American Arctic Lichens: 2.The Microlichens is the second volume of John W. Thomson's fundamental reference work on the lichens of the American Arctic, the product of almost four decades of field research and analysis. Thomson, the world's foremost lichenologist of the Arctic region, has undertaken fourteen expeditions to the U.S. and Canadian Arctic to find and identify 623 species in 106 genera of microlichens. Complementing his taxonomy and classifications are 201 black and white illustrations and 512 maps. By bringing together in a single volume keys, descriptions, maps, illustrations, statements of color reactions, chemistry, and ecology, Thomson makes available a compendium of knowledge hitherto available only in scattered literature. American Arctic Lichens 2 will serve as a manual for identification of the crustose lichens of the Canadian and Alaskan Arctic--as well as of other circumpolar regions of the world--providing an invaluable aid to ecologists, conservationists, naturalists, plant taxonomists, and students of Arctic resources and wildlife. Complementing this volume is American Arctic Lichens: 1. The Macrolichens (Columbia University Press, 1984). Together, the two-volume work covers 965 species of lichens in 166 genera, flora Thomson considers an "untapped resource of nature." Thomson notes that lichens, under systematic biochemical explorations, provide ecological indicators, and could provide possible new treatments for cancer and other human diseases. The availability of this manual will greatly accelerate future botanical studies of the vast and fascinating American Arctic.
本书介绍了中国目前已知的民间药,食用地衣126种,隶属于42属,15科.每个物种描述中英文对照,包括:外形结构和显微特征,地衣特征化合物鉴定,生境与分布,用途,性味与功能,主治 ...
The book includes a glossary illustrated with photographs by Sylvia Duran Sharnoff and Stephen Sharnoff and drawings by Susan Laurie-Bourque, all from the original book.
2.3.2.3 Shannon-Wiener measure of diversity The Shannon-Wiener index (Shannon & Weaver 1949) of diversity is the most commonly used to characterize diversity in a community. The index is based on the rationale that the diversity or ...
Right/ B. "Gravel Nieblas." Large thalli prfmarily Niebla effusa, N. josecuervoi, and N. juncosa on coastal hills SW of El Rosario, BCN. Left/ C. "Sand Nieblas." Prmarily Niebla arenaria on alkali hills in canyon SE of Puerto Catarina, ...
Microlichens of the Pacific Northwest
This Bureau of Land Management publication provides species-specific information on 78 special status lichen species included in the 2016 publication of Rare, Threatened and Endangered Species of Oregon by the Oregon Biodiversity ...
Mosses and Lichens
List of Lichens from California and Mexico: Collected by Dr. Edward Palmer from 1888 to 1892
The Chemosystematics of the Lichen Genus Pertusaria in North America North of Mexico
This volume focuses on the interaction of lichens with their substrate, environment and their biogeographic effects.