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Introductory Grass Identification Workshop University of Houston Coastal Center 23 September 2017
Broadleaf Woodoats (Chasmanthium latifolia) Introductory Grass Identification Workshop University of Houston Coastal Center 23 September 2017 1 Introduction This 5 hour workshop is an introduction to the identification of grasses using hands- on dissection of diverse species found within the Texas middle Gulf Coast region (although most have a distribution well into the state and beyond). By the allotted time period the student should have acquired enough knowledge to identify most grass species in Texas to at least the genus level. For the sake of brevity grass physiology and reproduction will not be discussed. Materials provided: Dried specimens of grass species for each student to dissect Jewelry loupe 30x pocket glass magnifier Battery-powered, flexible USB light Dissecting tweezer and needle Rigid white paper background Handout: - Grass Plant Morphology - Types of Grass Inflorescences - Taxonomic description and habitat of each dissected species. - Key to all grass species of Texas - References - Glossary Itinerary (subject to change) 0900: Introduction and house keeping 0905: Structure of the course 0910: Identification and use of grass dissection tools 0915- 1145: Basic structure of the grass Identification terms Dissection of grass samples 1145 – 1230: Lunch 1230 - 1345: Field trip of area and collection by each student of one fresh grass species to identify back in the classroom. 1345 - 1400: Conclusion and discussion 2 Grass Structure spikelet pedicel inflorescence rachis culm collar internode ------ leaf blade leaf sheath node crown fibrous roots 3 Grass shoot. The above ground structure of the grass. Root. The below ground portion of the main axis of the grass, without leaves, nodes or internodes, and absorbing water and nutrients from the soil. -
Tripsacum Dactyloides Scientific Name Tripsacum Dactyloides (L.) L
Tropical Forages Tripsacum dactyloides Scientific name Tripsacum dactyloides (L.) L. Subordinate taxa: Perennial clump grass, Texas, USA Tripsacum dactyloides (L.) L. var. dactyloides Tiller base with short, knotty rhizome and developing prop roots (ILRI 15488) Tripsacum dactyloides (L.) L. var. hispidum (Hitchc.) de Wet & J.R. Harlan Tripsacum dactyloides (L.) L. var. meridonale de Wet & Timothy Tripsacum dactyloides (L.) L. var. mexicanum de Wet & J.R. Harlan Synonyms Single raceme with white stigmas emerging from ♀ spikelets at base of var. dactyloides: basionym Coix dactyloides L.; raceme; purplish stems Tripsacum dactyloides (L.) L. var. occidentale H.C. Single racemes and subdigitate panicle; Cutler & E.S. Anderson anthers emerging from ♂ apical flowers, stigmas on ♀ basal flowers already var. hispidum (Hitchc.) de Wet & J.R. Harlan: senescent Basionym: Tripsacum dactyloides subsp. hispidum Hitchc. Family/tribe Family: Poaceae (alt. Gramineae) subfamily: Panicoideae tribe: Andropogoneae subtribe: Tripsacinae. Morphological description Seed unit with caryopsis Seed units An extremely variable perennial clump grass, with short, fibrous, knotty rhizomes and deep hollow roots. Culms 1‒2.5 (‒4 m) tall, and 3‒5 cm thick at base, branching, prop-rooting from lower nodes; stems purplish, glabrous. Leaf sheath glabrous, often purplish; leaf-blade lanceolate-acuminate, to 30‒75 (‒1.5) cm long and 9‒35 (‒45) mm wide, mostly glabrous, sometimes hairy at the base of the upper blade surface; prominent midrib; Seed production area, Knox margin scabrous; ligule a fringed membrane, 1‒1.5 mm County, Texas, USA (PI 434493) long. Inflorescence 10‒20 (‒30) cm long, terminal and axillary, commonly a single raceme, or subdigitate panicle comprising 2‒3 (‒6) racemes of usually A. -
Vascular Plant Community Composition from the Campos Rupestres of the Itacolomi State Park, Brazil
Biodiversity Data Journal 3: e4507 doi: 10.3897/BDJ.3.e4507 Data Paper Vascular plant community composition from the campos rupestres of the Itacolomi State Park, Brazil Markus Gastauer‡‡, Werner Leyh , Angela S. Miazaki§, João A.A. Meira-Neto| ‡ Federal University of Viçosa, Frutal, Brazil § Centro de Ciências Ambientais Floresta-Escola, Frutal, Brazil | Federal University of Viçosa, Viçosa, Brazil Corresponding author: Markus Gastauer ([email protected]) Academic editor: Luis Cayuela Received: 14 Jan 2015 | Accepted: 19 Feb 2015 | Published: 27 Feb 2015 Citation: Gastauer M, Leyh W, Miazaki A, Meira-Neto J (2015) Vascular plant community composition from the campos rupestres of the Itacolomi State Park, Brazil. Biodiversity Data Journal 3: e4507. doi: 10.3897/ BDJ.3.e4507 Abstract Campos rupestres are rare and endangered ecosystems that accommodate a species-rich flora with a high degree of endemism. Here, we make available a dataset from phytosociological surveys carried out in the Itacolomi State Park, Minas Gerais, southeastern Brazil. All species in a total of 30 plots of 10 x 10 m from two study sites were sampled. Their cardinality, a combination of cover and abundance, was estimated. Altogether, we registered occurrences from 161 different taxa from 114 genera and 47 families. The families with the most species were Poaceae and Asteraceae, followed by Cyperaceae. Abiotic descriptions, including soil properties such as type, acidity, nutrient or aluminum availability, cation exchange capacity, and saturation of bases, as well as the percentage of rocky outcrops and the mean inclination for each plot, are given. This dataset provides unique insights into the campo rupestre vegetation, its specific environment and the distribution of its diversity. -
Information Sheet on Ramsar Wetlands (RIS) – 2009-2012 Version Available for Download From
Information Sheet on Ramsar Wetlands (RIS) – 2009-2012 version Available for download from http://www.ramsar.org/ris/key_ris_index.htm. Categories approved by Recommendation 4.7 (1990), as amended by Resolution VIII.13 of the 8th Conference of the Contracting Parties (2002) and Resolutions IX.1 Annex B, IX.6, IX.21 and IX. 22 of the 9th Conference of the Contracting Parties (2005). Notes for compilers: 1. The RIS should be completed in accordance with the attached Explanatory Notes and Guidelines for completing the Information Sheet on Ramsar Wetlands. Compilers are strongly advised to read this guidance before filling in the RIS. 2. Further information and guidance in support of Ramsar site designations are provided in the Strategic Framework and guidelines for the future development of the List of Wetlands of International Importance (Ramsar Wise Use Handbook 14, 3rd edition). A 4th edition of the Handbook is in preparation and will be available in 2009. 3. Once completed, the RIS (and accompanying map(s)) should be submitted to the Ramsar Secretariat. Compilers should provide an electronic (MS Word) copy of the RIS and, where possible, digital copies of all maps. 1. Name and address of the compiler of this form: FOR OFFICE USE ONLY. DD MM YY Beatriz de Aquino Ribeiro - Bióloga - Analista Ambiental / [email protected], (95) Designation date Site Reference Number 99136-0940. Antonio Lisboa - Geógrafo - MSc. Biogeografia - Analista Ambiental / [email protected], (95) 99137-1192. Instituto Chico Mendes de Conservação da Biodiversidade - ICMBio Rua Alfredo Cruz, 283, Centro, Boa Vista -RR. CEP: 69.301-140 2. -
Copyright by Stephannie Coeto Coix 2018
Copyright by Stephannie Coeto Coix 2018 The Thesis committee for Stephannie Coeto Coix Certifies that this is the approved version of the following thesis: Alexandre Testanegra: An Ottoman Spy in the New World? APPROVED BY SUPERVISING COMMITTEE: ________________________________ Jorge Canizares, Supervisor ________________________________ Mariam Bodian Alexandre Testanegra: An Ottoman Spy in the New World? by Stephannie Coeto Coix Thesis Presented to the Faculty of the Graduate School of the University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Master of Arts The University of Texas at Austin May, 2018 Dedicado a los dos seres más importantes de mi vida: Abisai y Elena Acknowledgments I am really thankful to Dr. Jorge Cañizares for all the support, guidance, and faith in my project. I am very proud of being under your supervision. I am also thankful to Dr. Mariam Bodian for the analytical assistance. Your questions and comments about the interpretation of the file, helped me to find its unsuspected scope. Thank you also to Bradley Dixon, Kristie Flannery, Adrian Masters, and Gary Dunbar for your generous comments and corrections in the reviewing process. Más que a nadie, gracias a mi esposo Abisai Pérez. El amor y la admiración que te profeso no pueden expresarse con palabras. Sólo puedo decirte gracias por apoyarme y acompañarme a cada momento de la vida. Por ser mi porrista incondicional, editor y mi modelo a seguir. Gracias a mi mamaita, Elena Coix. Tu amor, sabiduría y ejemplo me han dado todas las cosas maravillosas que tengo hoy en la vida. Estar a la altura de la gran mujer y madre que eres, ha sido y será siempre mi mayor motivación en la vida. -
Poaceae: Panicoideae: Paniceae) Silvia S
Aliso: A Journal of Systematic and Evolutionary Botany Volume 23 | Issue 1 Article 41 2007 Phylogenetic Relationships of the Decumbentes Group of Paspalum, Thrasya, and Thrasyopsis (Poaceae: Panicoideae: Paniceae) Silvia S. Denham Instituto de Botánica Darwinion, San Isidro, Argentina Fernando O. Zuloaga Instituto de Botánica Darwinion, San Isidro, Argentina Follow this and additional works at: http://scholarship.claremont.edu/aliso Part of the Botany Commons, and the Ecology and Evolutionary Biology Commons Recommended Citation Denham, Silvia S. and Zuloaga, Fernando O. (2007) "Phylogenetic Relationships of the Decumbentes Group of Paspalum, Thrasya, and Thrasyopsis (Poaceae: Panicoideae: Paniceae)," Aliso: A Journal of Systematic and Evolutionary Botany: Vol. 23: Iss. 1, Article 41. Available at: http://scholarship.claremont.edu/aliso/vol23/iss1/41 Aliso 23, pp. 545–562 ᭧ 2007, Rancho Santa Ana Botanic Garden PHYLOGENETIC RELATIONSHIPS OF THE DECUMBENTES GROUP OF PASPALUM, THRASYA, AND THRASYOPSIS (POACEAE: PANICOIDEAE: PANICEAE) SILVIA S. DENHAM1 AND FERNANDO O. ZULOAGA Instituto de Bota´nica Darwinion, Labarde´n 200, Casilla de Correo 22, San Isidro, Buenos Aires B1642HYD, Argentina 1Corresponding author ([email protected]) ABSTRACT Paspalum (Poaceae: Panicoideae: Paniceae) includes 330 species distributed mainly in tropical and subtropical regions of America. Due to the large number of species and convergence in many char- acters, an adequate infrageneric classification is still needed. Studies on Paniceae based on molecular and morphological data have suggested that Paspalum is paraphyletic, including the genus Thrasya, but none of these analyses have included a representative sample of these two genera. In this study, phylogenetic relationships among the informal group Decumbentes of Paspalum, plus subgenera and other informal groups, and the genera Thrasya and Thrasyopsis were estimated. -
Trajectories of Rice-Based Farming Systems
TRAJECTORIES OF RICE-BASED FARMING SYSTEMS IN MAINLAND SOUTHEAST ASIA R. A. CRAMB (EDITOR) TRAJECTORIES OF RICE-BASED FARMING SYSTEMS 1 IN MAINLAND SOUTHEAST ASIA 2 TRAJECTORIES OF RICE-BASED FARMING SYSTEMS IN MAINLAND SOUTHEAST ASIA R. A. CRAMB (EDITOR) 2015 The Australian Centre for International Agricultural Research (ACIAR) was established in June 1982 by an Act of the Australian Parliament. ACIAR operates as part of Australia’s international development cooperation program, with a mission to achieve more productive and sustainable agricultural systems, for the benefit of developing countries and Australia. It commissions collaborative research between Australian and developing- country researchers in areas where Australia has special research competence. It also administers Australia’s contribution to the International Agricultural Research Centres. Where trade names are used this constitutes neither endorsement of nor discrimination against any product by ACIAR. ACIAR MONOGRAPH SERIES This series contains the results of original research supported by ACIAR, or material deemed relevant to ACIAR’s research and development objectives. The series is distributed internationally, with an emphasis on developing countries. © Australian Centre for International Agricultural Research (ACIAR) 2015 This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from ACIAR, GPO Box 1571, Canberra ACT 2601, Australia, [email protected] R. A. Cramb, G. D. Gray, M. Gummert, S. M. Haefele, R. D. B. Lefroy, J. C. Newby, W. Stür, and P. Warr,. TRAJECTORIES OF RICE-BASED FARMING SYSTEMS in Mainland Southeast Asia. Australian Centre for International Agricultural Research, 2015. -
Investigation of Mitochondrial-Derived Plastome Sequences in the Paspalum Lineage (Panicoideae; Poaceae) Sean V
Burke et al. BMC Plant Biology (2018) 18:152 https://doi.org/10.1186/s12870-018-1379-1 RESEARCH ARTICLE Open Access Investigation of mitochondrial-derived plastome sequences in the Paspalum lineage (Panicoideae; Poaceae) Sean V. Burke1* , Mark C. Ungerer2 and Melvin R. Duvall1 Abstract Background: The grass family (Poaceae), ca. 12,075 species, is a focal point of many recent studies that aim to use complete plastomes to reveal and strengthen relationships within the family. The use of Next Generation Sequencing technology has revealed intricate details in many Poaceae plastomes; specifically the trnI - trnL intergenic spacer region. This study investigates this region and the putative mitochondrial inserts within it in complete plastomes of Paspalum and other Poaceae. Results: Nine newly sequenced plastomes, seven of which contain an insert within the trnI - trnL intergenic spacer, were combined into plastome phylogenomic and divergence date analyses with 52 other species. A robust Paspalum topology was recovered, originating at 10.6 Ma, with the insert arising at 8.7 Ma. The alignment of the insert across Paspalum reveals 21 subregions with pairwise homology in 19. In an analysis of emergent self- organizing maps of tetranucleotide frequencies, the Paspalum insert grouped with mitochondrial DNA. Conclusions: A hypothetical ancestral insert, 17,685 bp in size, was found in the trnI - trnL intergenic spacer for the Paspalum lineage. A different insert, 2808 bp, was found in the same region for Paraneurachne muelleri. Seven different intrastrand deletion events were found within the Paspalum lineage, suggesting selective pressures to remove large portions of noncoding DNA. Finally, a tetranucleotide frequency analysis was used to determine that the origin of the insert in the Paspalum lineage is mitochondrial DNA. -
Evolution of Grasses and Grasslands in South America
TAXON 24(I): 53-66. FEBRUARY 1975 EVOLUTION OF GRASSESAND GRASSLANDS IN SOUTH AMERICA Arturo Burkart* Summary This is a discussion of the South American grasslands from the standpoint of their evolution and composition. The tribes are considered in relation to climate, and grasses are classified as mega-, meso-, or microthermic with respect to their temperature requirements. The principal grassland regions are three: (A) Tropical and Subtropical, which include the Llanos of the Orinoco River system and the Campos Cerrados of Central Brazil; (B) Temperate, including the Pampa of Argentina and the Campos of Uruguay; and (C) Cold Country Grasslands, which are the Steppes of the high Andes and Patagonia, and also the Pairamos of Colombia and Ecuador. Some attention is given to the floristic composition of each of these regions. The subject of endemism is dealt with, as well as the problem of disjunct distribution. Included is a discussion of changes brought about by agriculture and ranching in historic times, and what may be expected in the future. INTRODUCTION The Gramineae, with about 6oo genera and some 6ooo species, is one of the largest families of flowering plants. It is a truly cosmopolitan group, and remarkable because of the capacity of its members to form the domi- nant vegetation over large areas of the earth's surface. The terms steppes, savannas, prairies, pusztas, campos or pampas all refer to vegetation types in which grasses are dominant. To quote Ronald Good (1953; p. 53) "Pride of place must certainly go to the Gramineae . ., the great family ... Not only do the grasses reach to the furthest land in the north and to the borders of Antarctica in the south, but their degree of distribution is usually particularly complete and continuous. -
The C4 Plant Lineages of Planet Earth
Journal of Experimental Botany, Vol. 62, No. 9, pp. 3155–3169, 2011 doi:10.1093/jxb/err048 Advance Access publication 16 March, 2011 REVIEW PAPER The C4 plant lineages of planet Earth Rowan F. Sage1,*, Pascal-Antoine Christin2 and Erika J. Edwards2 1 Department of Ecology and Evolutionary Biology, The University of Toronto, 25 Willcocks Street, Toronto, Ontario M5S3B2 Canada 2 Department of Ecology and Evolutionary Biology, Brown University, 80 Waterman St., Providence, RI 02912, USA * To whom correspondence should be addressed. E-mail: [email protected] Received 30 November 2010; Revised 1 February 2011; Accepted 2 February 2011 Abstract Using isotopic screens, phylogenetic assessments, and 45 years of physiological data, it is now possible to identify most of the evolutionary lineages expressing the C4 photosynthetic pathway. Here, 62 recognizable lineages of C4 photosynthesis are listed. Thirty-six lineages (60%) occur in the eudicots. Monocots account for 26 lineages, with a Downloaded from minimum of 18 lineages being present in the grass family and six in the sedge family. Species exhibiting the C3–C4 intermediate type of photosynthesis correspond to 21 lineages. Of these, 9 are not immediately associated with any C4 lineage, indicating that they did not share common C3–C4 ancestors with C4 species and are instead an independent line. The geographic centre of origin for 47 of the lineages could be estimated. These centres tend to jxb.oxfordjournals.org cluster in areas corresponding to what are now arid to semi-arid regions of southwestern North America, south- central South America, central Asia, northeastern and southern Africa, and inland Australia. -
E Edulis ATION SOIL SEED BANK in PANTANAL
Oecologia Australis 23(4):891-903, 2019 https://doi.org/10.4257/oeco.2019.2304.13 GEOGRAPHIC DISTRIBUTION OF THE THREATENED PALM Euterpe edulis Mart. IN THE ATLANTIC FOREST: IMPLICATIONS FOR CONSERVATION SOIL SEED BANK IN PANTANAL RIPARIAN FOREST: PERSISTENCE, ABUNDANCE, FUNCTIONAL DIVERSITY AND COMPOSITION Aline Cavalcante de Souza1* & Jayme Augusto Prevedello1 Evaldo Benedito de Souza1*, Geraldo Alves Damasceno Junior2 & Arnildo Pott2 1 Universidade do Estado do Rio de Janeiro, Instituto de Biologia, Departamento de Ecologia, Laboratório de Ecologia de Paisagens, Rua São Francisco Xavier 524, Maracanã, CEP 20550-900, Rio de Janeiro, RJ, Brazil. 1 Universidade Federal de Mato Grosso do Sul, Programa de Pós-Graduação em Ecologia e Conservação, Av. Costa e Silva, s/n, Bairro Universitário, CEP 79070-900, Campo Grande, MS, Brazil. E-mails: [email protected] (*corresponding author); [email protected] 2 Universidade Federal de Mato Grosso do Sul, Programa de Pós-Graduação em Biologia Vegetal, Av. Costa e Silva, s/n, Abstract: The combination of species distribution models based on climatic variables, with spatially explicit Bairro Universitário, CEP 79070-900, Campo Grande, MS, Brazil. analyses of habitat loss, may produce valuable assessments of current species distribution in highly disturbed E-mails: [email protected] (*corresponding author); [email protected]; [email protected] ecosystems. Here, we estimated the potential geographic distribution of the threatened palm Euterpe edulis Mart. (Arecaceae), an ecologically and economically important species inhabiting the Atlantic Forest Abstract: The soil seed bank is a regeneration strategy for most plant species in wetlands such as the biodiversity hotspot. This palm is shade-tolerant, and its populations are restricted to the interior of forest Pantanal. -
Assembling the Tree of the Monocotyledons: Plastome Sequence Phylogeny and Evolution of Poales Author(S) :Thomas J
Assembling the Tree of the Monocotyledons: Plastome Sequence Phylogeny and Evolution of Poales Author(s) :Thomas J. Givnish, Mercedes Ames, Joel R. McNeal, Michael R. McKain, P. Roxanne Steele, Claude W. dePamphilis, Sean W. Graham, J. Chris Pires, Dennis W. Stevenson, Wendy B. Zomlefer, Barbara G. Briggs, Melvin R. Duvall, Michael J. Moore, J. Michael Heaney, Douglas E. Soltis, Pamela S. Soltis, Kevin Thiele, and James H. Leebens-Mack Source: Annals of the Missouri Botanical Garden, 97(4):584-616. 2010. Published By: Missouri Botanical Garden DOI: URL: http://www.bioone.org/doi/full/10.3417/2010023 BioOne (www.bioone.org) is a a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/ page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non- commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. ASSEMBLING THE TREE OF THE Thomas J. Givnish,2 Mercedes Ames,2 Joel R. MONOCOTYLEDONS: PLASTOME McNeal,3 Michael R. McKain,3 P. Roxanne Steele,4 Claude W. dePamphilis,5 Sean W.