Question

A vascular cryptogram is
a. Equisetum
b. Cedrus
c. Marchantia
d. Ginkgo

Answer 1

Hint: The plants which represent the natural group and are also named as Tracheophytes are called Vascular plants. The tracheophytes are early free-sporing which are pteridophytes or cryptograms and seed plants. The meaning of the word cryptogram in vascular plants represents separate production which is usually small, archegoniate gametophyte.

Complete answer:
> The genus of the Pteridophyta division is named Equisetum which is called a cryptogram. The plants which consist of a vascular system without seeds are called vascular cryptogamic plants. For example – Equisetum is a hidden seed-bearing vascular plant. The main use of Equisetum plants is to stop bleeding, ulcer healing, and wounds. It also helps to treat tuberculosis and problems in kidneys.

> The coniferous trees in the family of plant Pinaceae are called Cedrus. The maximum height of the citrus tree is approx. 30-40 m tall. The leaves of the Cedrus plants are needle-like and evergreen. They consist of long shoots and arranged open spiral phyllotaxis.

> There are two layers present in the Marchantia plants which are named as an upper photosynthetic layer and lower storage layer. Marchantiaceae is the name of the family of plant Marchantia. It shows both the type of reproduction sexual and asexual.

> The highly unusual non-flowering plants are from the genus Ginkgo. It helps to treat altitude sickness, insufficiency in the cerebral vascular part, dementia, cognitive disorder, etc. It is also known as the maidenhair tree.

Hence, the correct answer is option (A).

Note: Equisetum is a pteridophyte and has haploid spores that can form the gametophyte. There are no seeds present in the vascular cryptogram plants. Equisetum helps to treat various infections in the human body. It is a fern that is commonly called horsetails. They are the living fossil and reproduce the spores.