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PLANT SCIENCE BULLETIN a Publication of the Botanical Society of America, Inc
PLANT SCIENCE BULLETIN A Publication of the Botanical Society of America, Inc. Plant ldioblasts: Remarkable Examplesof Cell Specialization ADRIANCEs. FOSTER University of California (~~TE: Th!s paper,slightly a,bbreviat~d,is the ad~ress.of the chyma tissues, the remarkable cystolith-containing cells retiring president of the Botan,lcal SOCIety of. A?,enca gIVen ~t of the epidermis of Fiscus and Urtic d th ft - the annual banquet of the SOCIety, held at MIChIgan State Um- .,. a an e 0 en gro versity on September8, 1955. Dr. Foster'saddress was illus- tesque ramIfied sclerelds found In the leaves of many trated with a seriesof excellentslides of mixed botanicaland plants. Unicellular trichomes are epidermal idioblasts psycho-entomologicalnature.) and the guard cells of stomata might be regarded from One of the privileges-and certainly one of the pen- ~~ ontogenetic point of view as "paired" or "twin" alties--of having 'served as President of the Botanical IdlOblasts. Society is the delivery of a retiring addressat the culmi- My own interest in this motley assemblageof idio- nation of our annual meeting. In your present well-fed blastic cells arose during my early years as a teacher of and relaxed state, some of you may be resigned to listen- plant anatomy. It seemedto me then-as it does now ing to a historical and soporific resume of some special- -that any decision as to the suitable criteria to be used ized area of modern botanical research. A number of in classifying and discussing cell types and tissues in you perhaps may anticipate-probably with dismay- plants must consider the disturbing frequency of oc- a much broader non-technical type of discourse in- currence of idioblasts. -
GSBS News, Summer 2009
GSBS NEWS Summer 2009 Coming Soon... Two Specialized Masters Programs— TABLE OF CONTENTS Evoluti on, Progress, and Philanthropy 2 SPECIALIZED MASTERS PROGRAMS Geneti c Counseling Celebrates 20th Anniversary A celebrati on will be held October 3, 2009 marking the 20th anniversary of the start 3 DEAN’S NOTES of the UT Graduate School of Biomedical Sciences Geneti c Counseling Program. Founded by Jacqueline T. Hecht, Ph.D., and medical director Hope Northrup, M.D., 4 COMMENCEMENT ADDRESS (both are GSBS faculty at UT-Medical School)—the program is rich in its collabora- MICHAEL J. ZIGMOND, PH.D. ti ve structure with faculty at several Health Science Center Schools, M. D. Anderson Cancer Center and Baylor College of Medicine. The initi al graduati ng class in 1991 COMMENCEMENT PHOTOS included a single person. Today the Program, lead by Director, Claire Singletary, 6 MS, graduates 6 annually; it is the only accredited program of its kind in the state of Texas and only one of 31 in the country. Its dedicated purpose is to train health 8 COMMENCEMENT care professionals who provide supporti ve and educati onal counseling to families with geneti c condi- GREETINGS ti ons, birth defects, and geneti c predishpositi ons such as Achondroplasia, Down syndrome, cleft lip GIGI LOZANO, PH.D. and palate, spina bifi da, and hereditary breast and ovarian cancer. FACULTY PRESIDENT Geneti c Counseling graduate students do not receive tuiti on or sti pend support because it is a ter- minal Masters degree program; however, winning a competi ti ve scholarship provides a modest sum 9 GRADUATING CLASS and triggers in-state rather than out-of-state tuiti on for the student (about four ti mes as much). -
Introduction the Age of Biology
INTRODUCTION THE AGE OF BIOLOGY An organism is the product of its genetic constitution and its en- vironment . no matter how uniform plants are genotypically, they cannot be phenotypically uniform or reproducible, unless they have developed under strictly uniform conditions. — Frits Went, 1957 A LITERARY and cinematic sensation, Andy Weir’s The Martian is engi- neering erotica. The novel thrills with minute technical details of com- munications, rocket fuel, transplanetary orbital calculations, and botany. The action concerns a lone astronaut left on Mars struggling to survive for 1,425 days using only the materials that equipped a 6-person, 30-day mission. Food is an early crisis: the astronaut has only 400 days of meals plus 12 whole potatoes. Combining his expertise in botany and engineer- ing, the astronaut first works to create in his Mars habitat the perfect Earth conditions for his particular potatoes, namely, a temperature of 25.5°C, plenty of light, and 250 liters of water. Consequently, his potatoes grow at a predicted rate to maturity in 40 days, thus successfully conjur- ing sufficient food to last until his ultimate rescue at the end of the novel. Unlike so many of the technical details deployed throughout the novel, the ideal conditions for growing potatoes are just a factoid. Whereas readers of the novel get to discover how to make water in a process oc- cupying twenty pages, the discovery of the ideal growing conditions of the particular potatoes brought to Mars is given one line.1 Undoubtedly, making water from rocket fuel is tough, but getting a potato’s maximum 3 © 2017 University of Pittsburgh Press. -
State of New York City's Plants 2018
STATE OF NEW YORK CITY’S PLANTS 2018 Daniel Atha & Brian Boom © 2018 The New York Botanical Garden All rights reserved ISBN 978-0-89327-955-4 Center for Conservation Strategy The New York Botanical Garden 2900 Southern Boulevard Bronx, NY 10458 All photos NYBG staff Citation: Atha, D. and B. Boom. 2018. State of New York City’s Plants 2018. Center for Conservation Strategy. The New York Botanical Garden, Bronx, NY. 132 pp. STATE OF NEW YORK CITY’S PLANTS 2018 4 EXECUTIVE SUMMARY 6 INTRODUCTION 10 DOCUMENTING THE CITY’S PLANTS 10 The Flora of New York City 11 Rare Species 14 Focus on Specific Area 16 Botanical Spectacle: Summer Snow 18 CITIZEN SCIENCE 20 THREATS TO THE CITY’S PLANTS 24 NEW YORK STATE PROHIBITED AND REGULATED INVASIVE SPECIES FOUND IN NEW YORK CITY 26 LOOKING AHEAD 27 CONTRIBUTORS AND ACKNOWLEGMENTS 30 LITERATURE CITED 31 APPENDIX Checklist of the Spontaneous Vascular Plants of New York City 32 Ferns and Fern Allies 35 Gymnosperms 36 Nymphaeales and Magnoliids 37 Monocots 67 Dicots 3 EXECUTIVE SUMMARY This report, State of New York City’s Plants 2018, is the first rankings of rare, threatened, endangered, and extinct species of what is envisioned by the Center for Conservation Strategy known from New York City, and based on this compilation of The New York Botanical Garden as annual updates thirteen percent of the City’s flora is imperiled or extinct in New summarizing the status of the spontaneous plant species of the York City. five boroughs of New York City. This year’s report deals with the City’s vascular plants (ferns and fern allies, gymnosperms, We have begun the process of assessing conservation status and flowering plants), but in the future it is planned to phase in at the local level for all species. -
Notes on Variation and Geography in Rayjacksonia Phyllocephala (Asteraceae: Astereae)
Nesom, G.L., D.J. Rosen, and S.K. Lawrence. 2013. Notes on variation and geography in Rayjacksonia phyllocephala (Asteraceae: Astereae). Phytoneuron 2013-53: 1–15. Published 12 August 2013. ISSN 2153 733X NOTES ON VARIATION AND GEOGRAPHY IN RAYJACKSONIA PHYLLOCEPHALA (ASTERACEAE: ASTEREAE) GUY L. NESOM 2925 Hartwood Drive Fort Worth, Texas 76109 [email protected] DAVID J. ROSEN Department of Biology Lee College Baytown, Texas 77522-0818 [email protected] SHIRON K. LAWRENCE Department of Biology Lee College Baytown, Texas 77522-0818 ABSTRACT Inflorescences of Rayjacksonia phyllocephala in the disjunct Florida population system are characterized by heads on peduncles with leaves mostly reduced to linear bracts; heads in inflorescences of the Mexico-Texas-Louisiana system are immediately subtended by relatively unreduced leaves. The difference is consistent and justifies recognition of the Florida system as R. phyllocephala var. megacephala (Nash) D.B. Ward. Scattered waifs between the two systems are identified here as one or the other variety, directly implying their area of origin. In the eastern range of var. phyllocephala , at least from Brazoria County, Texas, eastward about 300 miles to central Louisiana, leaf margins vary from entire to deeply toothed-spinulose. In contrast, margins are invariably toothed-spinulose in var. megacephala as well as in the rest of southeastern Texas (from Brazoria County southwest) into Tamaulipas, Mexico. In some of the populations with variable leaf margins, 70-95% of the individuals have entire to mostly entire margins. KEY WORDS : Rayjacksonia , morphological variation, leaf margins, disjunction, waifs Rayjacksonia phyllocephala (DC.) Hartman & Lane (Gulf Coast camphor-daisy) is an abundant and conspicuous species of the shore vegetation around the Gulf of Mexico. -
Haverford College Calendar 1976-1977
Haverford College Calendar 1976-1977 FIRST SEMESTER Sept. Freshmen and Transfer Students arrive (Customs \Veek) ................. Sat. 4 Returning students arrive ............................................. Wed. 8 Freshmen and Transfer academic course registration to be completed by ............................................ 5:00p.m. Wed. 8 Upperclassmen register for Physical Education courses .................. Wed. 8 Opening Collection ........................................ 8:00 p.m. Wed. 8 First semester classes begin ................................ .. 8:30 a.m. Thu. 9 First faculty meeting ....................................... .4:15 p.m. Thu. 9 Readmitted student academic course registration to be completed by .... 4:00 p.m. Fri. 10 Final academic course registration ;verification ...... Thu. 23, Fri. 24 and Mon. 27 Oct. Last day for dropping a course without penalty ............... 5:00p.m. Thu. 7 Last day to request no-numerical-grade option ............... 5:00 p.m. Thu. 7 End of one-half semester courses ...................................... Fri. 22 Fall Vacation .............. Begins 4:00 p.m. Fri. 22 and ends 8:30a.m. Wed. 27 Nov. Fall term Physical Education courses end ............................... Fri. 5 Registration for Winter Term Physical Education courses Mon. 8 through Thu. 11 Registration for Spring Semester Academic courses ...... Mon. 15 through Fri. 19 Thanksgiving Vacation .... Begins 4:00p.m. Wed. 24 and ends 8:30a.m. Mon. 29 Dec. Midyear self-scheduled exam sign-up in Recorder's Office .. Wed. 1 through Fri. 3 Last day of classes ................................................... Tue. 14 Reading period (self-scheduled examinations may be taken) Wed. 15 and Thu. 16 All papers (except those in lieu of examinations) due by ... .4:00p.m. Thu. 16 Papers in lieu of examinations (and laboratory notebooks) due as scheduled by instructor, but not later than .............. -
History of Water and Habitat Improvement in the Nueces Estuary, Texas, USA
An online, peer-reviewed journal texaswaterjournal.org published in cooperation with the Texas Water Resources Institute TEXAS WATER JOURNAL Volume 2, Number 1 2011 TEXAS WATER JOURNAL Volume 2, Number 1 2011 ISSN 2160-5319 texaswaterjournal.org THE TEXAS WATER JOURNAL is an online, peer-reviewed journal devoted to the timely consideration of Texas water resources management and policy issues. The jour- nal provides in-depth analysis of Texas water resources management and policies from a multidisciplinary perspective that integrates science, engineering, law, planning, and other disciplines. It also provides updates on key state legislation and policy changes by Texas administrative agencies. For more information on TWJ as well as TWJ policies and submission guidelines, please visit texaswaterjournal.org. Editor-in-Chief Managing Editor Todd H. Votteler, Ph.D. Kathy Wythe Guadalupe-Blanco River Authority Texas Water Resources Institute Texas A&M Institute of Renewable Natural Resources Editorial Board Kathy A. Alexander Layout Editor Leslie Lee Robert Gulley, Ph.D. Texas Water Resources Institute Texas A&M Institute of Renewable Natural Resources Texas A&M Institute of Renewable Natural Resources Robert Mace, Ph.D. Website Editor Texas Water Development Board Jaclyn Tech Texas Water Resources Institute Todd H. Votteler, Ph.D. Texas A&M Institute of Renewable Natural Resources Guadalupe-Blanco River Authority Ralph A. Wurbs, Ph.D. Texas Water Resources Institute The Texas Water Journal is published in cooperation with the Texas Water Resources Institute, part of Texas AgriLife Research, the Texas AgriLife Extension Service, and the College of Agriculture and Life Sciences at Texas A&M University. Cover photo: Texas Parks and Wildlife Department 97 Texas Water Resources Institute Texas Water Journal Volume 2, Number 1, Pages 97–111, December 2011 History of Water and Habitat Improvement in the Nueces Estuary, Texas, USA Erin M. -
Texas Prairie Dawn-Flower (Hymenoxys Texana) 5-Year Review
Texas prairie dawn-flower (Hymenoxys texana) 5-Year Review: Summary and Evaluation Photo credit: USFWS U.S. Fish and Wildlife Service Texas Coastal Ecological Services Field Office Houston, Texas Table of Contents ABBREVIATIONS ........................................................................................................................ 3 1.0 GENERAL INFORMATION .......................................................................................... 4 2.0 REVIEW ANALYSIS ...................................................................................................... 7 2.4 SYNTHESIS .................................................................................................................. 24 3.0 RESULTS....................................................................................................................... 25 4.0 RECOMMENDATIONS FOR FUTURE ACTIONS.................................................... 26 5.0 REFERENCES ............................................................................................................... 28 Appendix A ................................................................................................................................... 31 Recommendation resulting from the 5-Year Review: .................................................................. 34 Figures Figure 1 Current H. texana county occurrences ............................................................................. 9 Tables Table 1 Renaming of species historically associated with H. texana .......................................... -
Pau D'arco(Handroanthus Spp
Pau d'arco(Handroanthus spp. Mart ex DC Mattos) taheebo (ant wood), tajy (‘to have strength and vigour’ in Guarani and Tupi) or red (or purple) lapacho.1 In Australia its common name is trumpet tree.2 There is much confusion over the taxonomical division of the group of plants in the Bignoniaceae family, commonly and collectively known as pau d’arco, that have medicinal uses. The literature interchanges the genera Tabebuia, Handroanthus and Tecoma. In relation to this, pau d’arco has been under scrutiny in regard to the correct identity of the species of plant matter used in fl uid extract manufacture. It is quite possible that there is confusion among even trained gatherers. One specifi c way of distinguishing species is at the seedling stage. The four- leaf clover-like cotyledons are distinctly deeply cleft.3 Pau d’arco has recently undergone taxonomic revision Family and as a result the species name has changed. Formerly Bignoniaceae (Jacaranda) known botanically as Tabebuia impetiginosa, it has been reclassifi ed as Handroanthus impetiginosus (Mart. ex DC.) Parts Used Mattos. This is the accepted name and the former names are now synonyms.4 Dried inner bark Synonyms: Tabebuia impetiginosa (Mart. ex DC.) Standley, Tecoma impetiginosa Mart. ex DC, Tabebuia avellanedae Lorentz ex Griseb, Gelseminum avellanedae (Lorentz ex Grisebach) Kuntze, Handroanthus avellanedae (Lorentz ex Griseback) Mattos, Tabebuia palmeri Rose, Tecoma impetiginosa var. lepidota, Handroanthus impetiginosus var. lepidotus Mattos, Tecoma adenophylla K. Schum ex Bureau and K.Schum, Tecoma ipe var. integra Sprague, Tecoma integrum (Sprague), Tabebuia ipe var. integra (Sprague) Sandwith, Tecoma ipe var. -
Tree and Tree-Like Species of Mexico: Asteraceae, Leguminosae, and Rubiaceae
Revista Mexicana de Biodiversidad 84: 439-470, 2013 Revista Mexicana de Biodiversidad 84: 439-470, 2013 DOI: 10.7550/rmb.32013 DOI: 10.7550/rmb.32013439 Tree and tree-like species of Mexico: Asteraceae, Leguminosae, and Rubiaceae Especies arbóreas y arborescentes de México: Asteraceae, Leguminosae y Rubiaceae Martin Ricker , Héctor M. Hernández, Mario Sousa and Helga Ochoterena Herbario Nacional de México, Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México. Apartado postal 70- 233, 04510 México D. F., Mexico. [email protected] Abstract. Trees or tree-like plants are defined here broadly as perennial, self-supporting plants with a total height of at least 5 m (without ascending leaves or inflorescences), and with one or several erect stems with a diameter of at least 10 cm. We continue our compilation of an updated list of all native Mexican tree species with the dicotyledonous families Asteraceae (36 species, 39% endemic), Leguminosae with its 3 subfamilies (449 species, 41% endemic), and Rubiaceae (134 species, 24% endemic). The tallest tree species reach 20 m in the Asteraceae, 70 m in the Leguminosae, and also 70 m in the Rubiaceae. The species-richest genus is Lonchocarpus with 67 tree species in Mexico. Three legume genera are endemic to Mexico (Conzattia, Hesperothamnus, and Heteroflorum). The appendix lists all species, including their original publication, references of taxonomic revisions, existence of subspecies or varieties, maximum height in Mexico, and endemism status. Key words: biodiversity, flora, tree definition. Resumen. Las plantas arbóreas o arborescentes se definen aquí en un sentido amplio como plantas perennes que se pueden sostener por sí solas, con una altura total de al menos 5 m (sin considerar hojas o inflorescencias ascendentes) y con uno o varios tallos erectos de un diámetro de al menos 10 cm. -
1977-1978 Officefice of Institutional Researesearch F U N Iv Ers Itv O F M a S Sa C H U Se T Ts A...T a Rn He Rs T
Factbook University of Massachusetts Amherst 1977-1978 Officefice of Institutional ResearchResea www.umass.edu/oirw.umass.edu F_u_n_iv_ers_itv_o_f_M_a_s_sa_C_h_u_se_t_ts_a...t A_rn_he_rs_t_-... _ • • • Preface • This factbook has been compiled as a continued effort • (revived last year) to meet the many needs for a compendium of statistical information about the campus. The FACTBOOK • will allow its reade~s to have at hand in one volume the most current data available on most campus operations, as .' well as some historical data reaching as far back as 1863, the first year of operation of what is now the Amherst Campus of the University of Massachusetts. • I would like to take this opportunity to acknowledge Melissa Sherman" who typed theinany revisions_of this report, • and thank her for her valuable assistance and patience. • • /A. , ,IfII 7JlIA /I" c; . , • Alison A. Cox ' , Assistant for Institutional Studies .' January 1978 • About the Cover: Photographs i 11 us tra te the Amhers t Campus in four different sta of development. They are, clockwise from • upper left c. 1950, c. 1932, c. 1890, c. 1975. .' • - ; FFICEOFBUDGETINGAND INSTITUTIONAL STUDIES, WHITMORE ADMINISTRATION BUILDING, AMHERST, MASSACHUSETIS01002 (413) 545-2141 I UNIVERSITY or MASSACHUSETTS/AMHERST I 1977-1978 FACTBOOK I Co tents I. HISTORY I THE TOWN OF AMHERST. 2 I, HISTORICAL OVERVIEW OF THE UNIVERSITY. 3 ESTABLISHMENT OF SCHOOLS AND COLLEGES. 5 PAST PRESIDENTS AND CHANCELLO.RS. 6 I FIVE COLLEGE COOPERATION . 7 COOPERATIVE EXTENSION SERVICE. 9 I SUMMARY INFORMATION SHEET. 10 II. ORGANIZATION I CAMPUS ORGANIZATION AND ADMINISTRATION. 12 ORGANIZATIONAL CHART. 13 DESCRIPTION OF ORGANIZATIONAL UNITS. 14 • BoARD OF TRUSTEES. '. ; . 22 II ADMINISTRATIVE OFFICERS AND DIRECTORS. -
Bignoniaceae)
Systematic Botany (2007), 32(3): pp. 660–670 # Copyright 2007 by the American Society of Plant Taxonomists Taxonomic Revisions in the Polyphyletic Genus Tabebuia s. l. (Bignoniaceae) SUSAN O. GROSE1 and R. G. OLMSTEAD Department of Biology, University of Washington, Box 355325, Seattle, Washington 98195 U.S.A. 1Author for correspondence ([email protected]) Communicating Editor: James F. Smith ABSTRACT. Recent molecular studies have shown Tabebuia to be polyphyletic, thus necessitating taxonomic revision. These revisions are made here by resurrecting two genera to contain segregate clades of Tabebuia. Roseodendron Miranda consists of the two species with spathaceous calices of similar texture to the corolla. Handroanthus Mattos comprises the principally yellow flowered species with an indumentum of hairs covering the leaves and calyx. The species of Handroanthus are also characterized by having extremely dense wood containing copious quantities of lapachol. Tabebuia is restricted to those species with white to red or rarely yellow flowers and having an indumentum of stalked or sessile lepidote scales. The following new combinations are published: Handroanthus arianeae (A. H. Gentry) S. Grose, H. billbergii (Bur. & K. Schum). S. Grose subsp. billbergii, H. billbergii subsp. ampla (A. H. Gentry) S. Grose, H. botelhensis (A. H. Gentry) S. Grose, H. bureavii (Sandwith) S. Grose, H. catarinensis (A. H. Gentry) S. Grose, H. chrysanthus (Jacq.) S. Grose subsp. chrysanthus, H. chrysanthus subsp. meridionalis (A. H. Gentry) S. Grose, H. chrysanthus subsp. pluvicolus (A. H. Gentry) S. Grose, H. coralibe (Standl.) S. Grose, H. cristatus (A. H. Gentry) S. Grose, H. guayacan (Seemann) S. Grose, H. incanus (A. H.