Radula (plant) explained

Radula is a genus of liverwort, and is the only genus in family Radulaceae.

It is a leafy liverwort. The appearance of the plants are as a scaly, green surface on the trunk of a tree, log or rock in a sheltered, moist out-door environment. The leaves are rounded, overlapping and consist of two unequal lobes. The smaller lobe is folded beneath the larger one.^[1] The oldest fossil species is Radula cretacea from the Cenomanian aged Burmese amber of Myanmar, belonging to the subgenus of Odontoradula. Molecular evidence suggests that the genus arose during the Triassic, around 227.8 Ma, and the crown group began to diversify during the Early Jurassic, around 176.3 Ma.^[2]

Species

World Flora Online lists up to 262 species.^[3] See List of Radula species, for full list of species.

Some selected species are listed here;

• Radula boninensis
• Radula carringtonii ^[4]
• Radula cavifolia
• Radula complanata
• Radula deflexilobula Promma, L.N.Zhang et R.L.Zhu^[5]
• Radula demissa M.A.M.Renner, 2013
• Radula javanica
• Radula jonesii Bouman, Dirkse & Yamada
• Radula kojana
• Radula laxiramea
• Radula marginata ^[6]
• Radula obtusiloba
• Radula perrottetii
• Radula visianica C. Massal.

External links

• Web site: Short Note of Radula complanata & Porella platyphylla . Walkowiak . Radoslaw . CTC Digital Plant Collection . 2021 . ResearchGate .

Notes and References

1. Book: Atherton . Ian . Bosanquet . Sam . Lawley . Mark . Mosses and liverworts of Britain and Ireland a field guide . 2010 . British Bryological Society . 9780956131010 . First . 26 December 2019.
2. Bechteler. Julia. Schmidt. Alexander R.. Renner. Matthew A. M.. Wang. Bo. Pérez-Escobar. Oscar Alejandro. Schäfer-Verwimp. Alfons. Feldberg. Kathrin. Heinrichs. Jochen. 2017-07-27. A Burmese amber fossil of Radula (Porellales, Jungermanniopsida) provides insights into the Cretaceous evolution of epiphytic lineages of leafy liverworts. Fossil Record. English. 20. 2. 201–213. 10.5194/fr-20-201-2017. 2193-0066. free.
3. Web site: Radula Dumort. . www.worldfloraonline.org . 4 July 2023.
4. Web site: Radula carringtonii J.B. Jack — The Plant List . www.theplantlist.org . 19 February 2021.
5. Promma . Chatchaba . Zhang . Li-Na . Shu . Lei . Chantanaorrapint . Sahut . Renner . Matt A. M. . Zhu . Rui-Liang . Radula deflexilobula (Radulaceae, Marchantiophyta) from Thailand, a New Species based on Morphological and Molecular Data . Cryptogamie, Bryologie. 2018 . 39 . 4 . 481–497 . 10.7872/cryb/v39.iss4.2018.481 . 91380251 .
6. 10.3389/fpls.2018.00537. 29868043. 5954354. Identification of Putative Precursor Genes for the Biosynthesis of Cannabinoid-Like Compound in Radula marginata. Frontiers in Plant Science. 9. 537. 2018. Hussain. Tajammul. Plunkett. Blue. Ejaz. Mahwish. Espley. Richard V.. Kayser. Oliver. free.