What do you mean by leptosporangiate and eusporangiate Fern?
Eusporangiate: large sporangium develops from many initial cells and produces many spores. In some cases sporangium fuse to form synangium Eg: Psilotum, Selaginella. 2. Leptosporangiate: small sporangium develops from single initial cell and produces small definite no. of spores(<128).
What is leptosporangiate and eusporangiate type of development?
In eusporangiate type of development, large sporangia develop from a group of initials. In leptosporangiate type of development, small sporangia develop from a single initial, the former builds the entire sporangium, its contents and stalk and the latter takes no part in the process.
What is eusporangiate in biology?
(ˌjuːspɔːˈrændʒɪɪt) adj. (Botany) (of ferns) having each sporangium developing from a group of cells, rather than a single cell, and with no specialized dispersal of spores.
What is called as leptosporangiate?
: having each sporangium formed from a single epidermal cell leptosporangiate ferns —opposed to eusporangiate.
What is difference between Leptosporangiate and eusporangiate?
Eusporangiate Sporangium: A large sporangium developing from several initial cells producing many spores. Leptosporangiate Sporangium: Small, specialized sporangia developing from a single initial cell producing a small, definite number(<128) of spores.
Which of the following is an example of a eusporangiate Fern?
Eusporangiate ferns include some typical-looking ferns such as Ptisana (Marattia) alongside some rather odd-looking plants such as Tmesipteris (fork ferns), Psilotum (whisk ferns), Equisetum (horsetails), Botrychium, and Ophioglossum (adder’s tongue ferns).
What is difference between Leptosporangiate and Eusporangiate?
Are horsetails Eusporangiate?
What is the difference between eusporangiate and Leptosporangiate?
What are types of sporangium?
Sporangia are the specialized spore producing structures found in plants. In Pteridophytes, two types of sporangia are present. The two types of sporangia are (1) Eusporangium and (2) Leptosporangium.
What is leptosporangiate type of development?
In the case of a leptosporangiate type of development, a small sporangium develops from a single initial. They produce a small, definite number of spores. It produces many spores, and sometimes fuse to form synangia. In leptosporangiate development, a single surface cell initiates the sporangium by division.
What is the difference between Eusporangiate and Leptosporangiate?
What’s the difference between a leptosporangiate and an eusporangiate?
is that eusporangiate is (botany) that has sporangia that were each formed from several epidermal cells; of, pertaining to, or characteristic of eusporangiate ferns while leptosporangiate is (botany) that has sporangia that were each formed from a single epidermal cell; of, pertaining to, or characteristic of leptosporangiate ferns.
How did the leptosporangiate fern get its name?
These ferns are called leptosporangiate because their sporangia arise from a single epidermal cell and not from a group of cells as in eusporangiate ferns (a polyphyletic lineage).
How many spores does a leptosporangiate sporangium produce?
Leptosporangiate Sporangium: Small, specialized sporangia developing from a single initial cell producing a small, definite number(<128) of spores. These often occur in a cluster (sorus) that is often covered by a flap of tissue known as an indusium.
Where does leptosporangia occur on a plant?
Leptosporangia occurs usually as clusters on the lower surface of vegetative leaves, often covered with a protective layer called inducium. Euporangia is considered as a primitive type of sporangia.