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Family :

Dipteridaceae

Division :

Ptedophytes

Description


Medium-sized to large terrestrial, epiphytic or epilithic fern. Rhizome stout, robust, covered with dark stiff hard bristles. Stipe stout smooth, erect, longer than the lamina, grooved on the upper surface, polished black in colour. Fronds large, fan-shaped. Lamina cut to the base at equal divisions, each half divided into several long linear lobes. Veins dichotomously branched, the first vein dichotomously branched and divides the lamina into two equal halves. Sori small, round, exindusiate, irregularly scatter, perispore thin, surface smooth or sometimes rugose.