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Author : J. Doorenbos,Marcus Simon Maria Sosef,J. J. F. E. de Wilde
Publisher : Unknown
Page : 276 pages
File Size : 53,6 Mb
Release : 1998
Category : Nature
ISBN : UOM:39015047706745
Author : Mark Tebbitt
Publisher : Unknown
Page : 128 pages
File Size : 50,9 Mb
Release : 2020-09
Category : Electronic
ISBN : 0578713527
A comprehensive, accessible study of the 14 wild, Andean species of tuberous Begonia and their garden hybrids. This book updates the taxonomy of the tuberous begonias and discusses their natural history, conservation, artificial selection, and cultivation.
Author : Anonim
Publisher : Unknown
Page : 560 pages
File Size : 49,7 Mb
Release : 2002
Category : Botany
ISBN : UOM:39015042618267
Author : Mark C. Tebbitt,Alvaro J. Pérez (Botanist)
Publisher : Unknown
Page : 0 pages
File Size : 40,8 Mb
Release : 2022
Category : Begonias
ISBN : 1943751137
Author : Klaus Kubitzki
Publisher : Springer Science & Business Media
Page : 447 pages
File Size : 40,5 Mb
Release : 2010-12-10
Category : Science
ISBN : 9783642143977
This volume, the tenth in the series, comprises modern treatments for the families and genera of the eudicot orders Sapindales and Cucurbitales. The circumscription of the orders, families and genera conforms to the most recent systematic studies. The family treatments include descriptions of the families and the genera, genera classification keys, discussions of relationships and data on their morphology, reproductive biology, distribution, ecology and economic importance. Sapindales and Cucurbitales, as understood in this volume, comprise 16 families with 637 genera and roughly 9,240 species. Sapindales include large tropical and southern temperate tree families such as the Anacardiaceae, Sapindaceae (these in the modern circumscription, which includes Aceraceae and Hippocastanaceae), Meliaceae and Rutaceae, which have long been considered to be closely related. Cucurbitales represent a relatively new ordinal concept; apart from some small woody groups, the order contains two large families, Cucurbitaceae and Begoniaceae, which are predominantly, and likely basically, herbaceous. A detailed treatment of the tropical and southern temperate woody family Myrtaceae (itself comprising 142 genera and 6,700 species) is an addendum to the treatment of the Myrtales in Vol. IX of this series.
Author : Xander van der Maesen,J.M. van Medenbach de Rooy
Publisher : Springer Science & Business Media
Page : 864 pages
File Size : 43,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400902855
Proceedings of the XIVth AETFAT Congress, 22-27 August 1994, Wageningen, the Netherlands
Author : Umberto Quattrocchi
Publisher : CRC Press
Page : 4038 pages
File Size : 55,8 Mb
Release : 2016-04-19
Category : Science
ISBN : 9781482250640
"Following on the successes of two previous dictionary projects, the CRC World Dictionary of Plant Names and the CRC World Dictionary of the Grasses, Umberto Quattrocchi has undertaken this dictionary of economically important plants.... He has done for these plants what was so admirably done in his other works—brought the vast and scattered literature on plant names, and in this case, too, their uses, into coherent order so that the inquisitive scholar can get a foothold." —From the Foreword, Donald H. Pfister, Harvard University and Harvard University Herbaria, Cambridge, Massachusetts The CRC World Dictionary of Medicinal and Poisonous Plants: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology provides the starting point for better access to data on plants used around the world in medicine, food, and cultural practices. The material found in the five volumes has been painstakingly gathered from papers of general interest, reports and records, taxonomic revisions, field studies, herbaria and herbarium collections, notes, monographs, pamphlets, botanical literature, and literature tout court. It includes sources available at various natural history libraries, floras and standard flora works, local floras and local histories, nomenclatural histories, and the International Code of Botanical Nomenclature. Much more than a dictionary, the book provides the names of thousands of genera and species of economically important plants, concise summaries of plant properties, and appropriate observations about medicinal uses. Drawing from a tremendous range of primary and secondary sources, it is an indispensable time-saving guide for all those involved with botany, herbal medicine, pharmacognosy, toxicology, medicinal and natural product chemistry, and agriculture.
Author : Oscar Grillo,Gianfranco Venora
Publisher : BoD – Books on Demand
Page : 380 pages
File Size : 42,8 Mb
Release : 2011-12-02
Category : Science
ISBN : 9789533077727
Driven by the increasing necessity to define the biological diversity frame of widespread, endemic and threatened species, as well as by the stimulating chance to describe new species, the study of the evolutive and spatial dynamics is in constant execution. Systematic overviews, biogeographic and phylogenic backgrounds, species composition and distribution in restricted areas are focal topics of the 15 interesting independent chapters collected in this book, chosen to offer to the reader an overall view of the present condition in which our planet is.
Author : Anton De Lange,F. Bouman
Publisher : Unknown
Page : 60 pages
File Size : 40,7 Mb
Release : 1999
Category : Science
ISBN : OSU:32435060835782
The seeds of about 235 Neotropical Begonia species, representing almost all recognized American Begonia sections, were studied using scanning electron microscopy. The seeds show an appreciable diversity in size, shape, and micromorphology, which is helpful in the delimitation of sections and sometimes also of species. Mean seed length varies from 235 m in Begonia filipes to 1450 m in B. fruticosa; most seeds have a length between 300 m and 600 m. The shape of the seeds varies from almost globular to narrowly elliptic, and the length to width ratio ranges from 1.2 in B. hexandra to 8.1 in B. fruticosa. Further differences exist in the shape of the testal cells, the undulation of the anticlinal walls, the bulging of the outer periclinal walls, and the pattern and roughness of the cuticle. Five of the 15 mainly Brazilian, five of the 12 Andean and Guianan, and one of the eight middle American sections have a seed structure that is characteristic at the sectional level. All these sections have a relatively restricted geographical distribution, and they may differ in growth form or habitat. Most species of the other sections, including the larger and more widely distributed sections Begonia, Gireoudia, and Knesebeckia, have seeds conforming to the ordinary seed type. In a number of the sections, the structural differences of the seeds are nicely correlated with differences in growth form and/or in means of dispersal. In contrast to the African begonias, the great majority of the Neotropical begonias have anemoballistic dispersal. Seeds may be adapted to wind dispersal by extended micropylar and/or chalazal ends with inflated, air-filled cells, such as in the Brazilian sections Solananthera, Trendelenburgia, and Enita and in the Andean section Rossmannia, or by a more pronounced surface with deep, collapsed testal cells, such as in sections Gobenia and Scheidweileria. Zooballistic dispersal by passing animals is supposed to be present in section Casparya. The seeds of sections Casparya and Trachelocarpus have very pronounced cuticular patterns and may be secondarily dispersed by rain wash or by adhering to animals. No distinct indications for an intercontinental relationship between Neotropical, African, and Asiatic sections could be established.
Author : Brian Wynne
Publisher : Unknown
Page : 136 pages
File Size : 49,9 Mb
Release : 1888
Category : Begonias
ISBN : UCAL:$B73207
Author : Annaliese S. Mason
Publisher : CRC Press
Page : 337 pages
File Size : 43,7 Mb
Release : 2017-11-22
Category : Science
ISBN : 9781315352268
Many of our current agricultural crops are natural or agricultural hybrids (between two or more species), or polyploids (containing more than one genome or set of chromosomes). These include potato, oats, cotton, oilseed rape, wheat, strawberries, kiwifruit, banana, seedless watermelon, triticale and many others. Polyploidy and hybridization can also be used for crop improvement: for example, to introgress disease resistance from wild species into crops, to produce seedless fruits for human consumption, or even to create entirely new crop types. Some crop genera have hundreds of years of interspecific hybridization and ploidy manipulation behind them, while in other genera use of these evolutionary processes for crop improvement is still at the theoretical stage. This book brings together stories and examples by expert researchers and breeders working in diverse crop genera, and details how polyploidy and hybridization processes have shaped our current crops, how these processes have been utilized for crop improvement in the past, and how polyploidy and interspecific hybridization can be used for crop improvement in the future.
Author : Anonim
Publisher : Unknown
Page : 640 pages
File Size : 44,6 Mb
Release : 1878
Category : Gardening
ISBN : NYPL:33433007825049
Author : R. Kiew
Publisher : Unknown
Page : 334 pages
File Size : 50,7 Mb
Release : 2005
Category : Begonias
ISBN : CORNELL:31924102065442
Author : Anonim
Publisher : Unknown
Page : 548 pages
File Size : 46,6 Mb
Release : 1976
Category : Botany
ISBN : UOM:39015034377567
A journal of plant systematics, phytogeography and vegetation ecology.
Author : Richard Crang,Sheila Lyons-Sobaski,Robert Wise
Publisher : Springer
Page : 739 pages
File Size : 51,7 Mb
Release : 2018-11-30
Category : Science
ISBN : 9783319773155
Intended as a text for upper-division undergraduates, graduate students and as a potential reference, this broad-scoped resource is extensive in its educational appeal by providing a new concept-based organization with end-of-chapter literature references, self-quizzes, and illustration interpretation. The concept-based, pedagogical approach, in contrast to the classic discipline-based approach, was specifically chosen to make the teaching and learning of plant anatomy more accessible for students. In addition, for instructors whose backgrounds may not primarily be plant anatomy, the features noted above are designed to provide sufficient reference material for organization and class presentation. This text is unique in the extensive use of over 1150 high-resolution color micrographs, color diagrams and scanning electron micrographs. Another feature is frequent side-boxes that highlight the relationship of plant anatomy to specialized investigations in plant molecular biology, classical investigations, functional activities, and research in forestry, environmental studies and genetics, as well as other fields. Each of the 19 richly-illustrated chapters has an abstract, a list of keywords, an introduction, a text body consisting of 10 to 20 concept-based sections, and a list of references and additional readings. At the end of each chapter, the instructor and student will find a section-by-section concept review, concept connections, concept assessment (10 multiple-choice questions), and concept applications. Answers to the assessment material are found in an appendix. An index and a glossary with over 700 defined terms complete the volume.