Tropical Woody Rubiaceae
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Tropical Woody Rubiaceae
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Author : E. Robbrecht
language : en
Publisher: Balogh Scientific Books
Release Date : 1988
Tropical Woody Rubiaceae written by E. Robbrecht and has been published by Balogh Scientific Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Rubiaceae categories.
Tropical Woody Rubiaceae
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Author : Elmar Robbrecht
language : en
Publisher:
Release Date : 1988
Tropical Woody Rubiaceae written by Elmar Robbrecht and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Flora Of Tropical East Africa Rubiaceae Volume 3 1991
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Author : B. Verdcourt
language : en
Publisher: CRC Press
Release Date : 1991-06-01
Flora Of Tropical East Africa Rubiaceae Volume 3 1991 written by B. Verdcourt and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-06-01 with Science categories.
The Flora of Tropical East Africa is a catalogue of all 12,104 known wild plant species in Uganda, Kenya, and Tanzania. E. Robbrecht has published a new classification of the family -- 'Tropical Woody Rubiaceae'. The value of the presence of rhaphides is given less prominence.
Identification Of Tropical Woody Plants In The Absence Of Flowers And Fruits
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Author : Roland Keller
language : en
Publisher: Birkhäuser
Release Date : 2013-11-11
Identification Of Tropical Woody Plants In The Absence Of Flowers And Fruits written by Roland Keller and has been published by Birkhäuser this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Nature categories.
While studies of forest vegetation may differ in their underlying objective, be it physiology, ecology or biodiversity, common to all these is the fact that all require taxonomic knowledge. The process of taxon omy or of forest ecology begins in principle with an inventory of the flora, the evaluation of this inven tory still being based to a large extent of reproduction-related organs. In a tropical forest, the majority of flowers or fruits are most often found in the canopy. The canopy, however, is difficult to reach and to do so necessitates heavy, expensive or sophisticated equipment such as a tower, a crane, or a hanging platform suspended from a dirigible balloon. Thus, most of the time, botany is practised near the ground with the aid of light equipment such as ladders, branch loppers, and climbing irons. Furthermore, a large proportion of the trees and lianas of the understorey bear neither flowers nor fruits at certain times of the year. Despite this absence of seasonal characters it should at least be possible to recognize the families of plants by means of easily observable and permanent characters. To meet this need, an identification system has been designed in the form of a dichotomous key. In addition to permitting recognition ofplantfamities in the field in all seasons, this system can serve as a starting-point for a more detailed knowledge of the forest taxa.
Flora Of Tropical East Africa Rubiaceae Volume 3 1991
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Author : Bernard Verdcourt
language : en
Publisher: CRC Press
Release Date : 1991-06-01
Flora Of Tropical East Africa Rubiaceae Volume 3 1991 written by Bernard Verdcourt and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-06-01 with Science categories.
The Biodiversity Of African Plants
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Author : L.J.G. Van der Maesen
language : en
Publisher: Springer Science & Business Media
Release Date : 1996-06-30
The Biodiversity Of African Plants written by L.J.G. Van der Maesen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-06-30 with Nature categories.
The book includes papers on monographs and databases, on diversity of succulents, on various regions such as savannas, lowland rain forests and arid regions, on ecology and conservation, on generic delimitations in flowering plants, and on glacial forest refuges that influence the pattern of present-day floristic composition. Some reports on floral biology and the uses of African plants conclude these proceedings. The book is intended for readers in all disciplines of botany, vegetation science, forestry and nature management in Africa.
A Biosystematic Study Of The African And Madagascan Rubiaceae Anthospermeae
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Author : Christian Puff
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
A Biosystematic Study Of The African And Madagascan Rubiaceae Anthospermeae written by Christian Puff and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Biosystematic studies on the Rubiaceae have a long tradition at the Institute of Botany in Vienna. Within this family the Anthospermeae, and especially its African and Madagascan members, are of particular interest because of several aspects in their evolution: I) Perfection of anemophily within an otherwise nearly exclusively zoophilous family; 2) transitions from hermaphrodity to polygamy and finally dioecy; 3) differentiation from large and long-lived shrubs to short-lived herbs; 4) adaptive radiation from humid to seasonally dry, fire-exposed and xeric habitats. However, morphological diversity linked to sexual differentia tion, modificatory plasticity, and eco-geographical polymorphism have for a long time hampered our understanding of the relationships among these African Anthospermeae. Thus, it was imperative to put special emphasis on field observations and to carry out a variety of experiments with cultivated plants in addition to the analysis of an enormous herbarium material. The author, for this reason, carried out extensive field work, often under very adverse conditions, and covered most African countries from Ethiopia to Southern Africa and twice visited Madagascar. In this way a multitude of data was accumulated on the group in respect to germination and growth form, vegetative and reproductive morphology, anatomy and biology, embryology, karyology, crossing relationships, phytochemistry, distribu tion and ecology, etc.
Tropical Trees And Forests
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Author : F. Halle
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Tropical Trees And Forests written by F. Halle and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
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Author : 朱华
language : en
Publisher: 汉斯出版社
Release Date : 2019-06-01
written by 朱华 and has been published by 汉斯出版社 this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-01 with Art categories.
Lasianthus Jack is a large genus of the family Rubiaceae with more than 180 species, predominantly in the Old World. In tropical Asia there are more than 160 species, only one extending to Australia. The greatest species diversity is found in tropical Asia. The species of the genus occur almost exclusively in the understory of primary forests. There are occasionally records from secondary or seriously disturbed forests or forest edges. Lasianthus species are an ecologically important element in tropical forests of Asia because they are usually present in large numbers in the forests. The species of the genus also show interesting distribution patterns, which may have significant implications to biogeography of tropical Asia and speciation in tropical rain forest.
Secondary Pollen Presentation
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Author : P.F. Yeo
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Secondary Pollen Presentation written by P.F. Yeo and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Secondary pollen presentation is presentation of pollen to vectors by structures other than anthers, either passively or via a specialized protection and delivery system. The main part of the book describes secondary pollen presentation genus-by-genus in 25 families. The subject has never been extensively reviewed, although secondary pollen presentation occurs in the largest family of flowering plants, the Asteraceae (Compositae), and a large family of great economic importance, the Leguminosae. Now material from the scattered literature is brought together and supplemented with original observations. Many species are illustrated and each family is individually discussed. The last two chapters provide an overview of the whole topic. All the main functions that secondary pollen presentation may perform can be carried out in other plants without it. It is concluded from this that the evolution of secondary pollen presentation has been subject to constraint and canalization. The floral biology of most plants with secondary pollen presentation has not been adequately studied. Appendix 1 points to a wide range of topics on which research at various technical and academic levels is needed. The book should also become a reference work for morphologists, systematists, and floral ecologists.