Author: Publisher:
ISBN:
Category : Compositae
Languages : en
Pages : 508
Book Description
Compositae Newsletter
Author: Entomological News
Author: Flora of Tropical East Africa - Compositae 1 (2000)
Author: Henk BeentjePublisher: CRC Press
ISBN: 9789061913955
Category : Science
Languages : en
Pages : 320
Book Description
The flora is prepared at Royal Botanic Gardens, Kew, in close collaboration with East African Herbarium and in liaison with the University of Dar es Salaam, the University of Nairobi and the Makerere University. Significant contributions are also made by specialists elsewhere. The flora is designed to a high academic standard and should be a useful resource reference for anyone concerned with the identification and utilization of plants in eastern Africa. Each family is published as a separate part.
Allelopathy
Author: Waseem MushtaqPublisher: Springer Nature
ISBN: 3030408078
Category : Science
Languages : en
Pages : 75
Book Description
Allelopathic studies may be defined in various aspects; weed against weed/crop and vice versa. This book focuses on the ways to utilize the allelopathic potential of weeds or crops for controlling weeds in the agroecosystems. Vigorous use of herbicides is poisoning our environment at an alarming rate; allelopathy can be employed as a useful alternative to control weeds naturally under field conditions. The book contains chapters on the history of allelopathy; allelopathic potential of several important crops (rice, wheat, sorghum, maize, mustard, sunflower) and weeds (members of Solanaceae, Convolvulaceae, Asteraceae, Verbenaceae). Moreover, it highlights how the allelopathic potential of these weeds and crops can be employed effectively to suppress weeds under field conditions. The book also discusses topics on the role of allelochemicals in agroecosystems; impact on local flora; biotic stress induced by allelochemicals; mechanism of action of allelochemicals and future prospective of allelopathy. Prepared with basic concepts and importance of allelopathy, this book is intended for the agricultural community, botanists, students and researchers.
Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia
Author: Advances in Botanical Research
Author: Jean-Claude KaderPublisher: Academic Press
ISBN: 0123858518
Category : Science
Languages : en
Pages : 515
Book Description
'Advances in Botanical Research' publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences. The series features a wide range of reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology and ecology.
Generic and Subtribal Classification of American Vernonieae
Author: Harold Ernest RobinsonPublisher:
ISBN:
Category : Science
Languages : en
Pages : 124
Book Description
The Vernonieae in America is herein defined to exclude the Liabeae and Pseudostifftia (Moquinieae), and to include elements sometimes placed in the Heliantheae (Trichospira) or Lactuceae (Stokesia). Pollen, style bases, raphids, inflorescence form, involucre, anther appendage, and chemistry are some characters used in the reclassification. Tables 1-12 indicate the distribution of these characteristics in most American genera. Vernonia s.s., with type A pollen, is typified by V. noveboracensis (L.) and occurs in the Bahamas, eastern North America, south to central Mexico and has two species in temperate South America. All other species previously placed in Vernonia need to be removed from the genus, a process that is nearly complete for neotropical species. Most American Vernonieae seem to form a single related subgroup in the tribe. Subtribes included in the related subgroup are the Lychnophorinae (x 15, 17, 18) and Centratherinae (x 16) with type A pollen and furoheliangolides; Piptocarphinae (x 17) with type A pollen, deciduous inner involucre, and sometimes opposite leaves; Vernoniinae (x 17), many with glanduliferous anther appendages (including the Lepidaploa complex mostly with echinolophate pollen); and the newly proposed subtribes Sipolisiinae with type A pollen, armed receptacles, and carbonized achenes; Chrestinae with echinolophate pollen; and Leiboldiinae (x 19) with type A pollen, large heads, and a modified callus at the top of the achene. Of uncertain relationship to the preceding related subgroup are Stokesia (x 7), the Elephantopodinae (x 11, 13), and the Rolandrinae (x 8) with echinolophate pollen; three genera with type E pollen (Pacourina, Acilepidopsis, and Mesanthophora); and the Trichospirinae with type A pollen and flattened bicornute achenes. Ten subtribes are recognized, plus four unplaced generic groups. Three of the subtribal names, Leiboldiinae, Chrestinae, and Sipolisiinae are validated in the treatment. The genus Caatinganthus of eastern Brazil, a possible relative of the Elephantopinae, is described as new. A list of the 76 accepted genera of Vernonieae, native or introduced in the New World, is provided, and a complete list of names of American Vernonieae is given with an indication of their present taxonomic dispositions and geographical distributions. Fifteen new combinations are provided.
Flavonoids of the Sunflower Family (Asteraceae)
Author: Bruce A. BohmPublisher: Springer Science & Business Media
ISBN: 3709161819
Category : Science
Languages : en
Pages : 836
Book Description
Flavonoids are secondary plant products that have previously been shown to be helpful in determining relationships among plant groups. This work presents comprehensively the occurrence, patterns of variation, and systematic and evolutionary importance of flavonoids in the sunflower family (Asteraceae), the largest family of flowering plants (23,000 species). It gathers together the more than 2500 reports of flavonoids in Asteraceae published between 1950 to the present and interprets these data in context of new taxonomic (especially generic) alignments. The authors discuss flavonoid patterns with reference to modern phylogenetic studies based on morphology and DNA data. This book provides, therefore, the most exhaustive synthesis and evaluation of the systematic and evolutionary import of flavonoids ever accomplished for any large family of angiosperms.
The Plant-Book
Author: D. J. MabberleyPublisher: Cambridge University Press
ISBN: 9780521414210
Category : Nature
Languages : en
Pages : 880
Book Description
A new edition of one of the most practical and authoritative botanical dictionaries available.
Families and Genera of Spermatophytes Recognized by the Agricultural Research Service
Author: Charles R. GunnPublisher:
ISBN:
Category : Angiosperms
Languages : en
Pages : 520
Book Description