Riccardia gynandra (Aneuraceae, Marchantiophyta) a new species from Rakiura, New Zealand, similar to R. crassa

David Glenny

doi:10.7751/telopea21860

Authors

David Glenny Landcare Research, Lincoln.

DOI:

https://doi.org/10.7751/telopea21860

Keywords:

new species, endomycorrhiza, monoicous, sympodial, endemic, liverwort, Riccardia crassa, Riccardia tenerrima.

Abstract

Riccardia gynandra Glenny is described from a lowland site on Stewart Island. It resembles R. crassa (Schwaegr.) C.Massal. in size and branching but has a smooth epidermis and is monoicous. It has unusual features in the genus: gametangia are ventro-lateral on the thallus margins and male and female branches are sometimes sympodial (together on the same branch). Male branches are variable in their orientation, between inclined slightly downwards to oriented downward at 90° to the ventral thallus surface.

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