Stems arborescent. Leaves grey-green, dull, 90 cm long, flat (not keeled) in section (opposing leaflets inserted at 180° on rachis), tomentum shedding as leaf expands. Petiole 15 cm long, glabrous, spinescent. Basal leaflets not gradually reducing to spines. Cataphylls narrowly triangular, soft, thinly sericeous or lacking tomentum, persistent. Pollen cones narrowly ovoid, orange, 30 cm long, 7.5 cm diam.; microsporophyll lamina firm, not dorsiventrally thickened, apical spine prominent, gradually raised. Seeds flattened-ovoid, 38 mm long, 34 mm wide; sarcotesta yellow; fibrous layer present; sclerotesta smooth. Spongy endocarp absent. |