FIGURE 4 in Serpocaulon tayronae (Polypodiaceae), a new species from the Sierra Nevada de Santa Marta, Colombia

FIGURE 4. Comparison between the rhizome scales of similar species of Polypodium and Serpocaulon. A. Serpocaulon eleutherophlebium (from Rodríguez et al 5970, COL). B. S. tayronae (from the type Smith 1025, BR), C. S. obscurinervium (from the type Hagemann & Leist 1898 (PSO). D. S. patentissimum (from Arbeláez 325, HUA). E. Polypodium colpodes var. oligomerum (from Tonduz 8804, BR). F. P. tenuifolium (from Wright 1030, NHN). G. P. dulce (from Tückheim 4047, BR). H. P. flagellare (from the type Biolley 2671, BR). I. P. plesiosorum (from Pringle 3352, BR). Scale bar: A–D (0.5 mm), E–I (1 mm).