Volume 9, Number 1, March 1987
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A Taxonomic Revision of Rhododendron L. Section Pentanthera G
A TAXONOMIC REVISION OF RHODODENDRON L. SECTION PENTANTHERA G. DON (ERICACEAE) BY KATHLEEN ANNE KRON A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY UNIVERSITY OF FLORIDA 1987 , ACKNOWLEDGMENTS I gratefully acknowledge the supervision and encouragement given to me by Dr. Walter S. Judd. I thoroughly enjoyed my work under his direction. I would also like to thank the members of my advisory committee, Dr. Bijan Dehgan, Dr. Dana G. Griffin, III, Dr. James W. Kimbrough, Dr. Jonathon Reiskind, Dr. William Louis Stern, and Dr. Norris H. Williams for their critical comments and suggestions. The National Science Foundation generously supported this project in the form of a Doctoral Dissertation Improvement Grant;* field work in 1985 was supported by a grant from the Highlands Biological Station, Highlands, North Carolina. I thank the curators of the following herbaria for the loan of their material: A, AUA, BHA, DUKE, E, FSU, GA, GH, ISTE, JEPS , KW, KY, LAF, LE NCSC, NCU, NLU NO, OSC, PE, PH, LSU , M, MAK, MOAR, NA, , RSA/POM, SMU, SZ, TENN, TEX, TI, UARK, UC, UNA, USF, VDB, VPI, W, WA, WVA. My appreciation also is offered to the illustrators, Gerald Masters, Elizabeth Hall, Rosa Lee, Lisa Modola, and Virginia Tomat. I thank Dr. R. Howard * BSR-8601236 ii Berg for the scanning electron micrographs. Mr. Bart Schutzman graciously made available his computer program to plot the results of the principal components analyses. The herbarium staff, especially Mr. Kent D. Perkins, was always helpful and their service is greatly appreciated. -
United States Department of Agriculture
UNITED STATES DEPARTMENT OF AGRICULTURE INVENTORY No. 79 Washington, D. C. T Issued March, 1927 SEEDS AND PLANTS IMPORTED BY THE OFFICE OF FOREIGN PLANT INTRO- DUCTION, BUREAU OF PLANT INDUSTRY, DURING THE PERIOD FROM APRIL 1 TO JUNE 30,1924 (S. P. I. NOS. 58931 TO 60956) CONTENTS Page Introductory statement 1 Inventory 3 Index of common and scientific names _ 74 INTRODUCTORY STATEMENT During the period covered by this, the seventy-ninth, Inventory of Seeds and Plants Imported, the actual number of introductions was much greater than for any similar period in the past. This was due largely to the fact that there were four agricultural exploring expeditions in the field in the latter part of 1923 and early in 1924, and the combined efforts of these in obtaining plant material were unusually successful. Working as a collaborator of this office, under the direction of the National Geographic Society of Washington, D. C, Joseph L. Rock continued to carry on botanical explorations in the Province of Yunnan, southwestern China, from which region he has sent so much of interest during the preceding few years. The collections made by Mr. Rock, which arrived in Washington in the spring of 1924, were generally similar to those made previously in the same region, except that a remarkable series of rhododendrons, numbering nearly 500 different species, many as yet unidentified, was included. Many of these rhododendrons, as well as the primroses, delphiniums, gentians, and barberries obtained by Mr. Rock, promise to be valuable ornamentals for parts of the United States with climatic conditions generally similar to those of Yunnan. -
Flora of the Carolinas, Virginia, and Georgia, Working Draft of 17 March 2004 -- ERICACEAE
Flora of the Carolinas, Virginia, and Georgia, Working Draft of 17 March 2004 -- ERICACEAE ERICACEAE (Heath Family) A family of about 107 genera and 3400 species, primarily shrubs, small trees, and subshrubs, nearly cosmopolitan. The Ericaceae is very important in our area, with a great diversity of genera and species, many of them rather narrowly endemic. Our area is one of the north temperate centers of diversity for the Ericaceae. Along with Quercus and Pinus, various members of this family are dominant in much of our landscape. References: Kron et al. (2002); Wood (1961); Judd & Kron (1993); Kron & Chase (1993); Luteyn et al. (1996)=L; Dorr & Barrie (1993); Cullings & Hileman (1997). Main Key, for use with flowering or fruiting material 1 Plant an herb, subshrub, or sprawling shrub, not clonal by underground rhizomes (except Gaultheria procumbens and Epigaea repens), rarely more than 3 dm tall; plants mycotrophic or hemi-mycotrophic (except Epigaea, Gaultheria, and Arctostaphylos). 2 Plants without chlorophyll (fully mycotrophic); stems fleshy; leaves represented by bract-like scales, white or variously colored, but not green; pollen grains single; [subfamily Monotropoideae; section Monotropeae]. 3 Petals united; fruit nodding, a berry; flower and fruit several per stem . Monotropsis 3 Petals separate; fruit erect, a capsule; flower and fruit 1-several per stem. 4 Flowers few to many, racemose; stem pubescent, at least in the inflorescence; plant yellow, orange, or red when fresh, aging or drying dark brown ...............................................Hypopitys 4 Flower solitary; stem glabrous; plant white (rarely pink) when fresh, aging or drying black . Monotropa 2 Plants with chlorophyll (hemi-mycotrophic or autotrophic); stems woody; leaves present and well-developed, green; pollen grains in tetrads (single in Orthilia). -
Towards Broader Adaptability of North American Deciduous Azaleas Alexander Q
Towards Broader Adaptability of North American Deciduous Azaleas Alexander Q. Susko, James M. Bradeen, and Stan C. Hokanson orth American deciduous azaleas have and many shades in between, providing tremen- long been adored by horticulturists. dous spring and summer interest in the garden. NThese plants, which belong to the Quickly recognized for their horticultural merit, genus Rhododendron sect. [section] Pentan- North American deciduous azaleas piqued the thera, comprise 15 species distributed from interest of plant collectors upon their discovery Texas to Florida, extending northwards to and continue to be widely lauded by gardeners southern Maine, and with one species occurring today. This has led to a proliferation of cultivars in mountainous areas of Oregon and California. and interspecific hybrids that provide a beauti- These species display a wide range of flower ful floral display every year both in gardens and color, from pure white to deep orange, pink, in the wild (Azalea Society of America 2016). WILLIAM (NED) FRIEDMAN As a common name, “rhododendron” usually refers to large evergreen shrubs whose flowers have ten stamens, such as this elepidote cultivar ‘Album Grandiflorum’ (accession 22810-A) growing in the Arnold Arboretum’s Rhododendron Dell. 16 Arnoldia 74/2 • October 2016 Over 240 unique accessions of Rhododendron sect. Pentanthera exist at the Arnold Arbore- tum including many interspecific hybrids, vari- The Linnaean system classifies organisms into ous cultivars, and 12 of the 15 deciduous azalea increasingly narrow groups until reaching the species native to North America (Table 1). The individual species level. Classification (to the accessions at the Arnold Arboretum have ori- section level) for the North American deciduous gins in a wide range of environments and could azaleas is shown here (US-GRIN 2016). -
Display Garden Docent 2020 PLANT LIST
Display Garden Docent 2020 PLANT LIST Plant Common Name Conservation Status Region of Origin Abies koreana 'Cis' Korean Fir Endangered South Korea Abies pinsapo 'Glauca' Spanish Fir Endangered Southern Spain Acer caudatifolium Taiwan Acer griseum Paperbark Maple Endangered Central And Western China Acorus gramineus 'Pusillus' Grassy Sweet Flag Japan, Mainland Asia Araucaria araucana Monkey Puzzle Tree Endangered Chilean Andes Cool Temperate Regions Northern Arctostphylos uva ursi 'Massachusetts' Kinikinick Hemisphere Cool Temperate Regions Northern Artostaphylos uva ursi "Vancouver Jade' Kinikinick Hemisphere Astelia chathamica Silver Spear at Risk New Zealand Chatham Islands Athrotaxis laxifolia Tasmanian Cedar Endangered Tasmania Garden Origin. Uk. 1923. Lord Azalea 'Silver Sword' Azalea Aberconway, Bodnant, Wales Azara microphylla Boxleaf Azara Chile, Temperate South America Bolax gummifera Cushion Plant Temperate South America Cedrus atlantica 'Glauca Pendula' Atlas Cedar Endangered Morocco To Algeria Cephalotaxus herringtonia 'Duke Gardens' Japanese Plum Yew Japan Chamaecyparis lawsoniana 'Golden Surprise' Lawson Cypress Near Threatened Oregon, Northwest California Chamaecyparis pisifera 'Golden Mops' Japanese False Cypress Southern Japan Chamaecyparis taiwanensis Taiwan Cypress Endangered Taiwan Cornus sanguinea 'midwinter fire' Bloody Dogwood Europe, West Asia Corylopsis pauciflora Buttercup Winter Hazel Endangered Taiwan, Japan Cryptomeria japonica 'Tenzan' Japanese Cedar Japan Cunninghamia lanceolota China Fir China Cupressus -
Plant Exploration of Western Sichuan Summary
서울大學敎 뼈木 l뼈 (ff :fE ffi~'i 24: 14-39 (2004) Bull. of Seoul Nat'l Univ. Arboretum 24: 14-39 (2004) 중국 四川省 西部 식물調훌 張珍成 l , 全正훌 2 , 李興洙3 , 金 輝 4 , 朴하늘 1 , 林孝仁 l , 崔虎 l l 서울大學校 農業生命科學大學 樹木園 및 山林科學部, 2 新표大學 植物應用塵業科, 南大學校 自然史博物館, 4 木浦大學校 應用生命 Plant Exploration of Western Sichuan lChin-Sung Chang, 2Jeong-IlI Jeon, 3Heung-Soo Lee, 4Hui Kim, lSky (Ha-Neul) Park, lHyo-In Lim, and lHo Choi lThe Arboretum and Department of Forest Sciences, Agriculture and Life Science, Seoul National University, Seoul, 151-921, Korea, 2Department of Applied Plant Sciences, Shingu College, Seong-Nam, 462-743, Korea, 3Natural History Museum, Hannam University, Daejeon, 306-791, Korea, 4Mokpo National University, Department of Medicinal Plants Resources, 534-729, Korea Summary This study was carried to investigate the flora of Western Sichuan (Xiaojin-xian, Li-xian, Maerkang, and Dujiangyan). The main purpose of this study is to obtain specimens, seeds and living collections with passport data for the potential use. This exploration was the third of our whole research regarding the investigation of the flora of eastern Asia. The expedition was carried out by a team of scientists from T. B. Lee Herbarium, Seoul National University (SNUA), and the Institute of Botany in Beijing (PE). This cooperation insured involvement by both Chinese and Korean experts in all targeted taxonomic groups, and was essential to successful execution of field studies in China. Field survey was carried out two times in July and September, 2004. From our expedition to western Sichuan, we could visited evergreen broad-leaved and deciduous forests mix (1,800 to 2,500 m), subalpine and alpine conifers [2,500 to 3,200 m; its mountain valleys abundant in spruces, firs and pines, form the (somewhat overlogged) major wood resource for Sichuan], alpine shrublands and meadows (3,200 to 4,500 m) and alpine rock vegetation (above 4,500 m). -
12. RHODODENDRON Linnaeus, Sp. Pl. 1: 392. 1753
Flora of China 14: 260–455. 2005. 12. RHODODENDRON Linnaeus, Sp. Pl. 1: 392. 1753. 杜鹃属 du juan shu Fang Mingyuan (方明渊), Fang Ruizheng (方瑞征 Fang Rhui-cheng), He Mingyou (何明友), Hu Linzhen (胡琳贞 Hu Ling-cheng), Yang Hanbi (杨汉碧 Yang Han-pi); David F. Chamberlain Shrubs or trees, terrestrial or epiphytic, with various hairs, and/or with peltate scales or glabrous, indumentum sometimes detersile (the hairs tangled and coming away as a layer). Leaves evergreen, deciduous or semideciduous, alternate, sometimes clustered at stem apex; margin entire, very rarely crenulate, abaxial indumentum sometimes with a pellicle (a thin skinlike layer on the surface). Inflorescence a raceme or corymb, mostly terminal, sometimes lateral, few- to many-flowered, sometimes reduced to a single flower. Calyx persistent, 5–8-lobed, sometimes reduced to a rim, lobes minute and triangular to large and conspicuous. Corolla funnelform, campanulate, tubular, rotate or hypocrateriform, regular or slightly zygomorphic, 5(–8)-lobed, lobes imbricate in bud. Stamens 5–10(–27), inserted at base of corolla, usually declinate; filaments linear to filiform, glabrous or pilose towards base; anthers without appendages, opening by terminal or oblique pores. Disk usually thick, 5–10(–14)-lobed. Ovary 5(–18)-locular, with hairs and/or scales, rarely glabrous. Style straight or declinate to deflexed, persistent; stigma capitate-discoid, crenate to lobed. Capsule cylindrical, coniform, or ovoid, sometimes curved, dehiscent from top, septicidal; valves thick or thin, straight or twisted. Seeds very numerous, minute, fusiform, always winged, or both ends with appendages or thread-like tails. About 1000 species: Asia, Europe, North America, two species in Australia; 571 species (409 endemic) in China. -
Wa Shan – Emei Shan, a Further Comparison
photograph © Zhang Lin A rare view of Wa Shan almost minus its shroud of mist, viewed from the Abies fabri forested slopes of Emei Shan. At its far left the mist-filled Dadu River gorge drops to 500-600m. To its right the 3048m high peak of Mao Kou Shan climbed by Ernest Wilson on 3 July 1903. “As seen from the top of Mount Omei, it resembles a huge Noah’s Ark, broadside on, perched high up amongst the clouds” (Wilson 1913, describing Wa Shan floating in the proverbial ‘sea of clouds’). Wa Shan – Emei Shan, a further comparison CHRIS CALLAGHAN of the Australian Bicentennial Arboretum 72 updates his woody plants comparison of Wa Shan and its sister mountain, World Heritage-listed Emei Shan, finding Wa Shan to be deserving of recognition as one of the planet’s top hotspots for biological diversity. The founding fathers of modern day botany in China all trained at western institutions in Europe and America during the early decades of last century. In particular, a number of these eminent Chinese botanists, Qian Songshu (Prof. S. S. Chien), Hu Xiansu (Dr H. H. Hu of Metasequoia fame), Chen Huanyong (Prof. W. Y. Chun, lead author of Cathaya argyrophylla), Zhong Xinxuan (Prof. H. H. Chung) and Prof. Yung Chen, undertook their training at various institutions at Harvard University between 1916 and 1926 before returning home to estab- lish the initial Chinese botanical research institutions, initiate botanical exploration and create the earliest botanical gardens of China (Li 1944). It is not too much to expect that at least some of them would have had personal encounters with Ernest ‘Chinese’ Wilson who was stationed at the Arnold Arboretum of Harvard between 1910 and 1930 for the final 20 years of his life. -
The Red List of Rhododendrons
The Red List of Rhododendrons Douglas Gibbs, David Chamberlain and George Argent BOTANIC GARDENS CONSERVATION INTERNATIONAL (BGCI) is a membership organization linking botanic gardens in over 100 countries in a shared commitment to biodiversity conservation, sustainable use and environmental education. BGCI aims to mobilize botanic gardens and work with partners to secure plant diversity for the well-being of people and the planet. BGCI provides the Secretariat for the IUCN/SSC Global Tree Specialist Group. Published by Botanic Gardens Conservation FAUNA & FLORA INTERNATIONAL (FFI) , founded in 1903 and the International, Richmond, UK world’s oldest international conservation organization, acts to conserve © 2011 Botanic Gardens Conservation International threatened species and ecosystems worldwide, choosing solutions that are sustainable, are based on sound science and take account of ISBN: 978-1-905164-35-6 human needs. Reproduction of any part of the publication for educational, conservation and other non-profit purposes is authorized without prior permission from the copyright holder, provided that the source is fully acknowledged. Reproduction for resale or other commercial purposes is prohibited without prior written permission from the copyright holder. THE GLOBAL TREES CAMPAIGN is undertaken through a partnership between FFI and BGCI, working with a wide range of other The designation of geographical entities in this document and the presentation of the material do not organizations around the world, to save the world’s most threatened trees imply any expression on the part of the authors and the habitats in which they grow through the provision of information, or Botanic Gardens Conservation International delivery of conservation action and support for sustainable use. -
Self-Guided Tour Late
Self-Guided Tour Late Welcome to the Rhododendron Species Botanical Garden (RSBG). This self-guided tour will take approximately 1-1.5 hours depending upon how long you spend ex- amining the plants. Please enjoy our 22 acre display of botanical splendor! Please keep in mind the following: Collecting seeds or any plant material is strictly prohibited. Smoking and pets are not allowed in the garden. Please remain on the paths. Picnicking is allowed only on the Con- servatory Terrace. 2525 South 336 St. Federal Way, WA 98063 253-838-4646 Microoft www.rhodygarden.org Open All Year, Tuesday to Sunday 10:00am to 4:00pm #1 Rhododendron strigillosum welcomes you to the gar- Follow the sign to walk back toward the main road. From the stumpery, take the path to the pond den as you enter to the courtyard. This early flowering On your right you will notice a large planting of garden (follow the sign). #15 Rhododendron la- species puts on a spectacular display every year. It has clumping evergreen perennial plants in full flower. nigerum is putting on a spectacular show this distinctive bristles on the midrib, petiole, and foliage. R. This is a lily relative from China known as #7 Ypsi- year. It is a rare species from Tibet and NE India. strigillosum is native to Sichuan and NE Yunnan, China. landra thibetica* and the white flowers are very Take a right turn to visit #16 Rhododendron fragrant. This easily grown woodland wildflower ririei. The bell-shaped flowers are purplish in Turn left on the main road and continue to the path on was introduced into cultivation by the RSBG. -
Native Plants for Wildlife Habitat and Conservation Landscaping Chesapeake Bay Watershed Acknowledgments
U.S. Fish & Wildlife Service Native Plants for Wildlife Habitat and Conservation Landscaping Chesapeake Bay Watershed Acknowledgments Contributors: Printing was made possible through the generous funding from Adkins Arboretum; Baltimore County Department of Environmental Protection and Resource Management; Chesapeake Bay Trust; Irvine Natural Science Center; Maryland Native Plant Society; National Fish and Wildlife Foundation; The Nature Conservancy, Maryland-DC Chapter; U.S. Department of Agriculture, Natural Resource Conservation Service, Cape May Plant Materials Center; and U.S. Fish and Wildlife Service, Chesapeake Bay Field Office. Reviewers: species included in this guide were reviewed by the following authorities regarding native range, appropriateness for use in individual states, and availability in the nursery trade: Rodney Bartgis, The Nature Conservancy, West Virginia. Ashton Berdine, The Nature Conservancy, West Virginia. Chris Firestone, Bureau of Forestry, Pennsylvania Department of Conservation and Natural Resources. Chris Frye, State Botanist, Wildlife and Heritage Service, Maryland Department of Natural Resources. Mike Hollins, Sylva Native Nursery & Seed Co. William A. McAvoy, Delaware Natural Heritage Program, Delaware Department of Natural Resources and Environmental Control. Mary Pat Rowan, Landscape Architect, Maryland Native Plant Society. Rod Simmons, Maryland Native Plant Society. Alison Sterling, Wildlife Resources Section, West Virginia Department of Natural Resources. Troy Weldy, Associate Botanist, New York Natural Heritage Program, New York State Department of Environmental Conservation. Graphic Design and Layout: Laurie Hewitt, U.S. Fish and Wildlife Service, Chesapeake Bay Field Office. Special thanks to: Volunteer Carole Jelich; Christopher F. Miller, Regional Plant Materials Specialist, Natural Resource Conservation Service; and R. Harrison Weigand, Maryland Department of Natural Resources, Maryland Wildlife and Heritage Division for assistance throughout this project. -
The Vascular Flora of Sandy Run Savannas State Natural Area, Onslow and Pender Counties, North Carolina --In Press-- John B
The Vascular Flora of Sandy Run Savannas State Natural Area, Onslow and Pender Counties, North Carolina --In Press-- John B. Taggart Department of Environmental Studies, University of North Carolina at Wilmington, 601 South College Road, Wilmington, North Carolina 28403 ______________________________________________________________________________ ABSTRACT The vascular plants of Sandy Run Savannas State Natural Area, located in portions of Onslow and Pender counties, North Carolina, are presented as an annotated species list. A total of 590 taxa in 315 genera and 119 families were collected from eight plant communities. Families with the highest numbers of species were the Asteraceae (80), Poaceae (66), and Cyperaceae (65). Two species, Carex lutea (golden sedge) and Thalictrum cooleyi (Cooley’s meadowrue), have federal endangered status. A total of 23 taxa are tracked by the North Carolina Natural Heritage Program, while 29 others are considered rare, but not included on the priority list. Of 44 species considered strict endemic or near-endemic taxa to the North and South Carolina Coastal Plain, 18 (41%) were collected in this study. Selected pine savannas within the site were rated as nationally significant by the North Carolina Natural Heritage Program. Fifty-one (51) non-native species were present and represented 8.7 % of the flora. _________________________________________________________________________ INTRODUCTION Sandy Run Savannas State Natural Area encompasses portions of western Onslow and northeastern Pender counties in North Carolina. State acquisition of this coastal plain site began in 2007 as a cooperative effort between The Nature Conservancy in North Carolina and the North Carolina Division of Parks and Recreation to protect approximately 1,214 ha comprised of seven tracts (Figure 1).