Engel, J.J. 2021. Austral Hepaticae 52. A novel species of Pallavicinia S. Gray from New Zealand together with a new section

Arctoa (2021) 30: 170–174

doi: 10.15298/arctoa.30.18

Pallavicinia hypandra J.J.Engel, a member of the Pallaviciniaceae Mig., is described and illustrated. Androecia are mainly toward base of plant, the involucre of the androecium is often chamber-like, with the chamber completely surrounding the antheridium except for an ostiole at the summit, and antheridial stalks are 5-seriate. A new section is described for the species, which is endemic to New Zealand.