Trunk simple, slender, erect, usually 1 m. or less tall, reported to 2 m., to 15 mm. thick, rings 4-7 cm. apart, surface white-spotted or punctate and somewhat glaucous: leaves 3-4, minutely punctate, about 45-50 cm. long, pinnate, the pinnae 7-9 pairs alternate or subopposite; sheath 7-9 cm. long; petiole about 10 cm. long, nearly terete but lightly grooved toward base; pinnae at the middle of rachis 14-17 cm. long and 3-4 cm. broad, oblong-lanceolate and sigmoid-curved, abruptly short-acuminate, contracted to base, midrib strong as well as 2 side-nerves, lowest pai'r of pinnae lanceolate and long-acuminate and somewhat re-flexed, the upper pair confluent at base: spadix infrafoliar; staminate spadix once-branched or one or two of the rachillae forked near base, rachis 8-10 cm. long and not straightly continued through-the cluster, the angled slender rachillae about 15, laxly flowered,-10-18 cm. long; pistillate spadix with rachis 6-7 cm. long and not-continued, rachillae 7-12, simple or some of them forked near base, 4-8 cm. long, slender and flexuose.