Renner, M.A.M.,
P.J. de Lange & D.S. Glenny. 2021. A
synopsis of Aotearoa/New Zealand Lejeunea
(Lejeuneaceae: Jungermanniopsida)
and new species in the Lejeunea epiphylla Colenso complex
Arctoa (2021) 30: 187–212
doi: 10.15298/arctoa.30.20
We present a summary of the Aotearoa/New Zealand Lejeunea
flora in a synopsis covering 21 species, 19 of which have been, or are
here, formally described and two tag-named. Four species are described as new (L.
amphinephea M.A.M.Renner,
L. demissa M.A.M.Renner,
L. perichymidia M.A.M.Renner
and L. thalassoides M.A.M.Renner
& Glenny) all have been previously treated as a
complex under the illegitimate name Lejeunea
epiphylla Colenso. These four species exhibit
complicated patterns of morphological variation and overlap in both size and
shape as has been quantified in other liverwort species complexes. Lejeunea hawaikiana is
proposed as a new synonym of L. apiculata,
while Lejeunea gracilipes
is retained at species rank. The 21 species comprise nearly the entire Aotearoa/New Zealand Lejeunea
diversity, but at least two other entities not encompassed by our synopsis
are known from the