This open access book offers a fully illustrated compendium of glossary terms and basic principles in the field of palynology, making it an indispensable tool for all palynologists. It is a revised ...and extended edition of “Pollen Terminology. An illustrated handbook,” published in 2009. This second edition, titled “Illustrated Pollen Terminology” shares additional insights into new and stunning aspects of palynology. In this context, the general chapters have been critically revised, expanded and restructured. The chapter “Misinterpretations in Palynology” has been extended with new research data and additional ambiguous terms, e.g., polyads vs. massulae; the chapter “Methods in Palynology” has been extensively enhanced with illustrated protocols showing the majority of the methods and techniques used when studying recent and fossil pollen with LM, SEM and TEM. Moreover, additional information about the description and publication of pollen data is provided in the chapter “How to Describe and Illustrate Pollen Grains.” Various other parts of the general chapters have now been updated and/or extended with more comprehensive textual passages and new illustrations. The chapter “Illustrated Pollen Terms” now features new and more appropriate examples of each term, including additional LM micrographs. Where necessary, the entries for selected pollen terms have been refined by rewording or adding definitions, illustrations, and new micrographs. Lastly, new terms are included, such as “suprasculpture” and the prefix “nano-“ for ornamentation features. The chapter “Illustrated Pollen Terms” is the main part of this book and comprises more than 300 widely used terms illustrated with over 1,000 high-quality images. It provides a detailed survey of the manifold ornamentation and structures of pollen, and offers essential insights into their stunning beauty.
In this paper, the wheat landraces of Oman are chacterized. Their main constituents are Triticum aestivum L. ssp. aestivum, T. aestivum ssp. hadropyrum (Flaksb.) Tzvel., T. compactum Host, T. ...aethiopicum Jakubz.ssp. aethiopicum, T. aethiopicum ssp. vavilovianum Jakubz. et A. Filat. and T. dicoccon Schrank. The classification of the landraces was performed using a morphological method developed by Dorofeev, Filatenko et al. (1979), considering species, subspecies, convarieties and a great number of botanical varieties. Single landraces contained up to three different species ("Sareeaa") and up to 17 different botanical varieties ("Missani"). T. aethiopicum var. hajirense A. Filat. et K. Hammer is newly described. Keys for the determination of important Omani wheat races are proposed. A detailed list describing origin, local names, and infraspecific taxa of the material is provided. Transformation processes of the oasis settlements lead to a replacement of the traditional agricultural systems and the landraces are threatened by genetic erosion.
In this fascinating study, Samantha George explores the cultivation of the female mind and the feminised discourse of botanical literature in eighteenth-century Britain. In particular, she discusses ...British women's engagement with the Swedish botanist, Carl Linnaeus, and his unsettling discovery of plant sexuality.Previously ignored primary texts of an extraordinary nature are rescued from obscurity and assigned a proper place in the histories of science, eighteenth-century literature, and women's writing. The result is groundbreaking: the author explores nationality and sexuality debates in relation to botany and charts the appearance of a new literary stereotype, the sexually precocious female botanist. She uncovers an anonymous poem on Linnaean botany, handwritten in the eighteenth century, and subsequently traces the development of a new genre of women's writing - the botanical poem with scientific notes.The book is indispensable reading for all scholars of the eighteenth century, especially those interested in Romantic women's writing, or the relationship between literature and science.
The Diatom World Seckbach, J. (Joseph); Kociolek, John Patrick
2011, 20110531, 2011-07-01, Letnik:
19
eBook, Book
This volume presents up-to-date information on diatom classification, biology and ecology, in addition to genomics and applied uses. The text discusses the tree of life of diatoms, their ...classifications, the habitats and ecological spectra the group exploits, and the beauty of their form.
Indian Screwpine family Pandanaceae represents the single genus Pandanus with five subgenera that are distributed in two hotspots of India Western Ghats and North East Himalayan region. For the ...first time, Indian Pandanaceae has been assessed for its taxonomic status and phylogenetic relationship. The extensive survey by the authors led to the discovery of three new Pandanus species (two from Western Ghats and one from North East Himalaya), The present taxonomic revision confirmed total number of Pandanus species to 16 that are distributed in the Southern India (10 species) and North East Himalayan region (5 species) with one species common to both regions. A detailed species identification key is given along with conservation status of each species following IUCN Red List Categories and Criteria (2001). The study revealed that out of 16 species, six species are under threatened categories. In recent years, chloroplast DNA based molecular phylogenetic approach is followed to understand the evolutionary relationship among the plant species. The interrelationship among the 16 Pandanus species at infrageneric level has been worked out using this approach that has led to the addition of new subgenus Rykiopsis and rearrangement of some species to the subgenera than those proposed by Stone (1974). Moreover, the interrelationship of Indian Pandanus genus in global context is given. The book also describes the economic importance of each Pandanus species.
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