Rudolf Mathias Schuster

Phycolepidozia exigua is a species of liverwort in the family Cephaloziellaceae. It was thought to be the only species in the genus until a new species from India, Phycolepidozia indica, was found in 2014. Phycolepidozia exigua is endemic to Dominica, where it is critically endangered. Its natural habitat is subtropical or tropical moist lowland forests. The species is unique among the leafy liverworts in the extreme reduction of its lateral leaves. These leaves consist of only two cells at maturity, so that plants are essentially leafless.

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Lepicoleaceae is a family of liverworts belonging to the order Jungermanniales. Natural compounds, lignans, have been found in liverworts in the Lepicoleaceae family. Genera: Lepicolea Dumort. Vetaforma Fulford & J.Taylor

Allisonia cockaynei is the only species of liverwort in the genus Allisonia and family Allisoniaceae. It is endemic to New Zealand. The genus Calycularia, formerly included within the Allisoniaceae, is now classified in its own family Calyculariaceae. Allisoniaceae is one of only two liverwort families endemic to New Zealand, the other being Jubulopsidaceae. There are no moss or hornwort families endemic to New Zealand.

Brevianthaceae is a family of liverworts belonging to the order Jungermanniales. Genera: Brevianthus J.J.Engel & R.M.Schust. Tetracymbaliella Grolle

Blepharidophyllaceae is a family of liverworts belonging to the order Jungermanniales. Genera: Blepharidophyllum Ångstr. Clandarium (Grolle) R.M.Schust.

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Zoopsis nitida is a species of liverwort in the family Lepidoziaceae. The species was first described by David Glenny, John E. Braggins and Rudolf M. Schuster in 1997.

Trichotemnoma is a genus of liverworts restricted to New Zealand and Tasmania, and contains a single species Trichotemnoma corrugatum. It is classified in the order Jungermanniales and is the only member of the family Trichotemnomataceae within that order. The generic name Trichotemnona was originally published in 1964, but that publication was invalid under the ICBN.

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Sandeothallus is a small genus of liverworts restricted to East Asia. It is classified in the order of Pallaviciniales and is the only member of the family, Sandeothallaceae within that order. The genus was circumscribed by Rudolf Mathias Schuster in Nova Hedwigia vol.36 on pages 10 and 15 in 1982. The genus name of Sandeothallus is in honour of Cornelius Marinus van der Sande Lacoste (1815–1887), who was a Dutch physician, botanist (Bryology). He practised medicine in 1843 in Amsterdam.

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Hattoria yakushimensis is the only species of liverwort in the genus Hattoria, in the family Anastrophyllaceae. It is endemic to Japan. Its natural habitat is temperate forests. It is threatened by habitat loss. The genus name Hattoria is in honour of Sinsuke (Sinske, Shinsuke) Hattori (1915-1992), who was a Japanese botanist (Bryology) and Professor of Botany at the University of Tokyo.

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Leptophyllopsis laxa is a species of liverwort in the family Lophocoleaceae. It is the only member of the genus Leptophyllopsis.

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Andrewsianthus is a genus of liverworts in the family Lophoziaceae. The genus has a cosmopolitan distribution, mainly in the Southern Hemisphere. It was originally published by Rudolf Mathias Schuster in Rev. Bryol. Lichénol. 30: 66 in 1961. The genus name of Andrewsianthus is in honour of Albert LeRoy Andrews (1878-1962) an American professor of Germanic philology and an avocational bryologist, known as "one of the world’s foremost bryologists and the American authority on Sphagnaceae.

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