Download or read book Monograph of Mitrephora Annonaceae written by Aruna D. Weerasooriya and published by . This book was released on 2010 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The genus Mitrephora (Annonaceae) comprises 47 species of small to medium-sized trees, growing in tropical lowland and submontane forests throughout Southeast Asia. The centers of diversity lie in Borneo, where there are 12 species, and the Philippines, where there are 11 species. The flowers are pendent and hermaphroditic, with two whorls of petals, of which the outer petals are larger. The inner petals are apically con-nivent over the productive structures, forming a partially enclosed pollination chamber with small apertures between the basal claws of the petals that enable entry by pollinators. A field study of the pollination ecology of M. heyneana in Sri Lanka (the first such study for the genus) revealed pollination by small nitidulid beetles, although it is possible that other species may be fly-pollinated. This monograph is the first comprehensive taxonomic revi-sion of the genus. The work is based on a comprehensive study of comparative morphology and anatomy, including a survey of previously published work. Conservation assessments are provided for each species, according to current IUCN Red List categories and criteria. All species are mapped and many are illustrated with line drawings and/or photographs. Separate keys for flowering and fruiting material are included, as well as regional keys. Seven new species (M. amdjahii, M. endertii, M. kostermansii, M. multifolia, M. sorsogonensis, M. sundaica, and M. uniflora) and one new combination (M. macrocarpa) are proposed"--Publisher's description.
Download or read book Monograph of Pseuduvaria Annonaceae written by Yvonne C. F. Su and published by . This book was released on 2006 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monograph of the genus Pseuduvaria (Annonaceae) - taxnomic history, morphology and anatomy, distribution, taxonomy (keys, full synonymies, descriptions, maps), line drawings, color plates.
Download or read book Systematic Botany Monographs written by and published by . This book was released on 2006 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Non timber Forest Products of East Kalimantan written by Johannes Leonardus Cornelis Hendrikus Valkenburg and published by . This book was released on 1997 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Resources of South East Asia written by R. H. Lemmens and published by Springer Verlag. This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Program summarizes information on 2900 timbers-yielding species and has been extended with a search facility for wood properties and an interactive wood-anatomy identification system".
Download or read book Biodiversity Evolution and Biogeography of Plants written by and published by . This book was released on 2008 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheophytes of the World written by C.G.G.J. van Steenis and published by Springer. This book was released on 2012-01-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Already as a teenager I had become acquainted with rheophytes, during swimming exercises between Utrecht and Bunnik in the 'Kromme Rijn', an ancient, then canalized course of the river Rhine, where a submerged waterplant occurred gregariously in dense stands on the sandy bottom. In the rather swift current of the then very clear water, its long, linear, ribbon shaped blades floated gracefully in serpentine fashion. We never found it in flower. At times the stands became so dense that the 'rugt' (all subaquatic weed growth) was mowed by scythe from shallow-bottom 'punters', in order to remove this obstacle to water traffic. It was never seen in stagnant water of the ditches in the meadows of the valley. After entering the University, with the purpose of devoting my further life to the study of botany, my attention was roused by the research subject of our professor F.A.F.C. Went, who became my tutor and mental father. As far as his free time was available - and that was precious little because he primarily devoted himself to tuition of students and promovendi besides administration of the botany department - he tried to study the morphology, anatomy and physiology of the Podostemaceae, of which tropical cascade plants he had made large collections and observations in Surinam.
Download or read book A Catalogue of the Annonaceae of Borneo written by Ian Mark Turner and published by . This book was released on 2011 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of Indonesian Papua Part Two written by Andrew J. Marshall and published by Tuttle Publishing. This book was released on 2012-06-26 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ecology of Papua provides a comprehensive review of current scientific knowledge on all aspects of the natural history of western (Indonesian) New Guinea. Designed for students of conservation, environmental workers, and academic researchers, it is a richly detailed text, dense with biogeographical data, historical reference, and fresh insight on this complicated and marvelous region. We hope it will serve to raise awareness of Papua on a global as well as local scale, and to catalyze effective conservation of its most precious natural assets. New Guinea is the largest and highest tropical island, and one of the last great wilderness areas remaining on Earth. Papua, the western half of New Guinea, is noteworthy for its equatorial glaciers, its vast forested floodplains, its imposing central mountain range, its Raja Ampat Archipelago, and its several hundred traditional forest-dwelling societies. One of the wildest places left in the world, Papua possesses extraordinary biological and cultural diversity. Today, Papua’s environment is under threat from growing outside pressures to exploit its expansive forests and to develop large plantations of oil palm and biofuels. It is important that Papua’s leadership balance economic development with good resource management, to ensure the long-term well-being of its culturally diverse populace.
Download or read book Conservation and Utilization of Threatened Medicinal Plants written by P.E. Rajasekharan and published by Springer. This book was released on 2021-07-22 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicinal plants are globally valuable sources of herbal products. Plant-based remedies have been used for centuries and have had no alternative in the western medicine repertoire, while others and their bioactive derivatives are in high demand and have been the central focus of biomedical research. As Medicinal plants move from fringe to mainstream with a greater number of individuals seeking treatments free of side effects, considerable attention has been paid to utilize plant-based products for the prevention and cure of human diseases. An unintended consequence of this increased demand, however, is that the existence of many medicinal plants is now threatened, due to their small population size, narrow distribution area, habitat specificity, and destructive mode of harvesting. In addition, climate change, habitat loss and genetic drift have further endangered these unique species. Although extensive research has been carried out on medicinal and aromatic plants, there is relatively little information available on their global distribution patterns, conservation and the associated laws prevailing. This book reviews the current status of threatened medicinal plants in light of increased surge in the demand for herbal medicine. It brings together chapters on both wild (non-cultivated) and domestic (cultivated) species having therapeutic values. Thematically, conventional and contemporary approaches to conservation of such threatened medicinal plants with commercial feasibility are presented. The topics of interest include, but not limited to, biotechnology, sustainable development, in situ and ex situ conservation, and even the relevance of IPR on threatened medicinal plants. We believe this book is useful to horticulturists, botanists, policy makers, conservationists, NGOs and researchers in the academia and the industry sectors.
Download or read book The Vegetation and Physiography of Sumatra written by Yves Laumonier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fifteen years ago, approximately half the world population was estimated to live in continental and insular South-East Asia (Burma, Thailand, Kampuchea, Vietnam, Laos, Indonesia, Philippines). Then the region had a population growth of four million people every month, and the problem of malnutrition was acute for the rural population. International agricultural development organisations decided that their primary aim would be to double existing levels of agricultural production and, taking account of population growth, to double it again by the end of the century (Whyte 1976). Today, while global issues have greatly affected the parameters of the problem, the situation remains both serious and difficult. Despite impressive efforts in education and health, Indonesia for example, where population (179 millions) growth eased off only slightly between 1980 and 1990 (from 2. 3 percent to 1. 9 percent), is having to cope with increasing difficulties in managing natural resources and particularly its evanescent forest assets which, until 1986, were the second largest source of national revenue. Indonesia has the second largest surface area of tropical rain forests in the world (after Brazil) and thus all the problems linked with management and disappearance of those forests. The latest estimate gives a figure of 109 million hectares of forest in 1990, of which 40. 8 million hectares are production forests (Anon. -F AO 1990).
Download or read book 1997 IUCN Red List of Threatened Plants written by World Conservation Monitoring Centre and published by IUCN. This book was released on 1998 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the most comprehensive compilation of data on threatened vascular plants ever published. It includes the names of some 33,000 plant species determined to be rare or threatened on a global scale. Conservation assessments were provided by the IUCN Species Survival Commission, the National Botanical Institute (South Africa), Environment Australia, and CSIRO, The Nature Conservancy, the Smithsonian Institution, and the Royal Botanic Gardens, Kew, together with hundreds of botanic gardens and botanists throughout the world. The Royal Botanic Gardens Edinburgh and the New York Botanical Garden have made major in-kind contributions.The result of 20 years work by botanists and conservationists around the world, it is intended as a conservation tool, a provider of baseline information to measure conservation progress and as a primary source of data on plant species. Most importantly, however, it provides the building blocks on which to base a worldwide effort to conserve plant species.
Download or read book Red List of Threatened Vascular Plant Species in India written by C. Kameswara Rao (Prof.) and published by . This book was released on 2003 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book World Spice Plants written by Johannes Seidemann and published by Springer Science & Business Media. This book was released on 2005-06-13 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: The many spice and aromatic plants are arranged in alphabetical order of their botanical relevance. It includes all species which have been cultivated for the above purposes. It also covers species whose usage has long ceased or which are used only rarely or have become wild. In total over 1400 plants have been collated. The register of literature has been designed to facilitate the study of a specific plant or spice. Works both on botany and agriculture, and on chemistry, pharmacodynamics and usage have been considered.
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.
Download or read book A Commentary on Loureiro s Flora Cochinchinensis written by Elmer Drew Merrill and published by . This book was released on 1935 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Hand book to the Flora of Ceylon Ranunculace Anacardiace With plates I XXV written by Henry Trimen and published by . This book was released on 1893 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
