Dryopteris paucisora, Copeland, 1911

Zhang, Li-Bing, 2012, Reducing the fern genus Dryopsis to Dryopteris and the systematics and nomenclature of Dryopteris subgenus Erythrovariae section Dryopsis (Dryopteridaceae), Phytotaxa 71 (1), pp. 17-27 : 19

3. Laminae to 15 cm long, a bud present on the rachis .......................................................................... 16. D. paucisora

- Laminae longer; no buds on rachis ............................................................................................................................ 4.

4. Scales on lower surface of pinna rachises, at least the smaller ones, bullate at their bases ....................................... 5.

- Scales on lower surface of costae not distinctly bullate at their bases ....................................................................... 9.

5. Bullate scales also present on costules of pinna lobes, at least on costules of pinna lobes of lower pinnae .............. 6.

- Bullate scales lacking on costules of pinna lobes ....................................................................................................... 7.