FIG. 26. — Cyathea longispina Janssen & Rakotondr.: A, pinnae with a fragment of the rachis (above: adaxially; below: abaxially, sori only partly indicated); B, habit; C, proximal part of a pinnule abaxially (at the junction with the costa), note the scaly indument on the costa and costula; D, pinnules abaxially with a fragment of the costa; E, scale from the abaxial face of the costa, note the long apical spine; F, pinnule apex adaxially with straight multicellular hairs on the costula and crispate catenate hairs on the veins, both types of hairs two-fold magnified on the left; G, scale from the base of the petiole; H, scale from the upper half of the petiole; I, basal part of the leaf (from the petiole base up to the second pinna pair), dorsal view, pinnae pruned away on one side; J, leaf scars and trunk surface. A, C-J, Janssen et al. 2916 (P); B, Janssen et al. 2908 (P). Scale bars: A, I, 5 cm; B, 1 m; C, E, F, 0.1 cm; D, J, 1 cm; G, H, 0.5 cm.