Question

Identify the division of the following plant and write features of the division.

1. Ulothrix
2. Riccia
3. Marsilea
4. Cycas
5. Wheat
6. Gram

Answer 1

Division is a taxonomic rank used for classifying plants and animals. It is a rank which is similar to phylum. The divisions include liverworts, hornworts, ferns, mosses, bryophytes, polypodiophyta, cycadophyta, Magnoliophyta etc.

Complete answer:
1) Ulothrix: It belongs to the genus of filamentous algae family Ulothrichaeae and is mostly found in aquatic habitat. They are eukaryotic and unicellular. It grows well in cold temperatures during spring and winters. Asexual reproduction is seen in this species.
2) Riccia: It is the genus of liverworts belonging to the order Marchantiales. It is present throughout the world. They occur as small creeping plants found as ribbons tangled in large masses. Some species form rosettes on wet soil. The plant is not differentiated into root, stem or leaf.
3) Marsilea: It is the species of aquatic fern belonging to the division polypodiophyta. The appearance of this species is unusual and does not resemble ferns. It is creeping like in water whereas cushion-like on land. It is used as medicine in China.
4) Cycas: These plants belong to Cycadophyta which is not related to trees, ferns, palms or any other plants. These are gymnosperms and can be distinguished by crowns of large pinnately compound leaves and cones which appear at the ends of the branches.
5) Wheat: It is widely grown as an edible crop. It is eaten as grain which is rich in dietary fibres and nutrients. It belongs to the division Magnoliophyta.
6) Gram: It is an angiospermic plant which is rich in proteins. It is widely consumed worldwide. It belongs to the family fabaceae.

Note: The division in the plant kingdom includes mosses, ferns, gymnosperms and angiosperms. The division of plant kingdom differs widely from animal kingdom. The division called thallophyta is the simplest division in plants. It contains bacteria, algae, fungi, lichens.