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Radula acuta Mitt. Radula acutangula Steph. Radula acutiloba Steph. Radula aguirrei R.M.Schust. ex M.A.M.Renner Radula allisonii Castle 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.
These characteristics, combined with its ancient divergence, suggested it had been evolving independently from other Radula species for a very long time. The recognition of Dactyloradula as a separate genus brought the total number of genera in the family Radulaceae to three, alongside Radula and Cladoradula. [3]
The species was long classified in the genus Radula within subgenus Cladoradula. In 2022, Renner and colleagues conducted a molecular phylogenetics study that revealed the subgenus Cladoradula represents one of the oldest lineages within the family Radulaceae, having diverged from other members during the late Permian period.
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 .
Perrottetinene is a naturally occurring cannabinoid compound found in liverworts from the family Radulaceae native to Japan, New Zealand and Costa Rica, namely Cladoradula perrottetii, Radula marginata and Radula laxiramea, [1] [2] along with a number of similar compounds.
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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.