Tuesday, December 29, 2020

[Botany • 2020] Polystichum asia-minoris (Dryopteridaceae) • A New Fern from Kastamonu, Turkey

Polystichum asia-minoris Tunçkol & Li-Bing Zhang

in Tunçkol, Yaşayacak, ... et Zhang, 2020.


A new fern of Polystichum (Dryopteridaceae), Polystichum asia-minoris, is described and illustrated from Horma Canyon in the borders of Küre Mountains National Park in Kastamonu Province located in the north of Turkey. Polystichum asia-minoris is distinguishable from the morphologically similar P. obliquum by having pinnae abaxially densely covered with broad-type microscales. It is not certain to which lineage the new species closely allied. The new species has extremely narrow distribution and is classified as Critically Endangered (CR) following IUCN Red List Criteria.

Keywords: IUCN Red List, Polystichum obliquum, Pteridophytes

Bilge Tunçkol, Hasan Yaşayacak, Zhen-Long Liang, Necmi Aksoy and Li-Bing Zhang. 2020. Polystichum asiae-minoris (Dryopteridaceae), A New Fern from Kastamonu, Turkey. Phytotaxa. 447(4); 293-300. DOI: 10.11646/phytotaxa.447.4.8