An Introduction to the Main Forest Vegetation Types of Mainland SE Asia
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Chromosome Numbers in Gymnosperms - an Update
Rastogi and Ohri . Silvae Genetica (2020) 69, 13 - 19 13 Chromosome Numbers in Gymnosperms - An Update Shubhi Rastogi and Deepak Ohri Amity Institute of Biotechnology, Research Cell, Amity University Uttar Pradesh, Lucknow Campus, Malhaur (Near Railway Station), P.O. Chinhat, Luc know-226028 (U.P.) * Corresponding author: Deepak Ohri, E mail: [email protected], [email protected] Abstract still some controversy with regard to a monophyletic or para- phyletic origin of the gymnosperms (Hill 2005). Recently they The present report is based on a cytological data base on 614 have been classified into four subclasses Cycadidae, Ginkgoi- (56.0 %) of the total 1104 recognized species and 82 (90.0 %) of dae, Gnetidae and Pinidae under the class Equisetopsida the 88 recognized genera of gymnosperms. Family Cycada- (Chase and Reveal 2009) comprising 12 families and 83 genera ceae and many genera of Zamiaceae show intrageneric unifor- (Christenhusz et al. 2011) and 88 genera with 1104 recognized mity of somatic numbers, the genus Zamia is represented by a species according to the Plant List (www.theplantlist.org). The range of number from 2n=16-28. Ginkgo, Welwitschia and Gen- validity of accepted name of each taxa and the total number of tum show 2n=24, 2n=42, and 2n=44 respectively. Ephedra species in each genus has been checked from the Plant List shows a range of polyploidy from 2x-8x based on n=7. The (www.theplantlist.org). The chromosome numbers of 688 taxa family Pinaceae as a whole shows 2n=24except for Pseudolarix arranged according to the recent classification (Christenhusz and Pseudotsuga with 2n=44 and 2n=26 respectively. -
An Intergeneric Hybrid Between Franklinia Alatamaha and Gordonia
HORTSCIENCE 41(6):1386–1388. 2006. hybrids using F. alatamaha. Ackerman and Williams (1982) conducted extensive crosses · between F. alatamaha and Camellia L. spp. Gordlinia grandiflora (Theaceae): and produced two intergeneric hybrids, but their growth was weak and extremely slow. An Intergeneric Hybrid Between Ranney and colleagues (2003) reported suc- cessful hybridization between F. alatamaha Franklinia alatamaha and and Schima argentea Pritz. In 1974, Dr. Elwin Orton, Jr. successfully crossed G. lasianthus with F. alatamaha and produced 33 hybrids Gordonia lasianthus (Orton, 1977). Orton (1977) further reported Thomas G. Ranney1,2 that the seedlings grew vigorously during the Department of Horticultural Science, Mountain Horticultural Crops first growing season and that a number of them flowered the following year; however, Research and Extension Center, North Carolina State University, 455 all the plants eventually died, possibly be- Research Dr., Fletcher, NC 28732-9244 cause of some type of genetic incompatibility 1 or a pathogen (e.g., Phytophthora). Although Paul R. Fantz Orton’s report was somewhat discouraging, Department of Horticultural Science, Box 7603, North Carolina State hybridization between F. alatamaha and University, Raleigh, NC 27695-7609 G. lasianthus could potentially combine the cold hardiness of F. alatamaha with the ever- Additional index words. Gordonia alatamaha, Gordonia pubescens, distant hybridization, green foliage of G. lasianthus and broaden intergeneric hybridization, plant breeding, wide hybridization the genetic base for further breeding among Abstract. Franklinia alatamaha Bartr. ex Marshall represents a monotypic genus that was these genera. The objective of this report is originally discovered in Georgia, USA, but is now considered extinct in the wild and is to describe the history of and to validate new maintained only in cultivation. -
Differential Resistance of Gordonieae Trees to Phytophthora Cinnamomi
HORTSCIENCE 44(5):1484–1486. 2009. Successful crosses of Franklinia · Schima produced the intergeneric hybrid ·Schimlinia (Ranney et al., 2003) and crosses of Frank- Differential Resistance of Gordonieae linia · Gordonia produced the intergeneric hybrid ·Gordlinia (Ranney and Fantz, 2006). Trees to Phytophthora cinnamomi However, little is known about the resistance 1 2,5 3 of related species and potential parents to Elisabeth M. Meyer , Thomas G. Ranney , and Thomas A. Eaker P. cinnamomi. The objective of this study Department of Horticultural Science, Mountain Horticultural Crops was to evaluate a collection of species, Research and Extension Center, North Carolina State University, 455 clones, and hybrids of Franklinia, Gordonia, Research Drive, Fletcher, NC 28732 and Schima for resistance to P. cinnamomi. 4 Kelly Ivors Materials and Methods Department of Plant Pathology, Mountain Horticultural Crops Research and Extension Center, North Carolina State University, 455 Research Drive, During the summer of 2008, seven taxa of Gordonieae trees were inoculated with Mills River, NC 28759 P. cinnamomi at the North Carolina State Additional index words. host plant resistance, disease resistance, Abies fraseri, Franklinia University Mountain Horticultural Crops alatamaha, Gordonia lasianthus, ·Gordlinia grandiflora, ·Schimlinia floribunda, Schima Research Station in Mills River, NC. These taxa included F. alatamaha, G. lasianthus, S. wallichii, Schima khasiana, Phytophthora cinnamomi khasiana, S. wallichii, ·Gordlinia H2004- Abstract. Trees in the Theaceae tribe Gordonieae are valuable nursery crops, but some of 024-008, ·Schimlinia H2002-022-083, and these taxa are known to be highly susceptible to root rot caused by Phytophthora ·Schimlinia H2002-022-084. The plants of cinnamomi Rands. The objective of this study was to evaluate a collection of Gordonieae the selected Gordonieae taxa were 5-month- taxa for resistance to this pathogen. -
Palaeo Leaf Economics Reveal a Shift in Ecosystem Function Associated with the End-Triassic Mass Extinction Event
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/318473239 Palaeo leaf economics reveal a shift in ecosystem function associated with the end-Triassic mass extinction event Article in Nature Plants · July 2017 DOI: 10.1038/nplants.2017.104 CITATIONS READS 7 428 7 authors, including: Wuu Kuang Soh Karen Bacon University College Dublin University of Leeds 14 PUBLICATIONS 79 CITATIONS 15 PUBLICATIONS 167 CITATIONS SEE PROFILE SEE PROFILE Margret Steinthorsdottir Andrew C Parnell Swedish Museum of Natural History Maynooth University 30 PUBLICATIONS 408 CITATIONS 103 PUBLICATIONS 5,129 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Mid-Cretaceous south polar forests View project Response of pan-Arctic permafrost peatlands to rapid climate warming View project All content following this page was uploaded by Wuu Kuang Soh on 24 March 2019. The user has requested enhancement of the downloaded file. ARTICLES PUBLISHED: XX XX 2017 | VOLUME: 3 | ARTICLE NUMBER: 17104 Palaeo leaf economics reveal a shift in ecosystem function associated with the end-Triassic mass extinction event W. K. Soh1*,I.J.Wright2,K.L.Bacon3, T. I. Lenz2, M. Steinthorsdottir4,5,A.C.Parnell6 and J. C. McElwain1 Climate change is likely to have altered the ecological functioning of past ecosystems, and is likely to alter functioning in the future; however, the magnitude and direction of such changes are difficult to predict. Here we use a deep-time case study to evaluate the impact of a well-constrained CO2-induced global warming event on the ecological functioning of dominant plant communities. -
Gardenias, Magnolias and Oleanders
Gardenias, Magnolias and Oleanders Gardenia jasminoides is cultivated throughout the gardens of New Orleans as a sweet-scented flowering shrub. The Gardenia is a genus of 142 species of flowering plants in the coffee family, Rubiaceae, native to the tropical and subtropical regions of Africa, southern Asia, Australasia and Oceania. Several species occur on the island of Hawaii, and is known in to many people in New Orleans as the Cape jasmine. The fragrant and beautiful gardenia Since this species originated in warm humid tropical areas, it demands high humidity to thrive and bright (not direct) light. It flourishes in acidic soils with good drainage and thrives in Crescent City temperatures. Flowering is from about mid-spring to mid-summer, with May the predominant month. The stunningly beautiful shrub with the fragrant white flowers did not derive its name from “the garden”, however. It all began in Charleston, South Carolina, where there lived a Scottish-born botanist named Dr. Alexander Garden (1730 -1791). He was a member of several learned societies and was a fellow of the Royal Society in London. He collected all manner of flora and fauna, which he packed up and sent to London zoologist John Ellis and famous Swedish naturalist Carl Linnaeus. He bundled up and sent them various magnolias and some Gordonia specimens, but the plant that bears his name had nothing to do with his particular efforts. It wasn’t even American. Linnaeus was strongly persuaded by Ellis to name something after Garden, so the Gardenia became the name for the Cape jasmine, also known as Cape jessamine. -
Pan-Neotropical Genus Venada (Hesperiidae: Pyrginae) Is Not Monotypic: Four New Species Occur on One Volcano in the Area De Conservación Guanacaste, Costa Rica
VOLUME 59, NUMBER 1 19 Journal of the Lepidopterists’ Society 59(1), 2005, 19–34 PAN-NEOTROPICAL GENUS VENADA (HESPERIIDAE: PYRGINAE) IS NOT MONOTYPIC: FOUR NEW SPECIES OCCUR ON ONE VOLCANO IN THE AREA DE CONSERVACIÓN GUANACASTE, COSTA RICA JOHN M. BURNS Department of Entomology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, MRC 127, room E-515, Washington, DC 20013-7012, USA email: [email protected] AND DANIEL H. JANZEN Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA email: [email protected] ABSTRACT. Between 1995 and 2004, as part of an ongoing macrolepidopteran inventory of the Area de Conservación Gua- nacaste (ACG), Costa Rica, 327 adults of the hesperiid genus Venada were reared from 636 wild-caught caterpillars and pupae. Al- though Venada was thought to be monotypic over its wide range (Mexico to Bolivia), there are four new species on Volcán Cacao in the ACG: Venada nevada, V. daneva, V. cacao, and V. naranja — all described by Burns, using characters of adult facies, male and female genitalia, caterpillar color pattern, and ecologic distribution. These skippers inhabit both rain and cloud forest, but not dry forest. The caterpillars feed on mature leaves of saplings in five genera of Lauraceae: Beilschmiedia, Licaria, Nectandra, Ocotea, and Persea. Caterpillars of Ridens also eat plants in the family Lauraceae, and Ridens and Venada may be closely related. Additional key words: caterpillars, foodplants (Lauraceae), genitalia (male and female), parasitoids, taxonomy, variation. There are far more species of skipper butterflies in Oddly enough, adults of Venada and males of those the neotropics than current literature suggests. -
Downloaded from Brill.Com10/07/2021 06:20:25PM Via Free Access 248 IAWA Journal, Vol
IAWA Journal, Vol. 18 (3),1997: 247-259 WOOD ANATOMY OF SOME ANAUERIA AND BEILSCHMIEDIA SPECIES (LAURACEAE) 1 by Catia H. Callado & Cecilia G. Costa Anatomy Sector, Rio de Janeiro Botanical Garden, Rua Jardim Botänico, 1008 Jardim Botänico, Rio de Janeiro, RJ / CEP 22400-000, Brazil SUMMARY The wood anatomy of the species Anaueria brasiliensis Kosterm., Beilschmiedia emarginata (Meissn.) Kosterm., B. rigida (Mez) Kosterm. and B. taubertiana (Schw. et Mez) Kosterm. (Lauraceae) is described. The taxonomy and ecology of these species, important components of the Amazonian forest or Atlantic forest of southeastern Brazil, are discussed as related to wood anatomy. The main anatomical differences are: presence, type, arrangement and location of inorganic inclusions and secretory cells, and the arrangement of the axial parenchyma. Key words: Wood anatomy,Anaueria. Beilschmiedia, Lauraceae, taxon omy, ecology. INTRODUCTION Anaueria Kosterm. is amonotypic genus, with the single speciesA. brasiliensis Kosterm. (Kostermans 1938; Van der Werff 1991).1t was once (1957) included in Beilschmiedia by Kostermans, but is anatomically closer to Mezilaurus Taubert (Rohwer 1993). The genus Beilschmiedia Nees consists of about 250 species and is found through out the tropics (Rohwer 1993); six species occur in the Atlantic forest of southeastern Brazil: Beilschmiedia angustifolia. B. emarginata. B. fluminensis. B. rigida. B. stricta and B. taubertiana. Three of these species were examined in this study. They were selected on the basis of availability of botanical material, whether fresh from the forest or through the exchange of wood sampies from collections in Brazil. Beilschmiedia rigida (Mez) Kosterm. and B. taubertiana (Schw. et Mez) Kosterm. are among the most important tree species at the Macae de Cima Munü;:ipal Ecological Reserve and the Parafso State Ecological Station (Relat6rio Tecnico do Programa Mata Atläntica do Jardim Botänico do Rio de Janeiro 1990). -
Two New Species of Beilschmiedia (Lauraceae) from Borneo
BLUMEA 51: 89–94 Published on 10 May 2006 http://dx.doi.org/10.3767/000651906X622355 TWO NEW SPECIES OF BEILSCHMIEDIA (LAURACEAE) FROM BORNEO SACHIKO NISHIDA The Nagoya University Museum, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan e-mail: [email protected] SUMMARY Two new species of Beilschmiedia Nees (Lauraceae) from Borneo, B. crassa and B. microcarpa, are described and illustrated. Beilschmiedia crassa is distinguished from the other Bornean Beilschmiedia species by its thick and strongly coriaceous, narrowly ovate leaves and flowers with a thick receptacle. Beilschmiedia microcarpa is distinct in the combination of the following characters: its glabrous narrow buds, opposite, elliptic, chartaceous leaves with raised veins on the upper surface, flowers with short filaments, and relatively small fruits. Key words: Beilschmiedia, Lauraceae, Borneo, new species. INTRODUCTION Beilschmiedia Nees is one of the larger genera of Lauraceae (Nishida, 2001) and includes about 250 species distributed mainly in the paleotropics (Van der Werff, 2001). It is usually distinguished from the other Lauraceae genera by its paniculate or racemose inflorescences not strictly cymose at the terminal division, bisexual and trimerous flow- ers with six equal to subequal tepals, six to nine fertile stamens with 2-celled anthers, and fruits lacking cupules (Nishida, 1999). Revisional studies have been made for the genus in several regions: in China and Indochina (Liou, 1934), Taiwan (Liao, 1995), Congo and tropical Africa (Robyns & Wilczek, 1949), Cameroon (Fouilloy, 1974), Madagascar (Van der Werff, 2003), the neotropics (Kostermans, 1938; Nishida, 1999), New Zealand (Wright, 1984) and Australia (Hyland, 1989). However, the genus has still to be revised for the Flora Malesiana region, except for the fact that Kochummen (1989) treated the genus for the Tree Flora of Peninsular Malaysia. -
Vietnamese Conifers and Some Problems of Their Sustainable Utilization Ke Loc Et Al
Vietnamese conifers and some problems of their sustainable utilization Ke Loc et al. Vietnamese conifers and some problems of their sustainable utilization Phan Ke Loc 1, 2, Nguyen Tien Hiep 2, Nguyen Duc To Luu 3, Philip Ian Thomas 4, Aljos Farjon 5, L.V. Averyanov 6, J.C. Regalado, Jr. 7, Nguyen Sinh Khang 2, Georgina Magin 8, Paul Mathew 8, Sara Oldfield 9, Sheelagh O’Reilly 8, Thomas Osborn 10, Steven Swan 8 and To Van Thao 2 1 University of Natural Science, Vietnam National University, Hanoi; 2 Institute of Ecology and Biological Resources; 3 Vietnam Central Forest Seed Company; 4 Royal Botanic Garden Edinburgh; 5 Royal Botanic Gardens, Kew; 6 Komarov Botanical Institute; 7 Missouri Botanical Garden; 8 Fauna & Flora International; 9 Global Trees Campaign; 10 Independent Consultant Introduction Vietnam is now recognized as one of the top ten global conifer conservation ‘hotspots’, as defined by the Conifer Specialist Group of the World Conservation Union (IUCN). Vietnam’s conifer flora has approximately 34 species that are indigenous to the country, making up about 5% of conifers known worldwide. Although conifers represent only less than 0.3% of the total number of higher vascular plant species of Vietnam, they are of great ecological, cultural and economic importance. Most conifer wood is prized for its high value in house construction, furniture making, etc. The decline of conifer populations in Vietnam has caused serious concern among scientists. Threats to conifer species are substantial and varied, ranging from logging (both commercial and subsistence), land clearing for agriculture, and forest fire. Over the past twelve years (1995-2006), Vietnam Botanical Conservation Program (VBCP), a scientific cooperation between the Missouri Botanical Garden in Saint Louis and the Institute of Ecology and Biological Resources in Hanoi, has conducted various studies on this important group of plants in order to gather baseline information necessary to make sound recommendations for their conservation and sustainable use. -
Endiandric Acid Derivatives and Other Constituents of Plants from the Genera Beilschmiedia and Endiandra (Lauraceae)
Biomolecules 2015, 5, 910-942; doi:10.3390/biom5020910 OPEN ACCESS biomolecules ISSN 2218-273X www.mdpi.com/journal/biomolecules/ Review Endiandric Acid Derivatives and Other Constituents of Plants from the Genera Beilschmiedia and Endiandra (Lauraceae) Bruno Ndjakou Lenta 1,2,*, Jean Rodolphe Chouna 3, Pepin Alango Nkeng-Efouet 3 and Norbert Sewald 2 1 Department of Chemistry, Higher Teacher Training College, University of Yaoundé 1, P.O. Box 47, Yaoundé, Cameroon 2 Organic and Bioorganic Chemistry, Chemistry Department, Bielefeld University, P.O. Box 100131, 33501 Bielefeld, Germany; E-Mail: [email protected] 3 Department of Chemistry, University of Dschang, P.O. Box 67, Dschang, Cameroon; E-Mails:[email protected] (J.R.C.); [email protected] (P.A.N.-E.) * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +2376-7509-7561. Academic Editor: Jürg Bähler Received: 3 March 2015 / Accepted: 6 May 2015 / Published: 14 May 2015 Abstract: Plants of the Lauraceae family are widely used in traditional medicine and are sources of various classes of secondary metabolites. Two genera of this family, Beilschmiedia and Endiandra, have been the subject of numerous investigations over the past decades because of their application in traditional medicine. They are the only source of bioactive endiandric acid derivatives. Noteworthy is that their biosynthesis contains two consecutive non-enzymatic electrocyclic reactions. Several interesting biological activities for this specific class of secondary metabolites and other constituents of the two genera have been reported, including antimicrobial, enzymes inhibitory and cytotoxic properties. This review compiles information on the structures of the compounds described between January 1960 and March 2015, their biological activities and information on endiandric acid biosynthesis, with 104 references being cited. -
© 2008 Stephanie Volmer ALL RIGHTS RESERVED
© 2008 Stephanie Volmer ALL RIGHTS RESERVED PLANTING A NEW WORLD: LETTERS AND LANGUAGES OF TRANSATLANTIC BOTANICAL EXCHANGE, 1733-1777 By STEPHANIE VOLMER A Dissertation submitted to the Graduate School-New Brunswick Rutgers, The State University of New Jersey in partial fulfillment of the requirements for the degree of Doctor of Philosophy Graduate Program in Literatures in English written under the direction of Myra Jehlen and approved by ______________________________ ______________________________ ______________________________ ______________________________ New Brunswick, New Jersey May 2008 ABSTRACT OF THE DISSERTATION Planting a New World: Letters and Languages of Transatlantic Botanical Exchange, 1733-1777 by STEPHANIE VOLMER Dissertation Director: Myra Jehlen My dissertation describes an important change in the accepted understanding and imagination of nature. This change took place over the course of the eighteenth century, when nature, from being conceived of as a settled state subject to cyclical change, came to be seen as mobile and mutable. The sense of a mobile, mutable nature--the dissertation's central trope--arose from the experience of travel and discovery, which was accompanied from the first by a vigorous process of transplantation. Plants and seeds were carried across oceans, having been dug up on one continent to be replanted often in another. From being static and predictable, plant life therefore became, for scholars and poets alike, dynamic, mutable, and adaptable. I focus on the writings of a small group of men in the Anglo-American world, including John and William Bartram, Peter Collinson, Alexander Garden, John Ellis, and Carl Linnaeus, who were engaged in the work of transporting, planting, writing about, and classifying botanical objects. -
Searching for Franklinia the Lost Flower of the Altamaha
“In May last, I set on a botanic tour to Augusta and to Savannah town and continuing southwest to the river Altamaha in Georgia,” writes Moses Marshall in his account of his southeast Georgia expedition in 1790. “ I here found the Franklinana.” Searching for Franklinia The Lost Flower of the Altamaha R OBERT L ATIMER H URST the “Lost Gordonia,” has been classified two botanists who initiated this plant’s as “America’s first rare plant,” and it has puzzling story nearly 250 years ago. arshall’s sighting was the last become legendary in the way of the John Bartram and his son, William, recorded observation of the demise or near demise of the passenger first discovered “a modest grove of this MFranklinia plant in its native pigeon, ivory-billed woodpecker and unusually beautiful small tree in Georgia habitat; henceforth, to the present day, American chestnut. in 1765.” The small tree was growing the only viewing of the Franklinia, In America’s “First” Rare Plant—The wild and in profusion in the immense named in honor of Benjamin Franklin, Franklin Tree, Lucy Rowland referred to bottomlands along the Altamaha River in has been at arboretums and botanical the disappearing act by this member of southeast Georgia. John Bartram, a char- ter member of the American Philosophical Society, was a self-edu- cated man. A liberal Quaker and an active farmer, he had an “impelling scientific curiosity” to explore America’s virgin forests, almost at odds some- times with his strict reli- gious background. Bartram began gath- ering seeds and plants and found a lucrative market selling them to wealthy collectors in Europe.