  • Genetic Structure of Tetraclinis Articulata, an Endangered Conifer of the Western Mediterranean Basin
    Silva Fennica vol. 47 no. 5 article id 1073 Category: research article SILVA FENNICA www.silvafennica.fi ISSN-L 0037-5330 | ISSN 2242-4075 (Online) The Finnish Society of Forest Science The Finnish Forest Research Institute Pedro Sánchez-Gómez1, Juan F. Jiménez1, Juan B. Vera1, Francisco J. Sánchez-Saorín2, Juan F. Martínez2 and Joseph Buhagiar3 Genetic structure of Tetraclinis articulata, an endangered conifer of the western Mediterranean basin Sánchez-Gómez P., Jiménez J. F., Vera J. B., Sánchez-Saorín F. J., Martínez J. F., Buhagiar J. (2013). Genetic structure of Tetraclinis articulata, an endangered conifer of the western Mediter- ranean basin. Silva Fennica vol. 45 no. 5 article id 1073. 14 p. Highlights • The employment of ISSR molecular markers has shown moderate genetic diversity and high genetic differentiation in Tetraclinis articulata. • Genetic structure of populations seems to be influenced by the anthropogenic use of this species since historical times, or alternatively, by the complex palaeogeographic history of the Mediterranean basin. • Results could be used to propose management policies for conservation of populations. Abstract Tetraclinis articulata (Vahl) Masters is a tree distributed throughout the western Mediterranean basin. It is included in the IUCN (International Union for Conservation of Nature) red list, and protected by law in several of the countries where it grows. In this study we examined the genetic diversity and genetic structure of 14 populations of T. articulata in its whole geographic range using ISSR (inter simple sequence repeat) markers. T. articulata showed moderate genetic diversity at intrapopulation level and high genetic differentiation. The distribution of genetic diversity among populations did not exhibit a linear pattern related to geographic distances, since all analyses (principal coordinate analysis, Unweighted pair group method with arithmetic mean dendrogram and Bayesian structure analysis) revealed that spanish population grouped with Malta and Tunisia populations.
    [Show full text]
  • Forest Inventory and Analysis National Core Field Guide
    National Core Field Guide, Version 5.1 October, 2011 FOREST INVENTORY AND ANALYSIS NATIONAL CORE FIELD GUIDE VOLUME I: FIELD DATA COLLECTION PROCEDURES FOR PHASE 2 PLOTS Version 5.1 National Core Field Guide, Version 5.1 October, 2011 Changes from the Phase 2 Field Guide version 5.0 to version 5.1 Changes documented in change proposals are indicated in bold type. The corresponding proposal name can be seen using the comments feature in the electronic file. • Section 8. Phase 2 (P2) Vegetation Profile (Core Optional). Corrected several figure numbers and figure references in the text. • 8.2. General definitions. NRCS PLANTS database. Changed text from: “USDA, NRCS. 2000. The PLANTS Database (http://plants.usda.gov, 1 January 2000). National Plant Data Center, Baton Rouge, LA 70874-4490 USA. FIA currently uses a stable codeset downloaded in January of 2000.” To: “USDA, NRCS. 2010. The PLANTS Database (http://plants.usda.gov, 1 January 2010). National Plant Data Center, Baton Rouge, LA 70874-4490 USA. FIA currently uses a stable codeset downloaded in January of 2010”. • 8.6.2. SPECIES CODE. Changed the text in the first paragraph from: “Record a code for each sampled vascular plant species found rooted in or overhanging the sampled condition of the subplot at any height. Species codes must be the standardized codes in the Natural Resource Conservation Service (NRCS) PLANTS database (currently January 2000 version). Identification to species only is expected. However, if subspecies information is known, enter the appropriate NRCS code. For graminoids, genus and unknown codes are acceptable, but do not lump species of the same genera or unknown code.
    [Show full text]
  • E-Cop18-Prop Draft-Widdringtonia
    Original language: English CoP18 Doc. XXX CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA ____________________ Eighteenth meeting of the Conference of the Parties Colombo (Sri Lanka), 23 May – 3 June 2019 CONSIDERATION OF PROPOSALS FOR AMENDMENT OF APPENDICES II1 A. Proposal To list the species Widdringtonia whytei in CITES Appendix II without annotation specifying the types of specimens to be included, in order to include all readily recognizable parts and derivatives in accordance with Resolution Conf. 11.21 (Rev. CoP17). On the basis of available trade data and information it is known that the regulation of trade in the species is absolutely necessary to avoid this critically endangered species, with major replantation efforts underway, becoming eligible for inclusion in Appendix I in the very near future. B. Proponent Malawi C. Supporting Statement 1. Taxonomy 1.1. Class: Pinopsida 1.2. Order: Pinales 1.3. Family: Cupressaceae 1.4. Genus and species: Widdringtonia whytei Rendle 1.5. Scientific synonyms: Widdringtonia nodiflora variety whytei (Rendle) Silba 1.6. Common names: Mulanje cedar, Mulanje cedarwood, Mulanje cypress, Mkunguza 2. Overview Widdringtonia whytei or Mulanje cedar, the national tree of Malawi, is a conifer in the cypress family endemic to the upper altitude reaches of the Mount Mulanje massif (1500-2200 a.s.l.). This highly valued, decay- and termite-resistant species is considered to be “critically endangered” by the International Union for Conservation of Nature (IUCN) Red List of Threatened Species after years of overexploitation from unsustainable and illegal logging combined with human-induced changes to the fire regime, invasive competing tree species, aphid infestation, and low rates of 1 This document has been submitted by Malawi.
    [Show full text]
  • Supporting Information
    Supporting Information Mao et al. 10.1073/pnas.1114319109 SI Text BEAST Analyses. In addition to a BEAST analysis that used uniform Selection of Fossil Taxa and Their Phylogenetic Positions. The in- prior distributions for all calibrations (run 1; 144-taxon dataset, tegration of fossil calibrations is the most critical step in molecular calibrations as in Table S4), we performed eight additional dating (1, 2). We only used the fossil taxa with ovulate cones that analyses to explore factors affecting estimates of divergence could be assigned unambiguously to the extant groups (Table S4). time (Fig. S3). The exact phylogenetic position of fossils used to calibrate the First, to test the effect of calibration point P, which is close to molecular clocks was determined using the total-evidence analy- the root node and is the only functional hard maximum constraint ses (following refs. 3−5). Cordaixylon iowensis was not included in in BEAST runs using uniform priors, we carried out three runs the analyses because its assignment to the crown Acrogymno- with calibrations A through O (Table S4), and calibration P set to spermae already is supported by previous cladistic analyses (also [306.2, 351.7] (run 2), [306.2, 336.5] (run 3), and [306.2, 321.4] using the total-evidence approach) (6). Two data matrices were (run 4). The age estimates obtained in runs 2, 3, and 4 largely compiled. Matrix A comprised Ginkgo biloba, 12 living repre- overlapped with those from run 1 (Fig. S3). Second, we carried out two runs with different subsets of sentatives from each conifer family, and three fossils taxa related fi to Pinaceae and Araucariaceae (16 taxa in total; Fig.
    [Show full text]
  • Plant Conservation Report 2020
    Secretariat of the CBD Technical Series No. 95 Convention on Biological Diversity 4 PLANT CONSERVATION95 REPORT 2020: A review of progress towards the Global Strategy for Plant Conservation 2011-2020 CBD Technical Series No. 95 PLANT CONSERVATION REPORT 2020: A review of progress towards the Global Strategy for Plant Conservation 2011-2020 A contribution to the fifth edition of the Global Biodiversity Outlook (GBO-5). The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the copyright holders concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. This publication may be reproduced for educational or non-profit purposes without special permission, provided acknowledgement of the source is made. The Secretariat of the Convention and Botanic Gardens Conservation International would appreciate receiving a copy of any publications that use this document as a source. Reuse of the figures is subject to permission from the original rights holders. Published by the Secretariat of the Convention on Biological Diversity in collaboration with Botanic Gardens Conservation International. ISBN 9789292257040 (print version); ISBN 9789292257057 (web version) Copyright © 2020, Secretariat of the Convention on Biological Diversity Citation: Sharrock, S. (2020). Plant Conservation Report 2020: A review of progress in implementation of the Global Strategy for Plant Conservation 2011-2020. Secretariat of the Convention on Biological Diversity, Montréal, Canada and Botanic Gardens Conservation International, Richmond, UK. Technical Series No. 95: 68 pages. For further information, contact: Secretariat of the Convention on Biological Diversity World Trade Centre, 413 Rue St.
    [Show full text]
  • 118–121. 2007. 4. FLACOURTIA Commerson Ex L'h閞itier, Stirp. Nov
    Flora of China 13: 118–121. 2007. 4. FLACOURTIA Commerson ex L’Héritier, Stirp. Nov. 3: 59. 1786. 刺篱木属 ci li mu shu Stigmarota Loureiro. Trees or shrubs, dioecious or hermaphroditic, rarely polygamous, usually spiny. Leaves alternate, petiolate; stipules small, early caducous; leaf blade pinnate-veined, sometimes 3–5-veined from base, margin glandular-toothed, rarely entire. Inflorescences axil- lary, or terminal on abbreviated lateral twigs, usually short, lax, racemose, or in form of small paniculate or umbel-like clusters. Flowers hypogynous, unisexual or bisexual, small; pedicels articulate. Sepals 4–7, imbricate, slightly connate at base, green, small. Petals absent. Disk fleshy, entire or comprised of distinct glands. Staminate flowers: stamens many, exserted, filaments free, filiform; anthers ellipsoid, small, versatile, longitudinally dehiscent, connective not projected beyond thecae; disk extrastaminal; abortive ovary much reduced or absent. Pistillate flowers: disk surrounding base of ovary; ovary superior, globose, ovoid, or bottle-shaped, incompletely 2–8-loculed by false septa; placentas 2-ovuled; styles isomerous with placentas, free or united, columnar; stigmas slightly dilated, flattened, reniform, recurved; staminodes usually absent. Fruit a berrylike indehiscent drupe with pyrenes 2 × as many as styles, globose, in dried material characteristically longitudinally angled, squarish or rectangular in longitudinal cross- section, with flattish apex and base, contracted or not at equator, disk persistent at base, style or stigma remnants persistent at apex. Seeds ellipsoid, compressed. Between 15 and 17 species: tropical Africa and Asia; five species (one endemic) in China. In Chinese species: plants usually dioecious; stamens (10–)15–30(–50), number apparently variable within each species. Flacourtia species are often cultivated and harvested for fruit, medicinal use, or wood.
    [Show full text]
  • Widdringtonia Whytei Seeds to Temperature and Light ⁎ T.F
    Available online at www.sciencedirect.com South African Journal of Botany 81 (2012) 25–28 www.elsevier.com/locate/sajb Short communication Germination response and viability of an endangered tropical conifer Widdringtonia whytei seeds to temperature and light ⁎ T.F. Chanyenga a, , C.J. Geldenhuys b, G.W. Sileshi c a Department of Forest and Wood Science, University of Stellenbosch, c/o Forestry Research Institute of Malawi, P.O. Box 270, Zomba, Malawi b Department of Forest and Wood Science, University of Stellenbosch, c/o Forestwood cc, P.O. Box 228, La Montagne 0184, Pretoria, South Africa c World Agroforestry Centre (ICRAF), ICRA Southern Africa Programme, P.O. Box 30798, Lilongwe, Malawi Received 3 August 2011; received in revised form 10 April 2012; accepted 16 April 2012 Abstract The tropical conifer Widdringtonia whytei Rendle is an endangered species endemic to Mulanje Mountain in Malawi. A study was conducted for the first time under controlled conditions in order to assess the effects of temperature and light on germination and viability of W. whytei seeds. Seeds incubated at a constant temperature of 20 °C attained the highest cumulative germination percentage (100%) followed by 87% germination under fluctuating temperatures of 15 °C night/25 °C day. No seed germination occurred at temperatures below 15 °C. Seeds that failed to germinate at temperatures below 15 °C showed the highest (N90%) viability compared to the seeds incubated at 25 °C (60%). Across temperature regimes, germination was significantly higher under light (44.7%) than dark (35.6%) conditions. It is concluded that temperature is one of the critical factors for germination of W.
    [Show full text]
  • WRA Species Report
    Family: Salicaceae Taxon: Flacourtia indica Synonym: Flacourtia ramontchi L’Hér. Common Name: batoko plum Flacourtia sepiaria Roxb. governor's plum Gmelina indica Burm. f. (basionym) Indian plum Madagascar plum ramontchi Questionaire : current 20090513 Assessor: Chuck Chimera Designation: H(HPWRA) Status: Assessor Approved Data Entry Person: Chuck Chimera WRA Score 12 101 Is the species highly domesticated? y=-3, n=0 n 102 Has the species become naturalized where grown? y=1, n=-1 103 Does the species have weedy races? y=1, n=-1 201 Species suited to tropical or subtropical climate(s) - If island is primarily wet habitat, then (0-low; 1-intermediate; 2- High substitute "wet tropical" for "tropical or subtropical" high) (See Appendix 2) 202 Quality of climate match data (0-low; 1-intermediate; 2- High high) (See Appendix 2) 203 Broad climate suitability (environmental versatility) y=1, n=0 y 204 Native or naturalized in regions with tropical or subtropical climates y=1, n=0 y 205 Does the species have a history of repeated introductions outside its natural range? y=-2, ?=-1, n=0 y 301 Naturalized beyond native range y = 1*multiplier (see y Appendix 2), n= question 205 302 Garden/amenity/disturbance weed n=0, y = 1*multiplier (see Appendix 2) 303 Agricultural/forestry/horticultural weed n=0, y = 2*multiplier (see n Appendix 2) 304 Environmental weed n=0, y = 2*multiplier (see y Appendix 2) 305 Congeneric weed n=0, y = 1*multiplier (see y Appendix 2) 401 Produces spines, thorns or burrs y=1, n=0 y 402 Allelopathic y=1, n=0 403 Parasitic y=1,
    [Show full text]
  • Widdringtonia Cedarbergensis)
    The Conservation Genetics of the Clanwilliam Cedar (Widdringtonia cedarbergensis) by JANET THOMAS March 1995 Department of Botany Faculty of Science · UniversityUniversity ofof Cape Cape Town Town Submitted for the degree Master of Science c":·"="•''"<'':.-:.,,.c· . .". ''-~.c·c :.&.c.··'\:' ~;:·h£ Lt:i:.:~~·.:i:·~· ·.:·' r>:r·;· ~~.-~~~~- ::~· ... :..r;:c:n r.i~~~n t~·10 ~t~!~~ ~c ,.,_;,"\-~· ~: ..;·) t~:··; ~~<;:_::?; iii ,_..,.h0~e ~-~ or f:1 f·M:·t Ct~.->·::;;~:,: ;; :·; ... ~.~ L·~: 'Lh.:; r.:.:~ho~~ ·, The copyright of this thesis vests in the author. No quotation from it or information derived from it is to be published without full acknowledgement of the source. The thesis is to be used for private study or non- commercial research purposes only. Published by the University of Cape Town (UCT) in terms of the non-exclusive license granted to UCT by the author. University of Cape Town Acknowledgements I thank Professor William Bond, my supervisor, for guidance and inspiration throughout this project. Thanks are due to William Bond, Hans Nieuwmeyer, Doug Euston-Brown, Stan Ricketts, Camel, Maryke Honig and Lee Jones for their assistance in the field, particularly Doug and Stan for their death-defying rock climbs to precipitous sampling sites in the Baviaanskloof. I also thank Rob Scott-Shaw for providing seed from Cathedral Peak; Doug Jeffrey for showing me a couple of electrophoretic ropes; Robbie Robinson for his helpful comments on genetics; and Hans Nieuwmeyer for his engineering views on wind-pollination. This project was sponsored partly by FRD special programmes issued by The Percy Fitzpatrick Institute of Ornithology and mostly by South African Nature Foundation.
    [Show full text]