Interploidy gene flow via a 'pentaploid bridge' and ploidy reduction in Cystopteris fragilis fern complex (Cystopteridaceae: Polypodiales)

J Ptáček, L Ekrt, O Hornych, T Urfus - Plant Reproduction, 2023 - Springer
Key message Our results indicate the existence of interploidy gene flow in Cystopteris
fragilis, resulting in sexual triploid and diploid gametophytes from pentaploid parents …

Nuevas citas de helechos escasos en Galicia

E Martínez-Veiga, I Rodríguez-Buján - Nova Acta Científica …, 2023 - revistas.usc.gal
En este trabajo se aumenta y actualiza el conocimiento de la distribución de siete especies
de helechos raros y/o amenazados (Cystopteris diaphana (Bory) Blasdell, Cystopteris …

First report of Utah fragile fern (Cystopteris: Cystopteridaceae) from New Mexico, and new nomenclatural combinations in Cystopteris tenneseensis

MD Windham, KM Pryer - Journal of the Botanical Research Institute of …, 2022 - JSTOR
Two recently analyzed collections of Cystopteris from New Mexico represent the first records
of Utah fragile fern for the state. Our morphological reexamination of this taxon reveals a …