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Encyclopedia > Dendroceros

Hornwort

Dendroceros sp. Nees
growing on the bark of a tree
Scientific classification
Kingdom: Plantae
Division: Anthocerotophyta
Class: Anthocerotopsida
Order: Anthocerotales
Family: Dendrocerotaceae
Genus: Dendroceros
Species

See text. 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) Hepaticophyta - 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. ...


Dendroceros is a genus in family Dendrocerotaceae of order Anthocerotales, a group of hornworts. The genus contains about 51 species in tropical and sub-tropical regions of the world. See genus (mathematics) for the use of the term in mathematics. ... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Hornworts (or horned liverworts) are a group of non-vascular plants comprising the class Anthocerotae. ...


Description of Dendroceros

The gametophyte is yellowish-green and usually less than one-half cm wide. The thallus branches in a bifurcating pattern. In the subgenus Apoceros, there are cavities in the central strand of the thallus. The edges of the thallus are only a single layer of cells thick and have an undulating margin. It is common to find symbiotic colonies of the blue-green bacteria Nostoc growing among the cells. Under a microscope, the epidermal cells have trigones. A gametophyte is the haploid structure or phase of life of a sexually reproducing plant. ... Thallus may mean: Thallus (tissue), an undifferentiated vegetative tissue (without specialization of function) of some non-mobile organisms, which were previously known as the thallophytes. ... Nostoc is a genus of fresh water cyanobacteria that forms spherical colonies composed of filaments of moniliform cells in a gelatinous sheath. ...


The sporophyte is erect when mature, growing up to 5 cm tall. Like other hornworts, its surface has stomata. The interior of the sporophyte differentiates into a central column and a surrounding mass of spores and elater cells, with a distinct spiral. The spores are both green and relatively large with an ornamented surface. A sporophyte is the diploid structure or phase of life of a sexually reproducing plant. ... This is not about surgically created bowel openings; see stoma (medicine) In botany, a stoma (also stomate; plural stomata) is a tiny opening or pore, found mostly on the undersurface of a plant leaf, and used for gas exchange. ... The term spore have several different meanings in biology. ...


Habitat

Dendroceros grows on humid ground, rocky outcrops, and on the sides of trees. Its name literally means "tree horn".



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