What is the difference between eusporangiate and leptosporangiate?
What is the difference between eusporangiate and leptosporangiate?
Eusporangiate: large sporangium develops from many initial cells and produces many spores. 2. Leptosporangiate: small sporangium develops from single initial cell and produces small definite no.
What is leptosporangiate in biology?
(ˌlɛptəʊspəˈrændʒɪɪt) adj. (Botany) (of ferns) having each sporangium developing from a single cell, rather than from a group, and normally with specialized explosive spore dispersal.
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.
Are horsetails eusporangiate?
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).
Is Lycopodium a Eusporangiate?
Bower (1894) had studied the development of sporangium in Lycopodium. The sporangium develops from a small group of superficial cells arranged in a transverse row on the adaxial side of the sporophyll near the base. Its development is of eusporangiate type.
What is Eusporangiate sporangium?
(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 eusporangiate type of development?
The eusporangiate development is true development from a certain community of cells. The cells which are adjacent to these cells also contribute to the formation of the wall or stack of the sporangium. Complete answer: The eusporangiate sporangia develop from a group of sporangial initial cells.
What is a Synangium?
Definition of synangium 1 : the peripheral part of an arterial trunk from which the branches arise in a lower vertebrate — compare pylangium. 2 : a sorus (as in ferns of the family Marattiaceae) made up of sporangia variously united or cohered into a compound structure.
What is eusporangiate sporangium?
Is Lycopodium a eusporangiate?
Are horsetails gymnosperms?
According to biologists, gymnosperms are believed to be the very first vascular plants. Horsetails are seedless vascular plants that reproduce with spores and are found in a moist environment. In angiosperm, ovules are enclosed by the ovary. In gymnosperm, ovules are not enclosed by an ovary wall.