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 [...]
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, [...]
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 [...]