What is Leptosporangiate and eusporangiate?
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 eusporangiate type 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 Leptosporangiate in biology?
The Polypodiidae, commonly called leptosporangiate ferns, formerly Leptosporangiatae, are one of four subclasses of ferns, and the largest of these, being the largest group of living ferns, including some 11,000 species worldwide.
What is Sporangiophore in botany?
Definition of sporangiophore : a stalk or similar structure bearing sporangia.
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 selaginella a leptosporangiate?
Answer is : (d) Eusporangiate is the sporangium which is developed from a superficial group of cells, e.g. Selaginella. Leptosporangiate is the sporangium which is developed from a single superficial cell, e.g. Dryopteris.
What is the common name of Lycopodium?
running clubmoss
Integrated Taxonomic Information System – Report
| Lycopodium clavatum var. subremotum Vict. | |
| Lycopodium clavatum var. tristachyum (Pursh) Hook. | |
| Common Name(s): | running clubmoss [English] |
| common club moss [English] | |
| Taxonomic Status: |
Is Sporangiophore and hyphae same?
Sporangiophores are hyphae that are simple, unbranched tubular threads with rounded sporangia at their ends. For asexual reproduction, sporangia develop non-motile multinucleate spores.
What is a group of ferns called?
The group is also referred to as polypodiophyta, or polypodiopsida when treated as a subdivision of tracheophyta (vascular plants). The study of ferns is called pteridology; one who studies ferns is called a pteridologist.
Is Selaginella a fern?
This family is distinguished from Lycopodiaceae (the clubmosses) by having scale-leaves bearing a ligule and by having spores of two types. They are sometimes included in an informal paraphyletic group called the “fern allies”….Selaginella.
| Spikemoss | |
|---|---|
| Genus: | Selaginella P. Beauv. |
| Type species | |
| Selaginella selaginoides | |
| Species |
Which plant is Lycopodium?
clubmosses
Lycopodium (from Greek lykos, wolf and podion, diminutive of pous, foot) is a genus of clubmosses, also known as ground pines or creeping cedars, in the family Lycopodiaceae.
What are Arthrospores?
Arthrospores are a very primitive spore type, formed by the breaking up or disarticulation of fungal mycelia. Many yeast-like fungi such as the genera Geotricum and Trichosporon form arthrospores. These organisms require a series of biochemical tests for definitive identification.