sporophyte generation

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Mosses and Liverworts in Wales: Basic Facts
... liverworts reproduce? The bryophyte life-cycle is comprised of two separate generations: the gametophyte generation and the sporophyte generation. Each has a characteristic means of reproduction. Plants in the gametophyte stage are ... to (and thus appears to be part of) the parent plant. This is the sporophyte. The sporophyte consists of little more than a capsule, borne upon a thin stalk known as ...
home.clara.net

Mosses and Liverworts in Wales: Archegonia
... and Liverworts in Wales: Archegonia Archegonia Archegonia are the female organs of the gametophyte generation of a moss or liverwort. They consist of flask-like structures with an elongated neck ... antheridia) swim to reach the egg cell. Successful fertilisation leads to the formation of the sporophyte generation - consisting of a spore-bearing capsule and its seta which remain attached to the parent ...
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Characteristics of the Division Bryophyta
... The gametophyte generation is dominant, conspicuous and independent. It may be thalloid or organized into leaf-like structures (phyllids), which are not true leaves; lack cuticle and stomata. The sporophyte generation consists ... a mechanism which ensures dispersal in dry weather only. No vascular tissue in either generation. Root-like structures are rhizoids. Return to Main Menu Division Bryophyta
home.manhattan.edu

Spore dispersal in Bryophytes
... Spore dispersal in Bryophytes SPORE DISPERSAL IN BRYOPHYTES The sporophyte generation is short-lived. It comprises a capsule which produces spores by meiosis and a stalk ... dispersed by air currents and, once they settle somewhere moist, germinate. This recommences the gametophyte generation. The spore first produces a filamentous stage called a protonema. These cells are full of ...
scitec.uwichill.edu.bb

Fern Allies
... There are about 700 Selaginella species world wide and several in the Caribbean. The sporophyte has a creeping habit and is dorsiventrally flattened. As in Lycopodium, there are separate ... swim down the necks of these to fertilize eggs and produce the new diploid sporophyte generation. Click here to see this. Three features distinguish Selaginella from Lycopodium;- Heterospory: Selaginella produces ...
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Mosses and Liverworts
... egg. The resulting zygote begins the sporophyte generation. The Sporophyte Generation Mitosis of the zygote produces an embryo that grows into the mature sporophyte generation. It consists of: a foot, ... develop into the mature leafy shoots. So, The gametophyte generation is responsible for sexual reproduction The sporophyte generation is responsible for dispersal. Evolutionary Position of the ...
users.rcn.com

Genetic Extra Credit LM 53-54
... Together with the pollen grain + pollen tube, this is the entire gametophyte generation of a flowering plant life cycle. The sporophyte generation includes the stems, leaves, roots, flowers, fruits and seeds. After ... between B. terrestris ssp. kernensis with an octoploid (8n) sporophyte number of 48, and B. filifolia with a tetraploid (4n) sporophyte number of 24. The gametes of these two parents ...
waynesword.palomar.edu

Exam #3 Hints
... sporophyte parts of a life cycle. In the diagrams, everything above the red horizontal line is diploid (sporophyte) and everything below the red line is haploid (gametophyte). The terms sporophyte ... with the pollen grain + pollen tube, this is the entire gametophyte generation of a flowering plant life cycle. The sporophyte generation includes the stems, leaves, roots, flowers, fruits and seeds. ...
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t
... and long-lived generation; the sporophyte is almost completely dependent on the gametophyte for support and nutrition for its entire lifespan. In the pteridophytes the sporophyte generation dwarfs and ... but they still need wet periods to produce gametophytes and complete fertilization. Sporophyte The sporophyte generation in ferns and their allies is long-lived compared to the gametophyte. ...
www.anbg.gov.au

UCMP Glossary: E
... , as here defined. It includes all green photosynthetic organisms which begin the development of the sporophyte generation within the archegonium. enations -- Flaps of tissue such as those found on psilophytes. endoderm -- The ...
www.ucmp.berkeley.edu

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