FIGURE 2. Polystichum duyunense Li Bing Zhang, Xin Y.Miao & Chun X.Li.—A in Polystichum duyunense (subg. Haplopolystichum; Dryopteridaceae), a new cave fern from Guizhou, China

FIGURE 2. Polystichum duyunense Li Bing Zhang, Xin Y.Miao & Chun X.Li.—A. Outside view of the cave where the new species was discovered.—B. Habitat inside the cave.—C. Portion of adaxial surface of pinna.—D. Portion of abaxial surface of pinna.—E. Upper portion of abaxial surface of pinna.—F. Upper portion of adaxial surface of pinna.—G. Lower portion of petiole.