Where do ferns produce their spores?
sporangia
On the underside of the fronds are sporangia. Within the sporangia are spore producing cells called sporogenous cells. These cells undergo meiosis to form haploid spores. The spores on most ferns are the same size and perform the same function.
How sporophyte is formed?
A sporophyte (/ˈspɔːr. əˌfaɪt/) is the diploid multicellular stage in the life cycle of a plant or alga. It develops from the zygote produced when a haploid egg cell is fertilized by a haploid sperm and each sporophyte cell therefore has a double set of chromosomes, one set from each parent.
What cell is produced in the Sori?
Lifecycle significance. Sori occur on the sporophyte generation, the sporangia within producing haploid meiospores. As the sporangia mature, the indusium shrivels so that spore release is unimpeded. The sporangia then burst and release the spores.
How do ferns and mosses reproduce?
To reproduce sexually, mosses and ferns produce sperm and eggs. The motile sperm must be able to swim through water to reach and fertilize the eggs, which is why most mosses and ferns live in damp habitats. Even in the absence of rainfall, moisture-laden fog or morning dew produce enough water to accomplish this task.
How does a fern plant reproduce?
Ferns reproduce by spores rather than by seeds. Some plants that are called ferns, such as asparagus ferns, reproduce by seeds and are not true ferns. There are about 12,000 different species, or types, of fern throughout the world.
Where do ferns grow?
tropical
Ecologically, the ferns are most commonly plants of shaded damp forests of both temperate and tropical zones. Some fern species grow equally well on soil and upon rocks; others are confined strictly to rocky habitats, where they occur in fissures and crevices of cliff faces, boulders, and taluses.
Where does spores come from?
Spores are produced by bacteria, fungi, algae, and plants. Bacterial spores serve largely as a resting, or dormant, stage in the bacterial life cycle, helping to preserve the bacterium through periods of unfavourable conditions.
Where is the sporophyte located in bryophytes?
In general, the bryophyte sporophyte is a long, tiny stem that grows on the top of the gametophyte.
What are sori and where are they located?
Sori (singular: sorus) are groups of sporangia (singular: sporangium), which contain spores. Sori are usually found on the underside of the blade. Young sori are commonly covered by flaps of protective tissue called indusia (singular: indusium).
How are mosses produced?
Mosses reproduce by branching and fragmentation, by regeneration from tiny pieces of photosynthetic tissues, and by the production of spores. The spore, under favourable conditions, germinates and grows into a branching green thread, the protonema.
Where do ferns and mosses grow?
Moss and fern species are common in the forest understorey but not usually found in open, dry habitats (e.g., roadside at the start of the trail). The reason for this is that both moss and fern species are relatively primitive plants that are only imperfectly adapted to a terrestrial environment.
Where does fern grow?
damp forests