Description:
<p> It is concluded that Phegopteris Fée (Thelypteridaceae) is an apparently nomenclaturally superfluous name, because, when published, it included what is now established to be the type of Gymnocarpium Newman. Despite this, Phegopteris is a legitimate name as it has a legitimate basionym; it must, however, be cited as Phegopteris (Presl) Fée. The protologue of the basionym of Gymnocarpium dryopteris does not point to any specimen that could serve as type of that name, and hence of Gymnocarpium Newman (Athyriaceae). Moreover, there is no eligible specimen in the Linnaean collections in London, Stockholm or Paris. There is, however, a Burser specimen at Uppsala with a Bauhin name that is not cited in any Linnaean work. This specimen was determined by Linnaeus in his catalogue of the Burser herbarium as Polypodium dryopteris, the basionym of G. dryopteris, and this is designated as the lectotype. This lectotypification preserves existing usage of both the generic and specific names. </p>