FIG. 5. — Cyathea decrescens Mett. ex Kuhn var. decrescens: A, pinnae abaxially with a fragment of the rachis, sori only partly indicated; B, habit; C, pinnules abaxially with a fragment of the costa; D, pinnule fragment abaxially with sori, note the dense indument of patent, hyaline, multicellular hairs on the costula, veins and indusia; E, scale from the base of the petiole (left: lateral view, not to scale; right: dorsal view); F, basal part of the leaf (from the petiole base up to the first several pinna pairs), lateral view, note gradual transition of the decrescent pinnae into aphlebia; G, a multicellular, hyaline hair, part of this taxon's typical indument; H, leaf scars and trunk surface. A, C, F, Janssen et al. 2541 (P); B, uncollected, photograph at P; D, E, G, Cours 4505 (P); H, Janssen et al. 2578 (P). Scale bars: A, C, H, 1 cm; B, 1 m; D, E, 0.1 cm; F, 5 cm; G, 0.1 mm.