How do spike mosses reproduce?
How do spike mosses reproduce?
The spike mosses reproduce with spores. They have distinct male and female spores known as microspores and megaspores, respectively. Spore are produced on leaves in enclosures called sporangia. The spores of Selaginella species are both pollinated and dispersed by wind.
What are the classification of Spikemosses?
Selaginella is the sole genus of vascular plants in the family Selaginellaceae, the spikemosses or lesser clubmosses….Selaginella.
| Spikemoss | |
|---|---|
| Class: | Lycopodiopsida |
| Order: | Selaginellales Prantl |
| Family: | Selaginellaceae Willk. |
| Genus: | Selaginella P. Beauv. |
Are spike mosses vascular or nonvascular?
spike moss, (family Selaginellaceae), family of more than 700 species of mossy or fernlike seedless vascular plants of the order Selaginellales. The family consists of a single genus, Selaginella. They are widely distributed in all parts of the world, particularly in the tropics.
Why is Selaginella called Spike Moss?
The sporophytes of species of Selaginella are commonly known as spike mosses, they produce two different kinds of spores and gametophytes (heterospory). This is an advanced feature, which differentiates the family from Lycopodiaceae, but is also present in seed plants.
Is spike moss a lycophyte?
lycophyte, (class Lycopodiopsida), class of spore-bearing vascular plants comprising more than 1,200 extant species. Three lycophyte orders are recognized: the club mosses (Lycopodiales), the quillworts and their allies (Isoetales), and the spike mosses (Selaginellales).
How can spike mosses be distinguished from club mosses?
Close relatives of the clubmosses with which they were formerly classified, spikemosses differ in that their sporangia, nestled in the axils of modified leaves, produce two sizes of spores. Megaspores develop female gametophytes, archegonia, and egg cells.
Who is spike moss?
Harry “Spike” Moss is 70 years old and claims that he is retired from a life of civil-rights activism. It’s true that he makes the retired man’s trek around Lake Calhoun several times a month; that he’s a regular at his gym; and that he gets teary-eyed when he talks about the hard lives of his ancestors.
Is spike moss a Lycophyte?
What is an example of a lycophyte?
Selaginella
LepidodendronIsoetalesSigillariaceaeHuia
Lycophyte/Lower classifications
What are the main differences between spike mosses and club mosses?
Spikemosses: Class Selaginallopsida Close relatives of the clubmosses with which they were formerly classified, spikemosses differ in that their sporangia, nestled in the axils of modified leaves, produce two sizes of spores.
Do spike mosses have true roots?
Spike mosses mainly have a tropical distribution, growing in moist shaded habitats, aithough a few are found in deserts. They are terrestrial, perennial or annual plants, without true roots.
