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Lejeunea streimannii (Lejeuneaceae, Marchantiophyta), a remarkable new species with robust stems and 5(or 6)-keeled perianths from Papua New Guinea

YU-MEI WEI, QI-MING TANG, RUI-LIANG ZHU

Abstract


Lejeunea streimannii, a new species from Papua New Guinea, is described and illustrated. The new species is characterized by the dioicous plants, robust stem with 1821 rows of cortical cells and a ventral merophyte 46 cells wide, ovate leaves with a rounded, strongly incurved leaf apex, small lobules with unicelluar first tooth and blunt second tooth, large underleaves with a cordate base, inflated perianths with 5(or 6) crenate, slightly winged keels.


Keywords


Hepaticae, Lejeunea riparia, Lejeunea lumbricoides, liverworts, rheophytes, Bryophytes

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DOI: http://dx.doi.org/10.11646/phytotaxa.338.2.3

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

Published by Magnolia Press, Auckland, New Zealand