Cleistocarpous Tortella species from South America comprise a new genus of Pottiaceae

Richard H. Zander; Guillermo M. Suárez; Soledad Jimenez

doi:10.1639/0007-2745-124.3.385

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26 July 2021 Cleistocarpous Tortella species from South America comprise a new genus of Pottiaceae

Richard H. Zander, Guillermo M. Suárez, Soledad Jimenez

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The Bryologist, 124(3):385-390 (2021). https://doi.org/10.1639/0007-2745-124.3.385

Abstract

Anaschisma, a new genus of Pottiaceae, is distinguished from both Tortella and Trichostomum by the caducous, cleistocarpous capsule, and from Aschisma by capsule dehiscence irregular, not circumscissle. It is similar to Aschisma in the denticulate, weakly bordered cauline leaves, broadest at the base, and tendency to secund leaf stance. Four species of South America comprise the genus, two of them new to science. The new genus is an apparent descendant of Trichostomum brachydontium because gametophytes are nearly identical but unlike other species of that genus. Trichostomum planifolium is newly reported for Brazil. Corrections are made to a previous treatment.

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Richard H. Zander, Guillermo M. Suárez, and Soledad Jimenez "Cleistocarpous Tortella species from South America comprise a new genus of Pottiaceae," The Bryologist 124(3), 385-390, (26 July 2021). https://doi.org/10.1639/0007-2745-124.3.385

Received: 23 February 2021; Accepted: 16 May 2021; Published: 26 July 2021

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