Archive | Gymnosperm

Williamsonia: Occurrence, External Features and Reproduction | Bennettitales

In this article we will discuss about Williamsonia. After reading this article you will learn about: 1. Occurrence of Williamsonia 2. External Features of Williamsonia 3. Reproduction. Occurrence of Williamsonia: Williamsonia belongs to family Williamsoniaceae of Bennettitales. It has been reported from Upper Triassic period but was more abundant in Jurassic. This was earlier discovered under the name Zamia gigas [...]

By |2016-02-24T13:52:18+00:00February 24, 2016|Gymnosperm|Comments Off on Williamsonia: Occurrence, External Features and Reproduction | Bennettitales

Cycadeoidea: History, Features and Anatomy | Bennetitales

In this article we will discuss about Cycadeoidea. After reading this article you will learn about: 1. History of Cycadeoidea 2. Morphological Features of Cycadeoidea 3. Anatomy 4. Reproductive Organs 5. Microsporophyll 6. Gynoecium. Contents: History of Cycadeoidea Morphological Features of Cycadeoidea Anatomy of Cycadeoidea Reproductive Organs of Cycadeoidea Microsporophyll in Cycadeoidea Gynoecium of Cycadeoidea 1. History of Cycadeoidea: Cycadeoidea, [...]

By |2016-02-24T13:52:18+00:00February 24, 2016|Gymnosperm|Comments Off on Cycadeoidea: History, Features and Anatomy | Bennetitales

Cycadales: History, Characters and Genera | Gymnosperms

In this article we will discuss about Cycadales. After reading this article you will learn about: 1. Meaning of Cycadales 2. General Characters of Cycadales 3. Genera 4. Phylogency. Meaning of Cycadales: Cycadales, consisting of 11 living genera and more than 100 species, are distributed in both tropical and warm temperate regions of the world They appeared first in Upper [...]

By |2016-02-24T13:52:17+00:00February 24, 2016|Gymnosperm|Comments Off on Cycadales: History, Characters and Genera | Gymnosperms
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