FIG. 33. — A-G in A revision of the indusiate scaly tree ferns (Cyatheaceae, Cyathea subgen. Alsophila sect. Alsophila) in Madagascar, the Comoros and the Seychelles

FIG. 33. — A-G, Cyathea boivinii Mett. ex Kuhn var. andringitrensis Janssen & Rakotondr.; A, pinnule segments abaxially with a fragment of the costula; B, scale from the base of the petiole; C, basal part of the leaf (from the petiole base up to the second pinna pair), lateral view, the scales are caducous; D, leaf scars and trunk surface; E, habit of a crown with simultaneously unrolling young leaves; F, pinnules abaxially with a fragment of the costa, sori only partly indicated; G, habit, note the heap of dead leaves at the base of the trunk from the last simultaneous shedding; H-J, Cyathea boivinii var. bevolo Janssen & Rakotondr.; H, basal part of the leaf (petiole base up to the first pinna pair), lateral view; I, pinnule segments abaxially with a fragment of the costula; J, pinnules abaxially with a fragment of the costa, sori only partly indicated. A-C, F, Janssen et al. 2600 (P); D, Janssen et al. 2594 (P); E, G, uncollected, photographs at P; H-J, Perrier de la Bâthie 13508 (P). Scale bars: A, I, 0.1 cm; B, 0.5 cm; C, H, 5 cm; D, F, J, 1 cm; E, G, 1 m.