Megaceros is a genus of hornworts in the family Dendrocerotaceae. The genus is found in east Asia, Australia, eastern North America, and tropical America. Its name means 'big horn', and refers both to the exceptionally large size of the gametophytethallus and to the large, horn-shaped sporophyte that the plants produce. Many species have a branching thallus that is more than two centimeters wide. The gametophytes are monoicous. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum (a fern... This is an article about the non-vascular plants known as hornworts. ... Genera Anthoceros Dendroceros Folioceros Megaceros Notothylas Phaeoceros Hornworts (or horned liverworts) are a group of non-vascular plants comprising the class Anthocerotae. ... In biology, a genus (plural genera) is a grouping in the classification of living organisms having one or more related and morphologically similar species. ... Families & Genera Anthocerotaceae Anthoceros Folioceros Leiosporoceros Phaeoceros Sphaerosporoceros Dendrocerotaceae Dendroceros Megaceros Notoceros Notothyladaceae Notothylas Hornworts are a group of bryophytes, or non-vascular plants, comprising the division Anthocerotophyta. ... See also: Asian and Eurasian World map showing Asia. ... World map showing North America A satellite composite image of North America. ... A gametophyte is the haploid structure or phase of life of a sexually reproducing plant. ... Thallus is an undifferentiated vegetative tissue (without specialization of function) of some non-mobile organisms, which were previously known as the thallophytes. ... A sporophyte is the diploid structure or phase of life of a sexually reproducing plant. ... In biology, a species is the basic unit of biodiversity. ... This page is a candidate to be copied to Wiktionary. ...
The genus Megaceros is unusual among hornworts in that the sporophyte does not have stomata, and the spores are green because they contain chloroplasts, as does the related genus Dendroceros. The thallus cells often contain more than one chloroplast, as opposed to other hornwort genera. The elaters are helical. The genus Megaceros was first recognized in 1907 by D. Campbell. A sporophyte is the diploid structure or phase of life of a sexually reproducing plant. ... | ... To meet Wikipedias quality standards, this article or section may require cleanup. ... The inside of a chloroplast Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. ... Species See text. ... An elater is a cell (or structure attached to a cell) that is hygroscopic, and therefore will change shape in response to changes in moisture in the environment. ... This article is about the shape. ... 1907 (MCMVII) was a common year starting on Tuesday (see link for calendar) of the Gregorian calendar (or a common year starting on Wednesday of the 13-day-slower Julian calendar). ...
References
Hicks, Marie L. (1992). Guide to the Liverworts of North Carolina. Durham: Duke University Press.
Parihar, N. S. (1961). An Introduction to Embryophyta, Volume I. Allahbad: Central Book Depot.
Megaceros is a genus of hornwort found within the moister areas of Australia and neighbouring regions.
Typically found growing on rocks and soil banks in streams, Megaceros populations are spread throughout the moister areas of Australia, with an eastern distribution ranging from northern Queensland down to Tasmania.
Mature air-dried spores were removed from the capsules of Megaceros herbarium specimens originating from a variety of Australian populations and type specimens from Australia and the surrounding regions.
Feeds |
Contact