FIG. 34. — A-F, H-L in A revision of the indusiate scaly tree ferns (Cyatheaceae, Cyathea subgen. Alsophila sect. Alsophila) in Madagascar, the Comoros and the Seychelles

FIG. 34. — A-F, H-L, Cyathea boivinii Mett. ex Kuhn var. hildebrandtii; A, pinnules abaxially with a fragment of the costa, common form, sori only partly indicated; B, pinnules abaxially with a fragment of the costa, form with broader pinnule segments, sori only partly indicated; C, pinnule segments abaxially with a fragment of the costula, form with broader pinnule segments; D, E, pinnule segments abaxially with a fragment of the costula, common forms; F, habit; H, sori, common form with long receptacles and cup-shaped indusia with entire rims; I, scales from the base of the petiole, form with narrow, blackish scales; J, scales from the base of the petiole, common form; K, basal part of the leaf (from the petiole base up to the first pinna pair), lateral view, one half of the petiole pruned away by longitudinal section, note the presence of a pair of reduced pinnae at about 20 cm above the base of the petiole; L, leaf scars and trunk surface; G, C. boivinii var. parahildebrandtii Janssen & Rakotondr., mature sori with dehiscing indusia. A, D, H, J, K, Rakotondrainibe 1666 (P); B, C, Rakotondrainibe 4709 (P); E, I, Janssen et al. 2956 (P); F, Janssen et al. 2442 (P); G, Rakotondrainibe et al. 6730 (P); L, Janssen et al. 2464 (P). Scale bars: A, B, L, 1 cm; C-E, G, H, 0.1 cm; F, 1 m; I, J, 0.5 cm; K, 5 cm.