FIGURE 1 in Three new species of the fern genus Pteridrys (Tectariaceae) from Vietnam

FIGURE 1. Field images of Pteridrys costulalis Li Bing Zhang, Liang Zhang, N.T.Lu & X.M.Zhou, Pteridrys hanoiensis Li Bing Zhang, Liang Zhang, N.T.Lu & X.M.Zhou, and P. vietnamensis Li Bing Zhang, Liang Zhang, N.T.Lu & X.M.Zhou. A–D. Pteridrys costulalis:— A. Portion of lamina.—B. Basal pairs of pinnae, showing basal basiscopic pinnules of basal pinnae strongly elongate.—C. Rhizome and basal stipe.—D. Portion of pinna showing venation and sori. E & F. Pteridrys hanoiensis:—E. Portion of lamina.—F. Portion of pinna showing venation and sori. G & H. Pteridrys vietnamensis:—G. Portion of rachis with portions of pinnae.—H. Portions of basal pinnae showing basal basiscopic pinnules of basal pinnae strongly elongate.