Download or read book Tropical Woody Rubiaceae written by E. Robbrecht and published by Balogh Scientific Books. This book was released on 1988 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Woody Rubiaceae written by Elmar Robbrecht and published by . This book was released on 1988 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flora of tropical East Africa Rubiaceae Volume 3 1991 written by B. Verdcourt and published by CRC Press. This book was released on 1991-06-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Flora of tropical East Africa Rubiaceae Volume 3 1991 written by Bernard Verdcourt and published by CRC Press. This book was released on 1991-06-01 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of tropical woody plants in the absence of flowers and fruits written by Roland Keller and published by Birkhäuser. This book was released on 2013-11-11 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Biodiversity of African Plants written by L.J.G. Van der Maesen and published by Springer Science & Business Media. This book was released on 1996-06-30 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book A Biosystematic Study of the African and Madagascan Rubiaceae Anthospermeae written by Christian Puff and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Tropical Trees and Forests written by F. Halle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book written by 朱华 and published by 汉斯出版社. This book was released on 2019-06-01 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The New Phytologist written by and published by . This book was released on 1926 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in the Ecological Evolution of the Angiosperms written by John William Bews and published by . This book was released on 1927 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Secondary Pollen Presentation written by P.F. Yeo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book In Defense of Plants written by Matt Candeias and published by Mango Media Inc.. This book was released on 2021-03-16 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Study of Plants in a Whole New Light “Matt Candeias succeeds in evoking the wonder of plants with wit and wisdom.” ―James T. Costa, PhD, executive director, Highlands Biological Station and author of Darwin's Backyard #1 New Release in Nature & Ecology, Plants, Botany, Horticulture, Trees, Biological Sciences, and Nature Writing & Essays In his debut book, internationally-recognized blogger and podcaster Matt Candeias celebrates the nature of plants and the extraordinary world of plant organisms. A botanist’s defense. Since his early days of plant restoration, this amateur plant scientist has been enchanted with flora and the greater environmental ecology of the planet. Now, he looks at the study of plants through the lens of his ever-growing houseplant collection. Using gardening, houseplants, and examples of plants around you, In Defense of Plants changes your relationship with the world from the comfort of your windowsill. The ruthless, horny, and wonderful nature of plants. Understand how plants evolve and live on Earth with a never-before-seen look into their daily drama. Inside, Candeias explores the incredible ways plants live, fight, have sex, and conquer new territory. Whether a blossoming botanist or a professional plant scientist, In Defense of Plants is for anyone who sees plants as more than just static backdrops to more charismatic life forms. In this easily accessible introduction to the incredible world of plants, you’ll find: • Fantastic botanical histories and plant symbolism • Passionate stories of flora diversity and scientific names of plant organisms • Personal tales of plantsman discovery through the study of plants If you enjoyed books like The Botany of Desire, What a Plant Knows, or The Soul of an Octopus, then you’ll love In Defense of Plants.
Download or read book A Revised Handbook to the Flora of Ceylon written by M. D. Dassanayake and published by CRC Press. This book was released on 1998-06-01 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an accessible taxonomic base for acanthaceae; rubiaceae; and sapindaceae of Sri Lankan vegetation. It forms a significant part of the vascular flora of the island.
Download or read book Phylogenomic Discordance in Plant Systematics written by Stefan Wanke and published by Frontiers Media SA. This book was released on 2023-11-15 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phylogenetics often uncovers contradicting hypotheses regarding the relationships within the same group of organisms, a phenomenon known since the beginning of the molecular systematics era. While, historically, single marker-based analyses produced discordance, nowadays entire cellular genomes or portions of the same genomic compartment conflict with others or the rest, respectively. In contrast to the beginning of the molecular systematics era, when adding markers and taxa offered a way out of systematic errors, genome inference-based incongruences cannot be addressed and explained easily. Disagreeing phylogenomic hypotheses might originate from various evolutionary processes, including but not limited to hybridization or incomplete lineage sorting, thereby leading to gene tree-versus species tree-associated discrepancies. Today, this can be expanded to genome discordance, where phylogenomic signals of organellar genomes (plastid, mitochondrial) and the nuclear genome disagree due to intrinsically different coalescent paths or phenomena like organelle capture.
Download or read book Plant Cyclotides written by and published by Academic Press. This book was released on 2015-11-24 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Botanical Research publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences. Currently in its 76th volume, the series features several reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology and ecology. Publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences Contains commentary by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology, and ecology This volume features reviews of the fast moving field of plant cyclotides
Download or read book Flowering Plants written by Armen Takhtajan and published by Springer Science & Business Media. This book was released on 2009-07-06 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: Armen Takhtajan is among the greatest authorities in the world on the evolution of plants. This book culminates almost sixty years of the scientist's research of the origin and classification of the flowering plants. It presents a continuation of Dr. Takhtajan’s earlier publications including “Systema Magnoliophytorum” (1987), (in Russian), and “Diversity and Classification of Flowering Plants” (1997), (in English). In his latest book, the author presents a concise and significantly revised system of plant classification (‘Takhtajan system’) based on the most recent studies in plant morphology, embryology, phytochemistry, cytology, molecular biology and palynology. Flowering plants are divided into two classes: class Magnoliopsida (or Dicotyledons) includes 8 subclasses, 126 orders, c. 440 families, almost 10,500 genera, and no less than 195,000 species; and class Liliopsida (or Monocotyledons) includes 4 subclasses, 31 orders, 120 families, more than 3,000 genera, and about 65,000 species.This book contains a detailed description of plant orders, and descriptive keys to plant families providing characteristic features of the families and their differences.
