Gametophyte
In plant s and algae that undergo alternation of generations , a gametophyte is the multicellular structure, or phase, that is haploid , containing a single set of chromosome s The gametophyte produces ..
Microsporangia
Microsporangium is a sporangium that produces spores that give rise to male gametophyte s. Microsporangia are notable in spikemoss es, and a minority of fern s. In Gymnosperms and Flowering plants , the microsporangium ..
Sporeling
, protonema or thallus tissue thallus of the gametophyte . In seedless vascular plants such as fern s and lycopodiophyta , the term sporeling refers to the young sporophyte growing on the gametophyte ..
Alternation of generations
mitosis to produce a gametophyte. The gametophyte produces haploid gametes which fuse to form ... distinct organisms a gametophyte thallus tissue or plant , which is genetically haploid , and a sporophyte ..
Sporophyte
. In mosses, the gametophyte is the dominant generation, while the sporophytes consist of sporangium bearing stalks growing from the tips of the gametophyte s All land plants, and some algae , have ..
Megaspore
egg producing gametophyte, which is fertilized by sperm produced by the male gametophyte developing ... ovule. The megaspore then undergoes megagametogenesis to give rise to the female gametophyte. See ..
Pteridophyte
that is, the normal plant is the diploid sporophyte, with the only haploid structure being the gametophyte ... exception. Unlike the seed plants, the pteridophytes have a gametophyte stage that is free ..
Prothallium
bearing plant, almost exclusively fern s in gametophyte stage in the alternation of generations cycle. Occasionally the term is also used to describe the young gametophyte of a Marchantiophyta liverwort ..
Megagametogenesis
Megagametogenesis is the development of a megaspore into an embryo sac, which is the gametophyte though ... also Megaspore Microspore Gametophyte References Reflist 2 Raven,Peter H., Evert, Ray F., Eichhorn, Susan ..
Tetraphidales
. ISBN 0 521 66097 1. ref Members of this group have small gametophyte s. References references Bryophyte ..
Monoicous
or not an individual sporophyte plant bears one or both kinds of gametophyte . Monoicous and dioicous refer to whether or not an individual gametophyte plant bears one or both kinds of gametangium ..
Schmitzia hiscockiana
and pebbles. The gametophyte plants exist between April and August, and are in the crustose phase from September to December. Species description The gametophyte phase is a soft and gelatinous plant ..
Protonema
of the leafy gametophyte generation portion of the life cycle. Protonema are characteristic ..
Gametangium
that is found in many multicellular protist s, algae , Fungus fungi , and the gametophyte s of plant ... and making contact with the egg cells. Antheridia are common in the gametophyte s in lower ..
Trichomanes speciosum
26 June 2008 . ref The sporophyte form is found in only 16 locations in the UK although the gametophyte ... Flora . Inverness. HIDB. page 40. ref but the species has been discovered on Skye in its gametophyte ..
Non-vascular plant
cycle with an alternation of generations between a diploid sporophyte and a haploid gametophyte , but nonvascular plants include the only plants that have a dominant gametophyte generation. In these plants ..
Myriotrichia
taxobox image Myriotrichia.jpg image caption The gametophyte of M. clavaeformis . Click image for explanation ... reproduction took place in multi chambered mitosporangia . ref name Peters2004 The gametophyte ..
Archegonium
Image Archegonium.jpg right thumb 240px Diagram of archegonium anatomy An archegonium pl archegonia , from the ancient Greek ???? beginning and ????? offspring , is a multicellular structure or organ ...
Anisogamy
, non motile sperm atia. In flowering plant s, the gametes are non motile cells within gametophyte ..
Sporophyll
A sporophyll is a leaf that produces spore s. Sporophylls are part of the diploid sporophyte generation, and the spores are produced by meiosis and will germinate to produce haploid gametophyte s. The ...
Vittariaceae
is absent. This species consists solely of photosynthesis photosynthetic gametophyte s that reproduce ..
Treubia
and female gametophyte s. References Reflist 2 Bryophyte stub Category Liverworts ..
Megaspore mother cell
and develops into the female gametophyte, which eventually produces eggs Raven, Peter,et al . References ..
Sporangium
sporophytic diploid growth arises out of the gametophyte gametophytic haploid archegonium ... brown and becomes dependent upon the gametophyte for nutrition, which is absorbed through the foot base ..
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