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Rare and peculiar hornworts: Notothylas orbicularis and N. javanica (Notothyladaceae), new genus and species records for Australia

D. CHRISTINE CARGILL

Abstract


The hornwort genus Notothylas is newly recorded for Australia. Detailed descriptions, illustrations and a key to the two known species, N. orbicularis and N. javanica are provided. A peculiar phenomenon involving presentation of the sporophyte on the ventral (rather than the dorsal) surface of the gametophyte, known only in Australian populations of Notothylas, is reported and discussed.


Keywords


Notothylas javanica, Notothylas orbicularis, northern Australia, hornworts, Northern Territory, Bryophytes, Australia

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DOI: http://dx.doi.org/10.11646/phytotaxa.275.1.1

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand