Is Lycophyta sporophyte dominant?
Lycophytes reproduce by spores and have alternation of generations in which (like other vascular plants) the sporophyte generation is dominant.
What is the dominant generation in Ferns?
The dominant part of the life cycle, i.e., the plant that is recognized as a fern, represents the sporophyte generation. The gametophyte generation includes the phase of the life cycle between the formation of spores by meiosis and fertilization and formation of the zygote.
What are the characteristics of Lycophyta?
Characteristics of Lycophytes
- Microphylls. Leaves have a single, unbranched vein of vascular tissue.
- Rhizomes. Asexual propogation of the sporophyte through underground stems.
- Homosporous or heterosporous. Haploid spores grow into bisexual gametophytes in Lycopodium.
How many species are there in Lycophyta quizlet?
~1,275 species known. Found everywhere, especially in tropics. RESEMBLE TRUE MOSSES BUT NOT RELATED.
Which generation is dominant?
sporophyte
The sporophyte is the dominant generation, but multicellular male and female gametophytes are produced within the flowers of the sporophyte.
What plants are gametophyte dominant?
Over the course of evolution, the gametophyte stage has become progressively reduced. Thus, the gametophyte stage is dominant in the more primitive (nonvascular) plants (bryophytes), whereas the sporophyte is the dominant phase in the life cycle of higher (i.e., vascular) plants.
How many species are there in Lycophyta?
1,200
Lycophyte, (class Lycopodiopsida), class of spore-bearing vascular plants comprising more than 1,200 extant species.
Which is example of class Lycopsida?
– Selaginella bryopteris is an example of Lycopsida.
What kind of plant is a lycophyte?
The lycophytes, when broadly circumscribed, are a vascular plant (tracheophyte) subgroup of the kingdom Plantae. They are sometimes placed in a division Lycopodiophyta or Lycophyta or in a subdivision Lycopodiophytina.
Which is the dominant generation in a lycophyte?
Reproduction of lycophytes As with all plants, lycophytes have two alternating generations. The dominant generation in lycophytes is the sporophyte generation which produces spores for reproduction. Multiple spores are developed in sporangia and dispersed by wind and water.
What are the three classes of Lycopodiopsida plants?
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 are club mosses different from other lycophytes?
The most significant difference between club mosses and other lycophytes is that club mosses only have one type of spore. The quillworts are a class of around 150 species of plants and almost all species belong to the genus Isoetes.
