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.

The culmination of more than fifty years of research by the foremost living expert on plant classification, Diversity and Classification of Flowering Plants is an important contribution to the field of plant taxonomy. In the last decade, the system of classifying plants has been thoroughly revised. Instead of describing every individual family, Takhtajan includes descriptions in keys to families, which he calls "descriptive keys." The advantage of descriptive keys is that they give both the characteristic features of the families and their differences. The delimitation of families and orders drastically differs from the one accepted by the Englerian school and from the one accepted in Arthur Cronquist's system. Takhtajan favors the smaller, more natural families and orders, which are more coherent and better-defined, where characters are easily grasped, and which are more suitable for information retrieval and phylogenetic studies, including cladistic analysis (because it reduces polymorphic codings).

A substantial and important work, containing many papers on the structure, morphology, taxonomy, chemistry, pollination biology, etc. of the leguminosae. The two parts sold only as a set; paperback in card slipcase.

First published in 1950, this monograph on the morphology of flowering plants explores the relationship between philosophy and botany.

"The expert text describes each family's features, diversity of genera and species, distribution, habitat, classification, botany, natural history, and economic uses. More than 300 color illustrations and 250 botanical line drawings illustrate these showiest of New World plants - flora that range from the deserts of Mexico and the coasts of Central America to the vast lowland rain forests of Amazonia and the cloud forests of the Andes. Some of the plants described are distributed widely; others inhabit only one of the many unusual microclimates and habitats that result from tropical America's incredible variation in elevation and rainfall and its millions of years of geological change."--BOOK JACKET.

Revised thesis (doctoral) - University of Michigan, Ann Arbor, 2004.

A standard reference providing a comprehensive overview of the grass family to generic level. Illustrated with 24 line drawings.

Grasses: Systematics and Evolution is a selection of the very best papers from the Proceedings of the Third International Symposium on Grass Systematics and Evolution held in Sydney, Australia in 1998. The papers represent some of the leading work from around the world on grasses and include reviews and current research into the comparative biology and classification. All 41 papers have been peer-reviewed and edited.