Phymatosorus grossus (Polypodiaceae) in Mexico and comments on other non-native pteridobionts

Phymatosorus grossus (Langsd. & Fisch.) Brownlie is reported for Mexico for the first time. It is an exotic fern that presents characteristics typical of invasive species. We give a morphological description, ecological features and distribution of the species. We also include a list of othe...

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