Archive | Gymnosperm

In this article we will discuss about Welwitschia. After reading this article you will learn about: 1. Introduction to Welwitschia 2. Vegetative Structure of Welwitschia 3. Anatomy 4. Reproductive Structures 5. Resemblances with Gnetum. Contents: Introduction to Welwitschia Vegetative Structure of Welwitschia Anatomy of Welwitschia Reproductive Structures of Welwitschia Resemblances between Welwitschia and Gnetum 1. Introduction to Welwitschia: Dr. Friederich [...]

The following points highlight the top three gymnosperms found in India. The gymnosperms are: 1. Cycadales 2. Gnetales 3. Coniferales. Gymnosperm # 1. Cycadales: Indian Cycadales are represented by only 5 species of Cycas and occur mainly in South India. These are Cycas beddomei (Madras and dry hills of Cudapah in Andhra Pradesh), C. circinalis (Andaman and Nicobar Islands and [...]

In this article we will discuss about the economic importance of Ephedra and Gnetum. Economic Importance of Ephedra: 1. Ephedrine, an alkaloid obtained from several species of Ephedra, is used in the preparation of medicines for treating asthama, bronchitis, cough, cold, nasal disorder and hay fever. In India, the ephedrine is obtained from Ephedra gerardiana, E. intermedia, E. nebrodensis and [...]