rhynia การใช้

• The Rhynie Chert is named after the village as well as the extinct plant genus Rhynia.
• The " Rhynia " plant was small and stick-like, with simple clubmosses.
• Also found on some early plants such as " Rhynia ", where they are hypothesized to aid in photosynthesis.
• According to the cladogram, the genus " Rhynia " illustrates two steps in the evolution of modern vascular plants.
• "A . major " was first described by Kidston and Lang in 1920 as the new species " Rhynia major ".
• Colonized fossil roots have been observed in " Aglaophyton major " and " Rhynia ", which are ancient plants possessing characteristics of vascular plants and bryophytes with primitive protostelic rhizomes.
• The internal structure of the stems of " P . dawsonii " was considerably more complex than that of other plants of a similar age, e . g . " Rhynia ".
• From a carpet of moss-like gametophytes, the larger " Rhynia " sporophytes grew much like simple clubmosses, spreading by means of horizontal growing stems growing rhizoids that anchored the plant to the substrate.
• It is significantly more complex than some other plants of comparable age ( e . g . " Rhynia " ) and is thought to be part of the group from within which the modern ferns and seed plants evolved.
• ""'Rhynia " "'is a single-species genus of Devonian vascular plants . " Rhynia gwynne-vaughanii " was the sporophyte generation of a vascular, axial, free-sporing eutracheophytes, including modern vascular plants.
• ""'Rhynia " "'is a single-species genus of Devonian vascular plants . " Rhynia gwynne-vaughanii " was the sporophyte generation of a vascular, axial, free-sporing eutracheophytes, including modern vascular plants.
• Two species of " Rhynia " were initially described by R . Kidston and W . H . Lang from the Rhynie chert bed : " R . gwynne-vaughnii " in 1917, " R . gwynne-vaughanii " was named by Kidston and Lang in honour of their former colleague, the botanist Helen Gwynne-Vaughan.
• The species is known only from the Rhynie chert in Aberdeenshire, Scotland, where it grew in the vicinity of a silica-rich hot spring, together with a number of associated vascular plants such as a smaller species " Rhynia gwynne-vaughanii " which may be interpreted as a representative of the ancestors of modern vascular plants and " Asteroxylon mackei ", which was an ancestor of modern clubmosses ( Lycopsida ).