Download or read book Phytologia written by and published by . This book was released on 1994 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: A journal of plant systematics, phytogeography and vegetation ecology.
Download or read book Annual Report written by United States National Museum and published by . This book was released on 1951 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Assistant Director and of the Curators of the U S National Museum written by United States National Museum and published by . This book was released on 1962 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Bamboos of the World written by D. Ohrnberger and published by Elsevier. This book was released on 1999-01-29 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bamboos constitute one of a few select categories of plants which are taxonomically related, very rich in species and of vital economic and ecological importance. Since the early 20th century the accepted number of species of bamboos, world wide, has tripled. However, until now information was scattered through numerous, often not easily available publications.The Bamboos of the World, is the first comprehensive (taxonomic as well as horticultural) reference work that provides basic information on bamboos world wide, whether they are wild or cultivated, well-known or rather unknown. The work, based on bamboo literature, facilitates access to further data by citation and a comprehensive bibliography. Among the main data included are botanical names with synonyms, and geographical distribution of genera and species, varieties with their distinctive characters, common bamboo names, plant introductions to the West, plant size and uses. The distribution of genera is mapped.The Bamboos of the World presents a wealth of essential information in an accessible and structured manner. It gives the opportunity to check under what names, and where, relevant information on any bamboo can be found. For the researcher with management and development interests it provides a convenient means of basing bamboo resource on a sound understanding of generic and species relationships, with names that appear in earlier literature put into context. The work should prove to be invaluable for those interested in the morphology, taxonomy, distribution and cultivation of bamboos. It should support botanical, forestry, horticultural and ecological research, training and resource management.
Download or read book Report Upon the Condition and Progress of the U S National Museum During the Year Ending June 30 written by United States National Museum and published by . This book was released on 1952 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbiology Abstracts written by and published by . This book was released on 1988 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Checklist of United States Trees native and Naturalized written by Elbert Luther Little and published by . This book was released on 1979 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Two Insect Species for Control of Eurasian Watermilfoil written by Gary R. Buckingham and published by . This book was released on 1981 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of the evaluation of two species of insects for the biological control of Eurasian watermilfoil (Myriophyllum spicatum L.). One of the species is a native weevil, Litodactylus leucogaster (Marsh.), which attacks the flower spikes, and the other is an accidentally introduced European moth, Acentria nivea (Oliver), whose larvae feed on the leaves and stems. The biology of L. leucogaster was studied in detail and host-specificity tests were conducted with adults and larvae. Since it was determined to be specific to watermilfoils, it was released at Crystal River, Florida, on 22 August 1979. Two adults were captured at Crystal River in November indicating possible establishment. The pyralid moth, A. nivea, was difficult to rear in the laboratory. Since the females were active only one night, successful matings were rare in the small colony. Larval production was best in containers that were minimally disturbed. the larvae required water temperatures below 22 C for development though they could survive short periods at higher temperatures. The larvae were not specific to milfoil; however, A. nivea may still be of interest as a member of a complex of species which attack milfoil. (Author).
Download or read book Flora of North America Volume 5 Magnoliophyta Caryophyllidae Part 2 written by Flora of North America Editorial Committee and published by Oxford University Press. This book was released on 1993 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: FNA presents for the first time, in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, and morphological characteristics of all plants native and naturalized found in North America north of Mexico.
Download or read book Crop Wild Relatives written by Danny Hunter and published by Routledge. This book was released on 2012-06-25 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crop wild relatives (CWR) are plant species which are more or less closely related to crops. They are a vital resource by providing a pool of genetic variation that can be used in breeding new and better adapted varieties of crops that are resistant to stress, disease, drought and other factors. They will be increasingly important in allowing crops to adapt to the impacts of climate, thus safeguarding future agricultural production. Until recently, the main conservation strategy adopted for CWR has been ex situ - through the maintenance of samples as seed or vegetative material in various kinds of genebank or other facilities. Now the need to conserve CWR in their natural surroundings (in situ) is increasingly recognized. Recent research co-ordinated by Bioversity International has produced a wealth of information on good practices and lessons learned for their effective conservation. This book captures the important practical experiences of countries participating in this work and describes them for the wider conservation community. It includes case studies and examples from Armenia, Bolivia, Madagascar, Sri Lanka and Uzbekistan, which are important centres of diversity for crop wild relatives, and covers four geographical regions - the Caucasus, South America, Africa and the Asia-Pacific Region. It provides practical, relevant information and guidance for the scaling-up of actions targeting CWR conservation around the world.
Download or read book CRC World Dictionary of Grasses written by Umberto Quattrocchi and published by CRC Press. This book was released on 2006-04-26 with total page 2402 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2008 NOMINEE The Council on Botanical and Horticultural Libraries Annual Award for a Significant Work in Botanical or Horticultural Literature now we have easier and better access to grass data than ever before in human history. That is a marked step forward. Congratulazioni Professor Quattrocchi!-Daniel F. Austin, writing in Economic Botany &n
Download or read book Federal Register written by and published by . This book was released on 1988-01-19 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Smithsonian Year written by Smithsonian Institution and published by . This book was released on 1971 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Begonian written by and published by . This book was released on 1985 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statement by the Secretary written by Smithsonian Institution and published by . This book was released on 1976 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report United States National Museum written by United States National Museum and published by . This book was released on 1954 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flora Mesoamericana written by Rachel Jane Hampshire and published by . This book was released on 1988 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
