Tag: introduction to pteridophytes

Equisetum is characterized by its distinct jointed, ribbed, and green stems, which are capable of photosynthesis.

Lycopodium is a genus of club mosses that are homosporous, meaning they produce only one type of spore.

Lycopodium leaves are small, simple, and lack a ligule, making them eligulate. Ligulate leaves are characteristic of Selaginella.

In the life cycle of pteridophytes, the sporophyte is diploid and produces spores through meiosis within the sporangia.

Circinate vernation is characteristic feature of division filicophyta  (e.g.,Dryopteris) while Selaginella include in division lycophyta.

The sporangiophores of Equisetum are stalked, peltate (shield-shaped) structures arranged in whorls to form the strobilus.

The prothallus is the independent, heart-shaped, haploid gametophytic phase in the life cycle of pteridophytes.

The protocorm is a tuber-like structure that develops during the early stages of the development of the sporophyte in certain species of Lycopodium.

Amphiphloic siphonostele, where phloem is present on both the inner and outer sides of the xylem, is a characteristic feature of the stem of Marsilea.