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Type: Article
Published: 2022-12-30
Page range: 188–198
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Rediscovery of the Chinese endemic Florschuetziella scaberrima (Bryophyta: Orthotrichaceae) a century after its description leads to its transfer to Leratia

Missouri Botanical Garden, 4344 Shaw Blvd., St. Louis, MO 63110, U.S.A.
Department of Botany, California Academy of Sciences, 55 Music Concourse Dr., Golden Gate Park, San Francisco, CA 94118-4503, U.S.A.
75 North Eagleville Road, Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, 06269-3043, U.S.A.
75 North Eagleville Road, Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, 06269-3043, U.S.A.
75 North Eagleville Road, Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, 06269-3043, U.S.A.
China Florschuetziella Mexico Orthotrichum scaberrimum Orthotrichaceae


Florschuetziella scaberrima (Broth.) Vitt, previously known only from the type material collected in 1915 from Yunnan, China, was rediscovered nearly a century later in 2005. The species is morphologically indistinguishable from the Mexican endemic F. steerei Vitt, but given the paucity of material the two are provisionally retained as distinct, allopatric species. Both species exhibit traits reminiscent of Leratia neocaledonica Broth. & Paris, a species endemic to New Caledonia. A shared ancestry with the other species currently accommodated in Leratia Broth. & Paris, i.e., L. exigua (Sull.) Goffinet and L. obtusifolia (Hook.) Goffinet, and the phylogenetically nested position of Florschuetziella Vitt within Leratia supports the merger of the two generic names, and hence the transfer of species of Florschuetziella, prompting the proposed new combinations Leratia steerei (Vitt) Goffinet, S.He & Shevock and Leratia scaberrima (Broth.) Goffinet, S.He & Shevock.


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