Dryopteris simplicissima (H. Christ) C. Chr. = Thelypteris concinna (Willd.) Ching
English:
simplicissimus,-a,-um;

https://archive.org/stream/#page/293/mode/2up
homotypic synonyms:
Aspidium simplicissimum H. Christ;

protologue: Index Filic. 293: 293 (1905)

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