Search results
Results from the WOW.Com Content Network
The radula (US: / ˈ r æ dʒ ʊ l ə /; pl.: radulae or radulas) [1] is an anatomical structure used by mollusks for feeding, sometimes compared to a tongue. [2] It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus .
Radula amentulosa Mitt. Radula amoena Herzog Radula anceps Sande Lac. Radula aneurysmalis (Hook.f. & Taylor) Gottsche, Lindenb. & Nees Radula angulata Steph. Radula anisotoma M.A.M.Renner Radula appressa Mitt. Radula aquilegia (Hook.f. & Taylor) Gottsche, Lindenb. & Nees Radula assamica Steph. Radula australiana K.Yamada Radula australis Austin
For nearly 200 years, Radula remained the only genus in the family, making Radulaceae a monogeneric family within the order Porellales. [7] Herbert Castle's 1936 worldwide monograph of Radula took a broader view of Cladoradula, expanding it to include all species with reproductive structures on short branches, regardless of other features. This ...
Molecular clock analyses indicated that Dactyloradula diverged from other Radula species during the Mesozoic era, positioning it as an ancient genus-level lineage. The estimated age of divergence placed it as old as many flowering plant families, unusual for what was previously considered just one species within a larger genus.
Radula is the second most diverse liverwort genus found in Baltic and Bitterfeld amber, after Frullania which has nine species. However, since these amber deposits formed from conifer resin, the fossils may only represent species that grew on these trees, while other Radula species that lived primarily on other plant hosts may not have been ...
Cladoradula was originally established as a subgenus of Radula by the English bryologist Richard Spruce in 1885, [3] with Radula gottscheana assigned as the type species. Originally Hepstead Castle (1936) expanded the subgenus to include all species with perianths on short branches, [4] making it nearly worldwide in distribution.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Radula visianica is a small, green to yellowish-green plant that grows in patches. Individual shoots are typically 0.3–1.5 mm (0.012–0.059 in) wide and can reach up to 20 mm (0.79 in) in length.