DOCSLIB.ORG

Ehretia Anacua / Condalia Hookeri Forest Texas Ebony – Anacua / Brasíl Forest (From International Vegetation Classification, Natureserve 2012)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Ehretia Anacua / Condalia Hookeri Forest Texas Ebony – Anacua / Brasíl Forest (From International Vegetation Classification, Natureserve 2012) 6 Major Physiographic Zones of the Lower Rio Grande Valley, Texas (from Hathcock et al. 2014, in press) South Texas Refuge Complex STRC MISSION To restore, enhance, and protect the natural diversity of the Lower Rio Grande Valley of Texas Two-Pronged Approach Acquisition -- land/easements • Create corridors* • Conserve unique biota • Very high, immediate priority Restoration -- mature riparian woodlands • Create corridors* • Augment and enhance habitat blocks • Long-term ecosystem sustainability STRC Restoration Program • Facilitate succession • 5,000 ha planted since mid-1980’s • Early sites direct-seeded/low-density (<600 plants/ha) transplants • Currently 200 ha/year @ 1,000-2,000 plants/ha (50-60 species) • Additional 3,000 ha slated for future Seedlings in “Mini” (6” x 1.5”) Plant Bands Texas ebony Ebanopsis ebano all-thorn goat-bush Castela erecta Evaluation of Effectiveness Traditional • Focus on maximum area/numbers of plants • 1st-Year Survivorship (re-plant?) • No long-term data Current • Increased focus on similarity to natural climax communities • Poor results observed anecdotally at many past sites • Possible to evaluate 15 to 25-year-old sites Study Methods • Non-Systematic, Qualitative Surveys – 2 distinct association-level mature woodland communities – noted dominant species within 4 vertical strata • Belt-Transect Surveys – 9 Sites (3 direct-seed, 5 transplant, 1 control) – counted all individual woody plants within 2 to 3-m belt Ebenopsis ebano – Ehretia anacua / Condalia hookeri Forest Texas Ebony – Anacua / Brasíl Forest (from International Vegetation Classification, NatureServe 2012) Santa Ana National Wildlife Refuge, Alamo Edge of Ebony-Anacua/Brasĺl Forest, Ranchito Tract Tamaulipan Coastal Shrubland, saline Tamaulipan Coastal Shrubland, non-saline Condalia hookeri (brasíl) Ziziphus obtusifolia (lotebush) Zanthoxylum fagara (colima) Forestiera angustifolia (elbow-bush) Guaiacum angustifolium (guayacán) Ebony-Anacua/Brasíl Forest Structure • Canopy 7-8 m tall; 80-100% closed • Dense mid-story • Open understory (80% litter/bare ground, 20% forbs/weak shrubs) Dominant Woody Species • Canopy (3): Ebenopsis ebano, Ehretia anacua, Prosopis glandulosa • Sub-Canopy (6): Condalia hookeri, Havardia pallens, Amyris madrensis, Guaiacum angustifolium, Diospyros texana, Acacia farnesiana • Mid-Story (3): Phaulothamnus spinescens, Ziziphus obtusifolia, Celtis pallida • Understory (1): Malpighia glabra Total Woody Species: 30 Tamaulipan Coastal Shrubland Structure • Canopy: overall sparse (10-50% closed), 4-5 m high • Mid-story: 1-2.5 m; patchy to dense • Understory: 0-1 m, dense Dominant Woody Species • Canopy (3): Prosopis glandulosa, Yucca treculeana, Ebenopsis ebano • Mid-Story (5): Forestiera angustifolia, Phaulothamnus spinescens,, Ziziphus obtusifolia, Celtis pallida, Zanthoxylum fagara (non-saline sites) Total Woody Species: 25 25-Year-Old Direct-Seed Site, Ranchito Tract 18-Year-Old Direct-Seed Site, Ranchito Tract Acacia farnesiana (huisache) Leucaena pulverulenta (tepeguaje) Prosopis glandulosa (honey mesquite) Parkinsonia aculeata (retama) 12-Year-Old Transplant Site, Ranchito Tract Preliminary Results of Belt-Transect Surveys at Ranchito and La Coma Tracts Area Plant Simpson Planting Year(s) Sampled Density No. Diversity Site Method Planted (ha) (No./ha) Species Index 1994- Ranchito Transplant 2.4 720 33 0.93 2005 Direct 1989, Ranchito 2.4 883 18 0.71 Seed 1996 None Ranchito 1989 1.0 777 14 0.50 (Control) La Coma Transplant 1995 0.2 4,219 27 0.81 Preliminary Results – Species Composition No. Late- Planting % Early % Late Succ. Dominant Site Method n Succ. Succ. Sp. Late-Succ. Sp. E. ebano (21%) Ranchito Transplant 1,698 51.4 40 25 7 other sp. (60%) Direct Ranchito 2,140 49.8 50.2 12 E. ebano (95%) Seed None Ranchito 752 93.9 6.1 8 --- (Control) H. pallens (40%) La Transplant 926 45.8 54.2 21 Z. fagara (20%) Coma E. anacua (11%) Discussion • Transplant sites had higher overall diversity and proportion of late-successional species • Recruitment highest, with more desirable species, at transplant sites (esp. La Coma) • Transplant sites and mature sites were fairly similar in species richness and dominants with exceptions… Discussion (cont.) Under-Represented Species – Forestiera angustifolium (elbow-bush) – Phaulothamnus spinescens (snake-eyes) – Diospyros texana (chapote) – Guaiacum angustifolia (guayacán) – Condalia hookeri (brasíl; La Coma only) – Zanthoxylum fagara (colima; Ranchito only) – Amyris madrensis (Sierra Madre torchwood; Ranchito only) Aspects Applicable to Other Restoration Projects • Qualitative Descriptions of Association- Level Dominants/Sub-Dominants (e.g., IVC Descriptions, non-systematic samples) • Measures of Recruitment/Survivorship • Control Plots (=Evidence of Project Merit) Acknowledgements American Forests (Global Re-Leaf Grant) Florentino Caldera (USFWS) Chris Pérez (USFWS) Rene Ruíz (USFWS) Mitch Sternberg (USFWS) .
Load more

Recommended publications
  • Seed Germination Characteristics of Selected Native Plants of the Lower Rio Grande Valley, Texas
    Seed germination characteristics of selected native plants of the lower Rio Grande Valley, Texas ROBINS. VORA Experhnents were conducted to identity treatments that increased 58% with 45 minutes acid treatment of huisachillo (Acacia schaf- emergence of seeds of 24 woody plant species native to the lower fwri) seeds, and 87% with acid treatment for 15 to 90 minutes of Rio Grande Valley of southern Texas. Sulfuric acid (18.4M retama (Purkinsoniu uculeutu) seeds. Similarly, germination of H&04) scarification significantly hnxeased emergence of buisachc rattlebush (Sesbania drummondii) seeds was improved by soaking (A cud& smul&i), bui~ebillo (A. scwm?ri), Texas ebony (Pithecel- in acid for up to 4 hours (Easton 1984). Acid scarification for 60 to lobiumflexicmde), tenam (P.palkns), tepeguaje (Leucaenapuhv- 90 minutes followed by cold scarification for 90 days produced best r&da), retama (porkinson& rrcrrlcou),and western soapberry results with western soapberry (Sapindus drummondii) seeds (Munson 1984). Seeds of other species, such as sugarberry (Celtis (Sapiudus &wnmlo II@); treatments such as soakhrg in disHBed water, gibberellic acid (0.3 or 1.4 mMol), or other scari5cation luevigata), might undergo periods of dormancy that can be broken techniques were not as effective as add. Fresh guajillo (A. be&n- by prechilling (Bonner 1974,1984). Fulbright et al. (1986a, b) used died’) seedr required no treatment, but g-month-old seeds had a combination of mechanical scarification, gibberellic acid, and heat/ chill treatments to obtain 62% germination of granjeno (Cel- higher emergence with add scarification. Texas ebony emergence was higher from lO-month-old seed treated with acid than from tis p&da) seeds; and gibberellic acid, moist prechilling for 2 fresh seeds.
    [Show full text]
  • Valley Native Plants for Birds
    Quinta Mazatlan WBC 1/19/17 SB 1 TOP VALLEY NATIVE FRUITING PLANTS FOR BIRDS TALL TREES, 30 FT OR GREATER: Common Name Botanical Name Height Width Full Shade/ Full Evergreen Bloom Bloom Fruit Notes (ft) (ft) Sun Sun Shade Color Period Color Anacua, Ehretia anacua 20-50 40-60 X X X White Summer- Yellow- Leaves feel like sandpaper; Sandpaper Tree, Fall Orange fragrant flowers. Mature trunk has Sugarberry characteristic outgrowth which resembles cylinders put together to form it. Edible fruit. Butterfly nectar plant. Sugar Hackberry, Celtis laevigata 30-50 50 X X X Greenish, Spring Red Fast-growing, short-lived tree, with Palo Blanco tiny an ornamental grey, warty bark. Shallow rooted and prone to fungus; should be planted away from structures. Caterpillar host plant. SMALL TREES (LESS THAN 30 FT): Common Name Botanical Name Height Width Full Shade/ Full Evergreen Bloom Bloom Fruit Notes (ft) (ft) Sun Sun Shade Color Period Color Brasil, Condalia hookeri 12-15 15 X X X Greenish- Spring- Black Branches end in thorns; shiny Capul Negro, yellow, Summer leaves. Capulín, Bluewood small Condalia Coma, Sideroxylon 15-30 15 X X X White Summer- Blue- Very fragrant flowers; sticky, edible Chicle, celastrinum Fall, after black fruit; thorny; glossy leaves. Saffron Plum rain Granjeno, Celtis pallida 10-20 12 X X X X Greenish, Spring Orange Edible fruit; spiny; bark is mottled Spiny tiny grey. Can be small tree or shrub. Hackberry Texas Diospyros 15-30 15 X X X X White Spring Black Mottled, peeling ornamental bark; Persimmon, texana great native choice instead of the Chapote Crape Myrtle.
    [Show full text]
  • December 2012 Number 1
    Calochortiana December 2012 Number 1 December 2012 Number 1 CONTENTS Proceedings of the Fifth South- western Rare and Endangered Plant Conference Calochortiana, a new publication of the Utah Native Plant Society . 3 The Fifth Southwestern Rare and En- dangered Plant Conference, Salt Lake City, Utah, March 2009 . 3 Abstracts of presentations and posters not submitted for the proceedings . 4 Southwestern cienegas: Rare habitats for endangered wetland plants. Robert Sivinski . 17 A new look at ranking plant rarity for conservation purposes, with an em- phasis on the flora of the American Southwest. John R. Spence . 25 The contribution of Cedar Breaks Na- tional Monument to the conservation of vascular plant diversity in Utah. Walter Fertig and Douglas N. Rey- nolds . 35 Studying the seed bank dynamics of rare plants. Susan Meyer . 46 East meets west: Rare desert Alliums in Arizona. John L. Anderson . 56 Calochortus nuttallii (Sego lily), Spatial patterns of endemic plant spe- state flower of Utah. By Kaye cies of the Colorado Plateau. Crystal Thorne. Krause . 63 Continued on page 2 Copyright 2012 Utah Native Plant Society. All Rights Reserved. Utah Native Plant Society Utah Native Plant Society, PO Box 520041, Salt Lake Copyright 2012 Utah Native Plant Society. All Rights City, Utah, 84152-0041. www.unps.org Reserved. Calochortiana is a publication of the Utah Native Plant Society, a 501(c)(3) not-for-profit organi- Editor: Walter Fertig ([email protected]), zation dedicated to conserving and promoting steward- Editorial Committee: Walter Fertig, Mindy Wheeler, ship of our native plants. Leila Shultz, and Susan Meyer CONTENTS, continued Biogeography of rare plants of the Ash Meadows National Wildlife Refuge, Nevada.
    [Show full text]
  • Research Advances on Leaf and Wood Anatomy of Woody Species
    rch: O ea pe es n A R t c s c Rodriguez et al., Forest Res 2016, 5:3 e e r s o s Forest Research F DOI: 10.4172/2168-9776.1000183 Open Access ISSN: 2168-9776 Research Article Open Access Research Advances on Leaf and Wood Anatomy of Woody Species of a Tamaulipan Thorn Scrub Forest and its Significance in Taxonomy and Drought Resistance Rodriguez HG1*, Maiti R1 and Kumari A2 1Universidad Autónoma de Nuevo León, Facultad de Ciencias Forestales, Carr. Nac. No. 85 Km. 45, Linares, Nuevo León 67700, México 2Plant Physiology, Agricultural College, Professor Jaya Shankar Telangana State Agricultural University, Polasa, Jagtial, Karimnagar, Telangana, India Abstract The present paper make a synthesis of a comparative leaf anatomy including leaf surface, leaf lamina, petiole and venation as well as wood anatomy of 30 woody species of a Tamaulipan Thorn Scrub, Northeastern Mexico. The results showed a large variability in anatomical traits of both leaf and wood anatomy. The variations of these anatomical traits could be effectively used in taxonomic delimitation of the species and adaptation of the species to xeric environments. For example the absence or low frequency of stomata on leaf surface, the presence of long palisade cells, and presence of narrow xylem vessels in the wood could be related to adaptation of the species to drought. Besides the species with dense venation and petiole with thick collenchyma and sclerenchyma and large vascular bundle could be well adapted to xeric environments. It is suggested that a comprehensive consideration of leaf anatomy (leaf surface, lamina, petiole and venation) and wood anatomy should be used as a basis of taxonomy and drought resistance.
    [Show full text]
  • Texas Big Tree Registry a List of the Largest Trees in Texas Sponsored by Texas a & M Forest Service
    Texas Big Tree Registry A list of the largest trees in Texas Sponsored by Texas A & M Forest Service Native and Naturalized Species of Texas: 320 ( D indicates species naturalized to Texas) Common Name (also known as) Latin Name Remarks Cir. Threshold acacia, Berlandier (guajillo) Senegalia berlandieri Considered a shrub by B. Simpson 18'' or 1.5 ' acacia, blackbrush Vachellia rigidula Considered a shrub by Simpson 12'' or 1.0 ' acacia, Gregg (catclaw acacia, Gregg catclaw) Senegalia greggii var. greggii Was named A. greggii 55'' or 4.6 ' acacia, Roemer (roundflower catclaw) Senegalia roemeriana 18'' or 1.5 ' acacia, sweet (huisache) Vachellia farnesiana 100'' or 8.3 ' acacia, twisted (huisachillo) Vachellia bravoensis Was named 'A. tortuosa' 9'' or 0.8 ' acacia, Wright (Wright catclaw) Senegalia greggii var. wrightii Was named 'A. wrightii' 70'' or 5.8 ' D ailanthus (tree-of-heaven) Ailanthus altissima 120'' or 10.0 ' alder, hazel Alnus serrulata 18'' or 1.5 ' allthorn (crown-of-thorns) Koeberlinia spinosa Considered a shrub by Simpson 18'' or 1.5 ' anacahuita (anacahuite, Mexican olive) Cordia boissieri 60'' or 5.0 ' anacua (anaqua, knockaway) Ehretia anacua 120'' or 10.0 ' ash, Carolina Fraxinus caroliniana 90'' or 7.5 ' ash, Chihuahuan Fraxinus papillosa 12'' or 1.0 ' ash, fragrant Fraxinus cuspidata 18'' or 1.5 ' ash, green Fraxinus pennsylvanica 120'' or 10.0 ' ash, Gregg (littleleaf ash) Fraxinus greggii 12'' or 1.0 ' ash, Mexican (Berlandier ash) Fraxinus berlandieriana Was named 'F. berlandierana' 120'' or 10.0 ' ash, Texas Fraxinus texensis 60'' or 5.0 ' ash, velvet (Arizona ash) Fraxinus velutina 120'' or 10.0 ' ash, white Fraxinus americana 100'' or 8.3 ' aspen, quaking Populus tremuloides 25'' or 2.1 ' baccharis, eastern (groundseltree) Baccharis halimifolia Considered a shrub by Simpson 12'' or 1.0 ' baldcypress (bald cypress) Taxodium distichum Was named 'T.
    [Show full text]
  • Honey Bee Suite © Rusty Burlew 2015 Master Plant List by Scientific Name United States
    Honey Bee Suite Master Plant List by Scientific Name United States © Rusty Burlew 2015 Scientific name Common Name Type of plant Zone Full Link for more information Abelia grandiflora Glossy abelia Shrub 6-9 http://plants.ces.ncsu.edu/plants/all/abelia-x-grandiflora/ Acacia Acacia Thorntree Tree 3-8 http://www.2020site.org/trees/acacia.html Acer circinatum Vine maple Tree 7-8 http://www.nwplants.com/business/catalog/ace_cir.html Acer macrophyllum Bigleaf maple Tree 5-9 http://treesandshrubs.about.com/od/commontrees/p/Big-Leaf-Maple-Acer-macrophyllum.htm Acer negundo L. Box elder Tree 2-10 http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=a841 Acer rubrum Red maple Tree 3-9 http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=275374&isprofile=1&basic=Acer%20rubrum Acer rubrum Swamp maple Tree 3-9 http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=275374&isprofile=1&basic=Acer%20rubrum Acer saccharinum Silver maple Tree 3-9 http://en.wikipedia.org/wiki/Acer_saccharinum Acer spp. Maple Tree 3-8 http://en.wikipedia.org/wiki/Maple Achillea millefolium Yarrow Perennial 3-9 http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b282 Aesclepias tuberosa Butterfly weed Perennial 3-9 http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b490 Aesculus glabra Buckeye Tree 3-7 http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=281045&isprofile=1&basic=buckeye
    [Show full text]
  • Landscape Plant List
    APPENDIX B-Tree Technical Manual, Download at the "Unified Development Code" from: http://www.cityofedinburg.com/ City of Edinburg Native (Permitted) Plant List e e = P Wildlif s t rac espan: Scientific Name Family Common Name(s) Slow) Medium, Fast, COMMENTS Perennial, A=Annual, D=deciduous Period Blooming Color Bloom Aquatic Soils Moist Riparian Upland Full Shade Shade/Sun Full Sun Att Lif (Bi=Bird Bu=Butterfly(Bi=Bird Be=Bee Height Mature Width Mature Rate Growth ( Spacing Large Trees (Parking lot shade) Acacia wrightii Fabaceae Wright's Acacia X X X Be 30' 20' Medium 20' P, D Spring White Recurved spines; heat & drought tolerant Fast growing shade tree; small fruit is extremely valuable for birds; limbs fairly Celtis laevigata Ulmaceae Sugar Hackberry X X X X X Bi 45' 50' Fast 50' P, D Spring Greenish brittle; drops fine, sticky sap, which is messy Fragrant, showy clusters of small, white flowers produce large quantities of fruit Ehretia anacua Boraginaceae Anacua X X X Bi 45' 50' Slow 50' P, D Jun-Oct White valuable to wildlife; fruit drop can be messy; good shade tree Large, spreading tree that requires regular watering to reach full potential; Fraxinus berlandieriana Oleaceae Mexican Ash, Fresno X X X X Bi 50' 75' Medium 75' P, D Spring Greenish papery, winged fruits on female trees only Very fast growing tree, but relatively Tepeguaje, Lead Leucaena pulverulenta Fabaceae X X Be 40' 50' Fast 50' P, D Spring Summer White short lived; limbs brittle and break easily, Tree and subject to girdling beetles Dense shade tree provides important
    [Show full text]
  • Plants for Bats
    Suggested Native Plants for Bats Nectar Plants for attracting moths:These plants are just suggestions based onfloral traits (flower color, shape, or fragrance) for attracting moths and have not been empirically tested. All information comes from The Lady Bird Johnson's Wildflower Center's plant database. Plant names with * denote species that may be especially high value for bats (based on my opinion). Availability denotes how common a species can be found within nurseries and includes 'common' (found in most nurseries, such as Rainbow Gardens), 'specialized' (only available through nurseries such as Medina Nursery, Natives of Texas, SA Botanical Gardens, or The Nectar Bar), and 'rare' (rarely for sale but can be collected from wild seeds or cuttings). All are native to TX, most are native to Bexar. Common Name Scientific Name Family Light Leaves Water Availability Notes Trees: Sabal palm * Sabal mexicana Arecaceae Sun Evergreen Moderate Common Dead fronds for yellow bats Yaupon holly Ilex vomitoria Aquifoliaceae Any Evergreen Any Common Possumhaw is equally great Desert false willow Chilopsis linearis Bignoniaceae Sun Deciduous Low Common Avoid over-watering Mexican olive Cordia boissieri Boraginaceae Sun/Part Evergreen Low Common Protect from deer Anacua, sandpaper tree * Ehretia anacua Boraginaceae Sun Evergreen Low Common Tough evergreen tree Rusty blackhaw * Viburnum rufidulum Caprifoliaceae Partial Deciduous Low Specialized Protect from deer Anacacho orchid Bauhinia lunarioides Fabaceae Partial Evergreen Low Common South Texas species
    [Show full text]
  • Draft Environmental Assessment
    DRAFT ENVIRONMENTAL ASSESSMENT ARROYO COLORADO at HARLINGEN FLOOD FLOW IMPROVEMENT PROJECT CAMERON COUNTY, TEXAS Prepared for: United States Section, International Boundary and Water Commission El Paso, Texas Prepared by: Cox|McLain Environmental Consulting, Inc. Austin, Texas May 2020 Draft Environmental Assessment and Finding of No Significant Impact Arroyo Colorado at Harlingen Flood Flow Improvement Project Cameron County, Texas Lead Agency: United States Section, International Boundary and Water Commission Preferred alternative: Expanded Vegetation Removal and Sediment Removal along the Arroyo Colorado Floodway Report Designation: Draft Environmental Assessment (EA) Abstract: The USIBWC is considering several options that would restore the full flood- conveyance capabilities to a 6.3-mile reach of Arroyo Colorado between U.S. Highway 77 Business (US 77 Business) and Cemetery Road. The Preferred Alternative would dredge sediment from the channel throughout the reach and expand existing vegetation management operations. Vegetation management currently occurs along a 3.7-mile reach of Arroyo Colorado between US 77 Business and Farm-to-Market Road 509 (FM 509). The Preferred Alternative would expand vegetation management operations to include the 2.6-mile reach from FM 509 to Cemetery Road. These actions are intended to restore Arroyo Colorado’s design flood conveyance capacity of 21,000 cubic feet per second. The Draft Environmental Assessment evaluates potential environmental impacts of the No Action Alternative and the Preferred Alternative. Two additional alternatives were considered and evaluated but were removed from consideration because they were either not effective or not feasible. Potential impacts on natural, cultural, and other resources were evaluated. A Finding of No Significant Impact has been prepared for the Preferred Alternative based on a review of the facts and analyses contained in the Environmental Assessment.
    [Show full text]
  • Plants, Volume 1, Number 1 (August 1979)
    Desert Plants, Volume 1, Number 1 (August 1979) Item Type Article Publisher University of Arizona (Tucson, AZ) Journal Desert Plants Rights Copyright © Arizona Board of Regents. The University of Arizona. Download date 02/10/2021 01:18:53 Link to Item http://hdl.handle.net/10150/528188 Volume I. Number 1. August 1979 Desert Published by The University of Arizona for the Plants Boyce Thompson Southwestern Arboretum Assisting Nature with Plant Selection4 Larry K. Holzworth Aberrant Sex -Ratios in Jojoba Associated with Environmental Factors 8 Serena L. Cole 'J. G. Lemmon & Wife,' Plant Explorers in Arizona, California, and Nevada12 Frank S. Crosswhite 'Extinct' Wire -Lettuce, Stephanomeria schottii (Compositae), Rediscovered in Arizona after More Than One Hundred Years22 Elinor Lehto Southwestern Indian Sunflowers23 Gary Paul Nabhan Transition from a Bermudagrass Lawn to a Landscape of Rock or Gravel Mulch 27 Charles Sacamano Preliminary Evaluation of Cold- hardiness in Desert Landscaping Plants at Central Arizona College29 William A. Kinnison Effects of the 1978 Freeze on Native Plants of Sonora, Mexico33 Warren D. Jones The Severe Freeze of 1978 -79 in the Southwestern United States37 The National Climate Program Act of 197840 Reviews42 Arboretum Progress46 R. T. McKittrick Volume 1. Number 1. August 1979 Published by The University of Arizona Desert Plants for the Boyce Thompson Southwestern Arboretum The Severe Freeze of 1978 -79 in the Contents Southwestern United States37 Correspondents: Editorial Barrie D. Coate, Saratoga Horticultural Foundation; Dara E. Emery, Santa Barbara Botanic Garden; Louis C. Assisting Nature with Plant Selection 4 Erickson, Botanic Gardens, University of California, River- Larry K. Holzworth, USDA Soil Conservation side; Wayne L.
    [Show full text]
  • Molecular Evidence for the Age, Origin, and Evolutionary History of the American Desert Plant Genus Tiquilia (Boraginaceae)
    Molecular Phylogenetics and Evolution 39 (2006) 668–687 www.elsevier.com/locate/ympev Molecular evidence for the age, origin, and evolutionary history of the American desert plant genus Tiquilia (Boraginaceae) Michael J. Moore ¤, Robert K. Jansen Section of Integrative Biology and Institute of Cellular and Molecular Biology, University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA Received 30 August 2005; revised 11 January 2006; accepted 12 January 2006 Available online 21 February 2006 Abstract Although the deserts of North America are of very recent origin, their characteristic arid-adapted endemic plant lineages have been sug- gested to be much older. Earlier researchers have hypothesized that the ancestors of many of these modern desert lineages Wrst adapted to aridity in highly localized arid or semi-arid sites as early as the late Cretaceous or early Tertiary, and that these lineages subsequently spread and diversiWed as global climate became increasingly arid during the Cenozoic. No study has explicitly examined these hypotheses for any North American arid-adapted plant group. The current paper tests these hypotheses using the genus Tiquilia (Boraginaceae), a diverse North American desert plant group. A strongly supported phylogeny of the genus is estimated using combined sequence data from three chloroplast markers (matK, ndhF, and rps16) and two nuclear markers (ITS and waxy). Ages of divergence events within the genus are estimated using penalized likelihood and a molecular clock approach on the ndhF tree for Tiquilia and representative outgroups, including most of the major lineages of Boraginales. The dating analysis suggests that the stem lineage of Tiquilia split from its nearest extant relative in the Paleocene or Eocene (»59–48 Ma).
    [Show full text]
  • Sabal Apr 11
    The Sabal April 2011 Volume 28, number 4 In this issue: Native Plant Project April speaker below. (NPP) Board of Directors Arroyo Colorado, A Threatened Riparian Corridor p 2 President: Chris Hathcock Arroyo Colorado Brush, by Heep & Lester p 3-6 Vice Pres.: Martin Hagne LRGV Native Plant Sources, NPP Sponsors p 7 Secretary: Susan Thompson Board Meeting Highlights p 7 Treasurer: Bert Wessling Membership Application (cover) p 8 Diann Ballesteros April 30th Field Trip to Arroyo Brush, Harlingen p 8 Carol Goolsby Sue Griffin Ken King Sande Martin Jann Miller Editor: Editorial Advisory Board: Eleanor Mosimann Diann Ballesteros Christina Mild Kathy Sheldon Mike Heep <[email protected]> Ann Treece Vacek Ken King Submissions of relevant Eleanor Mosimann NPP Advisory Board articles and/or photos Betty Perez Mike Heep are welcomed. Dr. Alfred Richardson Benito Trevino April Meeting of the Native Plant Project: “Texas Native Ornamental Wetland Plants” by John Lloyd-Reilley, Mgr, Kika de la Garza Plant Materials Center, Kingsville Tuesday, April 26th, at 7:30 P.M. Valley Nature Center, 301 S. Border (in Gibson Park), Weslaco. (Plant photos by Shelly Maher.) FAR LEFT: Coastal Goldenrod with Buckeye Butterfly. LEFT: Squarestem Spikerush. RIGHT: Swamp Sunflower. FAR RIGHT: John Lloyd-Reilley. COVER: Scarlet Rose Mallow. The Sabal is the newsletter of the Native Plant Project. It conveys information on native plants, habitats and environment of the Lower Rio Grande Valley, Texas. Previous Sabal issues are posted on our website [www.NativePlantProject.org]. Electronic versions of our Handbooks on recommended natives for landscaping are also posted there. Change of address, missing issue, or membership: <[email protected]> page President The Sabal, - Chris April Hathcock 2011, Vol.
    [Show full text]