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Gleichenia Punctulata
''Gleichenia'' is a genus of ferns. Its closest relative is the genus ''Stromatopteris'', restricted to New Caledonia. Description These ferns have creeping rhizomes. The compound eaves fork multiple times, with the final leaf lobes ending in a pinnate arrangement. The sori are found at the bottom of the leaves and are made of a few sporangia. They are not covered by an indusium (protective covering). The sori occur in a unique chamber in the laminar pits - a feature found only in this genus. Fossil record The fossil record indicates that this genus had emerged by the late Jurassic period, although it was far more common in the early Cretaceous, Cretaceous period. There is some evidence that it may have emerged even earlier - in the upper Triassic, Triassic period. There are, however, multiple genera in the fossil record that show a similar leaf branching pattern to ''Gleichenia'', which can make it difficult to determine the exact identity of a specimen that does not have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleichenia Microphylla
''Gleichenia microphylla'' is a small fern growing in Australia and New Zealand. Some of the other common names include: scrambling coral fern, umbrella fern, parasol fern, carrier tangle, matua-rarauhe, matuku, tapuwae kotuku, waewae kaka, waewae kotuku and waewae matuku. A common plant, often seen growing under waterfalls, in swamps, under cliffs and in tall open forest. It prefers high humidity and good levels of sunshine and moisture. It can form large colonies. In 1810 it appeared in Prodromus Florae Novae Hollandiae, authored by R.Br., Robert Brown. Description ''Gleichenia microphyllas rachis on major branches has conspicuous and numerous bundles of bristles that are shiny, short, and amber to dark brown in colour. It also has less numerous and scattered fringed scales. It has 2 to 6 cm long linear ultimate branches with close-set Leaflet (botany), pinnules. The undersurface of pinna-rachis has no hairs or scales. The uncoiling tips and young rachises are covered i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene followed the Oligocene and preceded the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by distinct global events but by regionally defined transitions from the warmer Oligocene to the cooler Pliocene Epoch. During the Early Miocene, Afro-Arabia collided with Eurasia, severing the connection between the Mediterranean and Indian Oceans, and allowing the interchange of fauna between Eurasia and Africa, including the dispersal of proboscideans and Ape, hominoids into Eurasia. During the late Miocene, the conn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleichenia Peltophora
''Gleichenia'' is a genus of ferns. Its closest relative is the genus '' Stromatopteris'', restricted to New Caledonia. Description These ferns have creeping rhizomes. The compound eaves fork multiple times, with the final leaf lobes ending in a pinnate arrangement. The sori are found at the bottom of the leaves and are made of a few sporangia. They are not covered by an indusium (protective covering). The sori occur in a unique chamber in the laminar pits - a feature found only in this genus. Fossil record The fossil record indicates that this genus had emerged by the late Jurassic period, although it was far more common in the early Cretaceous period. There is some evidence that it may have emerged even earlier - in the upper Triassic period. There are, however, multiple genera in the fossil record that show a similar leaf branching pattern to ''Gleichenia'', which can make it difficult to determine the exact identity of a specimen that does not have adequately preserved f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleichenia Abscida
''Gleichenia abscida'', commonly known as dwarf coral fern, is an uncommon alpine fern found in southwestern Tasmania. Described by English born dentist and botanist Leonard Rodway, that which distinguishes ''G. abscida'' the most from all other species of ''Gleichenia'' is its frond. While each other species of ''Gleichenia'' have a repetitively branching frond, ''G. abscida'''s frond consists of just two blades, with the apical axil between these two blades lacking meristematic tissue In cell biology, the meristem is a structure composed of specialized tissue found in plants, consisting of stem cells, known as meristematic cells, which are undifferentiated cells capable of continuous cellular division. These meristematic ce .... Morphology Multiple stipes (25–40), 9–46 cm long, with fronds up to 65 cm in length, arise from long creeping rhizomes 2.5–3.5 mm in diameter. Scaly rounded pinnules 1–2 mm across, with flat adaxial surfaces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleichenia Rupestris
''Gleichenia rupestris'' is a small fern growing in eastern Australia. Referred to as one of the coral ferns. The specific epithet ''rupestris'' refers to it being seen growing near rocks. A common plant, often seen growing under waterfalls, in swamps, under cliffs, on rocks and in tall open forest. It prefers high humidity and good levels of sunshine and moisture. It sometimes seen growing next to ''Gleichenia dicarpa'' and ''Gleichenia microphylla'', however those plants have a rough hairy stem, and the stem of ''Gleichenia rupestris'' is smooth and glossy. This plant first appeared in scientific literature in the ''Prodromus Florae Novae Hollandiae'' in the year 1810, authored by Robert Brown Robert Brown may refer to: Robert Brown (born 1965), British Director, Animator and author Entertainers and artists * Washboard Sam or Robert Brown (1910–1966), American musician and singer * Robert W. Brown (1917–2009), American printmaker .... References rupestris Fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleichenia Dicarpa
''Gleichenia dicarpa'', commonly known as pouched coral fern or tangle fern, is a small fern of the family Gleicheniaceae found in eastern Australia, New Caledonia and New Zealand. It forms tangled thickets in wet places such as swamps and riverbanks. Taxonomy Collected by Joseph Banks and Daniel Solander in November 1769 at Mercury Bay in New Zealand, ''G. dicarpa'' appeared in the 1810 work ''Prodromus Florae Novae Hollandiae'', authored by prolific botanist Robert Brown. Its genus name honours the German botanist W.F. von Gleichen, and its species name is Ancient Greek for "two fruit". Common names in New Zealand include tangle fern, Spider fern, and swamp umbrella fern. Australian common names include pouched coral fern, and wiry coral fern. The taxonomy of ''G. dicarpa'' is more complicated than previously thought; a genetic study of the DNA of Gleicheniaceae from New Zealand and Tasmania indicate that a smaller shorter-branched "upland" form from New Zealand is in fact mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gleichenia Mendellii
''Gleichenia'' is a genus of ferns. Its closest relative is the genus '' Stromatopteris'', restricted to New Caledonia. Description These ferns have creeping rhizomes. The compound eaves fork multiple times, with the final leaf lobes ending in a pinnate arrangement. The sori are found at the bottom of the leaves and are made of a few sporangia. They are not covered by an indusium (protective covering). The sori occur in a unique chamber in the laminar pits - a feature found only in this genus. Fossil record The fossil record indicates that this genus had emerged by the late Jurassic period, although it was far more common in the early Cretaceous period. There is some evidence that it may have emerged even earlier - in the upper Triassic period. There are, however, multiple genera in the fossil record that show a similar leaf branching pattern to ''Gleichenia'', which can make it difficult to determine the exact identity of a specimen that does not have adequately preserved f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
