Identificazione:
Trunks 4.7-6 m (15-20 ft.) tall, 15 cm in diameter. Stypes persistent, spiny (spines 3-4 mm long at base), 30-40 cm long, 1-2 cm across, greenish, purplish towards the base, fronds tripinnatifid to tripinnate; pinnae 45-60 cm long, the lower pinnae much shortened (15-20 cm long); pinnules 8-10 cm long, shor-stalked, the margins serrate; veins usually once-forked (sometimes in groups of 3 or 4); upper surface hispid alng rachis, rachillae and costae; lower surface glabrous with small thin ovate or irregular scales along costae and veins; stipe scales brown, shiny, 20 mm long, 1.5 mm wide, margins dull. Sori round, large, in rows on either side of casta; indusia thin, membranceous, globose, fugacious.
Informazioni generali:
Observation
Distribuzione:
Lavori in corso
Informazioni di distribuzione attualmente in fase di revisione!