In this essay we will discuss about archaeopteris which belongs to the family of progymnospermopsida. After reading this essay you will learn about:- 1. Habit of Archaeopteris 2. Morphology of Archaeopteris 3. Stem Anatomy 4. Reproductive Organs. Essay # 1. Habit of Archaeopteris: Large trees up to 18 m high with a large crown of spirally arranged pseudomonopodial branches (Fig. [...]
Here is an essay on the ‘Families of Monocotyledons’ for class 11 and 12. Find paragraphs, long and short essays on the ‘Families of Monocotyledons’ especially written for school and college students. Families of Monocotyledons Essay Contents: Essay on Orchidaceae (Orchid Family) Essay on Zlngiberaceae (Zinger Family) Essay on Cannaceae (Canna Family) Essay on Musaceae (Banana Family) Essay on Amaryllidaceae [...]
In this article we will discuss about the affinities of ginkgo which belong to the family of class ginkgopsida. A. Relation to Ferns: The similarities between Ginkgo and ferns are: i. The leaves of Ginkgo shows striking similarity with Adiantum (maiden hair fern) in form, shape and venation and hence the name maiden hair tree for Ginkgo tree. ii. The [...]