The Lejeunea tumida species group (Lejeuneaceae: Jungermanniopsida) in New Zealand
Matt A. M. Renner A , Elizabeth A. Brown A C and Glenda M. Wardle B
+ Author Affiliations
- Author Affiliations
A National Herbarium of New South Wales, Mrs Macquaries Road, Sydney, NSW 2000, Australia.
B School of Biological Sciences, Heydon Laurence Building A08, University of Sydney, Sydney, NSW 2006, Australia.
C Corresponding author. Email: Elizabeth.Brown@rbgsyd.nsw.gov.au
Australian Systematic Botany 23(6) 443-462 https://doi.org/10.1071/SB10037
Submitted: 9 August 2010 Accepted: 20 October 2010 Published: 23 December 2010
Abstract
Plants attributed to Lejeunea tumida comprise a heterogeneous aggregate of four morphologically distinct species, each circumscribed by subtle yet significant differences in perianth morphology, oil bodies, lobule morphology and lobe ornamentation. Size and shape also have utility in delimiting species, despite morphological overlap. We employ geometric morphometric methods to quantify and communicate diagnostic differences in lobule shape. Two new species, Lejeunea oracola M.A.M.Renner and Lejeunea rhigophila M.A.M.Renner are described, and a previously described species of Taxilejeunea reinstated as a new combination, Lejeunea colensoana (Steph.) M.A.M.Renner. Descriptions and illustrations of these three species and Lejeunea tumida Mitt. are presented. All four species occur in New Zealand. Although L. tumida has been reported for New South Wales, Victoria, and Tasmania, the identities of Australian plants comprising these records are largely unresolved, and require further investigation.
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