In this article we will discuss about Gnetum. After reading this article you will learn about: 1. Distribution of Gnetum 2. Habit of Gnetum 3. Anatomy 4. Reproduction 5. Relationships. Contents: Distribution of Gnetum Habit of Gnetum Anatomy of Gnetum Reproduction of Gnetum Relationships of Gnetum 1. Distribution of Gnetum: Gnetum, represented by about 40 species is confined to the [...]
The following points highlight the top five selected examples of Incertae Sedis. The examples are: 1. Vojnovskyales 2. Rhexoxylon 3. Nucellangium 4. Hydropteridangium 5. Czekanowskiales. Incertae Sedis: Example # 1. Vojnovskyales: Vojnovskya paradoxa, a gymnosperm of uncertain affinity, has been reported from the Lower Permian rocks of Palaeozoic era of the Pechora basin of the former USSR, and Nevberg (1965) [...]
The following points highlight the top five gymnosperms found in the world. The gymnosperms are: 1. Cycadales 2. Coniferales 3. Taxales 4. Ginkgoales 5. Gnetales. Gymnosperm # 1. Cycadales: Cycadales include only 9 genera and about 100 species. They are distributed only in the subtropical regions of the world. Out of these nine genera of Cycadales, four are distributed in [...]