Question

Characteristics of moss , fern , agaricus and pinus?​

Answer 1

Hey mate....

here's the answer...

Hey mate....

here's the answer....

Agaricus.....

1) They have pileus.

2) They are edible fungus also known as mushrooms.

3) It belongs from the family Agaricaceae .

Moss......

1) Mosses have a multicellular rhizoid.

2) They lack vascular tissue.

3) They have radial symmetry.

Fern....

1) Fronds are termed as leaves of ferns.

2) Rhizome is the stem of the fern plant.

3) They are seedless vascular plants.

Pinus.....

1) They are gymnosperms.

2) It is perennial , large plant.

3) Spiral growth of branches.

Hope it helps you ❤️

Answer 2

Hello!!

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Funaria (moss):

Characteristics:

1. Mosses are commonly found growing in tufts on moist and shady walls, damp soil and on tree trunks.

2. The main plant body is a gametophyte (haploid) which is green, erect (1-3 cm high) and sparsely branched.

3. The plant body is differentiated into root like structures called rhizoids, axis, or stem and spirally arranged leaves.

4. The rhizoids are branched and multicellular which fix the plant to the soil and absorb water and minerals.

5. The plant is monoecious or dioecious, i.e., bear both male and female sex organs on the same plant.

6. The mature plant bears sporophyte which consists of foot, seta and capsule for asexual reproduction.

Dryopteris (fern):

Characteristics

1. Dryopteris is commonly found in shady and moist areas in tropical, subtropical and warm, temperate regions.

2. The plant body is a sporophyte (diploid) which is differentiated into roots, rhizome (underground stem) and leaves.

3. The primary root is short-lived. It is replaced by adventitious roots which grow from the rhizome.

4. The rhizome represents the modified stem. It is a creeping structure and its surface is covered with leaf bases and numerous thin brown hair called ramenta.

5. The leaves are large and bipinnately compound. The entire leaf is called a frond. It has a rigid, scaly petiole elongated to form a rachis bearing two rows of leaflets. Young leaves show circinate vernation (coiled inwards like a spring).

6. The lower (ventral) surface of mature leaves bear spore-producing structures called sori. Such sori-bearing leaves are called sporophyll.

7. Each sorus has many saclike sporangia (spore-bearing structures), which produce spores.

Agaricus (mushroom):

Characteristics:

1. Agaricus is a common, white, fleshy edible mushroom.

2. It grows in the rainy season on damp logs of wood, trunks of trees and decaying organic matter.

3. It is a saprophytic fungus.

4. The body is umbrella-shaped and is divided into a fleshy stalk, or stipe, and a fleshy pileus, or cap.

5. The pileus is dome-shaped, present at the top of stipe. The under surface of the pileus has many radiating strips called gills.

6. A membranous, ring-like structure called annulus is present on the stalk which covers the young basidiocarp.

7. The function of the basidiocarp is to produce and disperse spores.

Pinus:

Characteristics:

1. Pinus is commonly found on temperate and tropical hills.

2. The adult plant is a tall, evergreen tree with widespread branches giving a typical pyramidal shape.

3. The plant body is differentiated into tap root, stem and leaves.

4. The stem is thick, cylindrical and bears two types of branches—long shoots, or branches of unlimited growth and dwarf shoots, or branches of limited growth.

5. The leaves are of two types (dimorphic)—scale leaves which are non-photosynthetic, found at the base of dwarf shoot and foliage leaves which are needle-like, green, photosynthetic, and found on the dwarf shoot.

6. The male and female reproductive parts in the form of male and female cones are present on the same plant, i.e., the plant is monoecious.

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Thanks!!!