Studies on the Comparative Morphology and Cytology of the Onagraceae PDF Download
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Author: Donald Alexander Johansen
Publisher:
ISBN:
Category : Onagraceae
Languages : en
Pages : 512
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Book Description
Author: Donald Alexander Johansen
Publisher:
ISBN:
Category : Onagraceae
Languages : en
Pages : 512
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Book Description
Author: Brij M. Johri
Publisher: Springer Science & Business Media
ISBN: 3642763952
Category : Science
Languages : en
Pages : 1243
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Book Description
COMPARATIVE EMBRYOLOGY OF ANGIOSPERMS is a review of the developmental processes leading to sexual reproduction in flowering plants. On the basis of embryological data and certain evidences from other areas of study, it lays special emphasis on the relationship among and within the families and orders of angiosperms. Occasionally, inaccuracies in observation and interpretation are pointed out, alternative interpretations offered, gaps in our knowledge highlighted, and prospects outlined. The text is documented with 36 tables, 376 figures, and about 5000 literature citations, which contribute to making this book comprehensive. Besides students and research workers interested in angiosperm embyology, taxonomists, plant breeders, agriculturists, and horticulturists will also find much useful information in this treatise.
Author: T B Batygina
Publisher: CRC Press
ISBN: 1482280035
Category : Science
Languages : en
Pages : 811
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Book Description
This volume covers up-to-date notions of seed structure, processes resulting to its formation (syngamy, triple fusion etc.), as well as of postseminal development (seed dormancy and germination). Great attention has been paid to the morphological and functional aspects of fertilization process and embryo- and endospermogenesis.
Author: Stanford University
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 720
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Book Description
Author: Gwenda L. Davis
Publisher:
ISBN:
Category : Angiosperms
Languages : en
Pages : 552
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Book Description
Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 334
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Book Description
Author: Iowa Academy of Science
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 460
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Book Description
List of members in each volume.
Author: Agra University
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 640
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Book Description
Author: Armen Takhtajan
Publisher: Springer Science & Business Media
ISBN: 1402096097
Category : Science
Languages : en
Pages : 906
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Book Description
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.
Author: Armen Leonovich Takhtadzhi͡an
Publisher: Columbia University Press
ISBN: 9780231100984
Category : Computers
Languages : en
Pages : 662
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Book Description
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).
