Who gave the classification of Pteridophytes?

Haeckel
The term Pteridophyta was first coined by Haeckel. Eichler (1883) divided the plant kingdom into Cryptogamia and Phanerogamia.

What are the classes of Pteridophytes Class 11?

Hint: A pteridophyte is a free-sporing vascular plant with xylem and phloem. On the basis of nature and relation of leaf and stem vascular anatomy and position of sporangia, they are classified into four main classes – Psilopsida, Lycopsida, Sphenopsida and Pteropsida.

What is Pteridophytes and its characteristics?

Pteridophytes are spore-reproducing, seedless plants. They lack xylem vessels and phloem companion cells but have vascular tissues. The majority of the leaves are missing. Homosporous synangium is the sporophyte.

What is the structure of pteridophytes?

Pteridophytes (ferns and lycophytes) are free-sporing vascular plants that have a life cycle with alternating, free-living gametophyte and sporophyte phases that are independent at maturity. The body of the sporophyte is well differentiated into roots, stem and leaves. The root system is always adventitious.

What is the importance of pteridophytes?

They are utilized for medicinal and ornamental purposes, as well as acting as a soil binder. Pteridophytes don’t have seeds and proliferate by spores. Vascular tissues are present, but phloem partner cells and xylem vessels are absent. They feature a distinct plant body that is divided into roots, stems, and leaves.

What is Pteridophyta explain with example?

: any of a division (Pteridophyta) of vascular plants (such as a fern) that have roots, stems, and leaves but lack flowers or seeds.

What are pteridophytes give two examples?

Solution : Pteridophytes which produce similar type of spores are called Homosporous pteridophytes. <br> Ex : Lycopodium, Pteris. <br> Pteridophytes which produce two types of spores are called Heterosporous Pteriodophytes, <br> Ex : Selaginella, Salvinia.

What is the habitat of pteridophytes?

Habitat of Pteridophytes

Cool, shady and moist places are ideal for the growth of pteridophytes. However, some pteridophytes can grow in sandy soil too. Some common habitats of pteridophytes include moist shady forests, crevices of rocks, bogs and marshes, trunks of trees etc.

Who is the father of pteridophytes?

More than 20 years ago, Edward Klekowski (1979), who can validly be called the father of modern studies on pteridophyte genetics, published a summary and synthesis of the unique features of homosporous pteridophytes.

What is the origin of pteridophytes?

They are the earliest known vascular plants which originated in the Silurian period (400 million years ago) of Palaeozoic Era and subsequently diversified and formed the dominant vegetation on earth during Devonian to Permian period. There are controversies regarding their origin and evolution.

What is Telome theory in botany?

telome theory The theory that the leaves (megaphylls) of ferns and seed plants evolved by the modification of terminal branches (telomes) of stems. It envisages that firstly, instead of the primitive equal (dichotomous) branching of the stem, there developed a main axis with lateral side branches.

Why do we classify pteridophytes under Tracheophyta?

Pteridophytes are called tracheophytes because they have vascular tissue.

Where are pteridophytes found?

The species of the Pteridophytes grow luxuriantly in moist tropical and temperate forests and their occurrence in different eco-geographically threatened regions from sea level to the highest mountains are of much interest (Dixit, 2000).

What is the habitat of pteridophytes?

Habitat of Pteridophytes

Cool, shady and moist places are ideal for the growth of pteridophytes. However, some pteridophytes can grow in sandy soil too. Some common habitats of pteridophytes include moist shady forests, crevices of rocks, bogs and marshes, trunks of trees etc.

What does pteridophyte mean?

Definition of pteridophyte

: any of a division (Pteridophyta) of vascular plants (such as a fern) that have roots, stems, and leaves but lack flowers or seeds.

Which is the largest pteridophyte?

General Characters of Pteridophytes:

Smallest Pteridophyte is Azolla (an aquatic fern) and largest is Cyathea (tree fern).

What plants are called pteridophytes?

The Pteridophytes (Ferns and fern allies)

Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. Examples include ferns, horsetails and club-mosses. Fronds in the largest species of ferns can reach some six metres in length!