FIG. 16 in A revision of the indusiate scaly tree ferns (Cyatheaceae, Cyathea subgen. Alsophila sect. Alsophila) in Madagascar, the Comoros and the Seychelles

FIG. 16. — Cyathea costularis Bonap.: A, pinnules abaxially with a fragment of the costa, sori omitted from one pinnule; B, strongly indurated scale from the abaxial face of the base of the petiole; C, habit; D, scale from the lateral face of the upper half of the petiole; E, basal part of the leaf (from the petiole base up to the first pinna pair), dorsal view, lateral view in upper half, one pinna pruned; F, leaf scar and trunk surface; G, basal part of the leaf of a juvenile plant, ventral view, note the strongly reflexed decrescent pinnules and soft scales. A, B, D, E, Rakotondrainibe 3301 (P); C, uncollected, photograph at P; F, Janssen et al. 2489 (P); G, Janssen et al. 2486 (P). Scale bars: A, F, G, 1 cm; B, D, 0.5 cm; C, 1 m; E, 5 cm.