Tag Archives: classification

Classification of Pteridophytes

The term Pteridophyta was first coined by Haeckel. Eichler (1883) divided the plant kingdom into Cryptogamia and Phanerogamia. The Cryptogamia was further divided into Thallophyta. Bryophyta and Pteridophyta. Engler (1909) included the Bryophyta and Pteridophyta under Embryophyta. Due to discovery of the fossil plants, the classification of Pteridophytes has undergone …

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Cronquist’s System of Classification

Arthur Cronquist was the Senior Curator of New York Botanic Garden and Adjunct Professor of Columbia University. He presented an elaborate interpretation of his concept of classification in The Evolution and Classification of Flowering Plants (1968), The further edition of his classification was published in “An Integrated System of Classification …

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Phylogenetic Classification of John Hutchinson

John Hutchinson was a British botanist associated with Royal Botanic Gardens, Kew, England. He developed and proposed his system based on Bentham and Hooker and also on Bessey. His phylogenetic system first appeared as “The Families of Flowering Plants in two volumes. The first volume contains Dicotyledons (published in 1926) …

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Takhtajan’s System of Classification

Armen Takhtajan (1910-2009) was one of the most influential botanists and systematists of 20th century. He worked as a paleobotanist in Komarov Botanical Institue of Leningrad, USSR (present day Russia). While working in the institute, Takhtajan in 1942 developed a classification scheme for flowering plants which emphasized phylogenetic relationships between …

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The Classification of Algae: Comparing Three Schools of Thought.

Algae refers to a heteromorphic group of organisms which are capable of doing photosynthesis as they contain chlorophyll as their primary pigment and lack a sterile covering around their reproductive cells. The members are grouped together as they share some common characteristics. However, they are not necessarily closely related. It …

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