Gonatopus angustus N.E.Br.

Tuber depressed 3-5 in. in diam. LEAF solitary, erect, 2-3 ft. high, 3-4-pinnate in the adult state, glabrous; lowest branches 12-15 in. long, 7-8 in. broad; leaflets 11/2 -3in. long, 7-15 lin. broad, varying from lanceolate to elliptic-lanceolate, acuminate, rounded or cuneate at the base, shortly petiolulate or subsessile, not decurrent; petiole stout, with a swollen articulation at the middle, green, transversely banded with blackish-green; in juvenile plants the leaf is simply pinnate, with a few large elliptic or suborbicular shortly cuspidate petiolulate leaflets. INFLORESCENCE: Peduncles 1-2 to a tuber, produced with the leaf, 15–16 in. long, erect, moderately stout, glabrous, coloured like the petiole and, with the latter, enclosed at the base by 2 or 3 membranous acute sheaths. Spathe glabrous, dull green, striate with dark green outside, pale greenish-yellow inside; tube about 1 in. long, ovoid or subglobose; limb 5-8 in. long, 1 1/5 in. broad, oblong, acuminate into a long subulate point, expanded, recurved or revolute. Spadix sessile; female part about 3/4 in. long and about 1/2 in. thick; male 2 1/4-3 1/2 in. long, about 5 lin. thick, constricted at the base, with the lowest flowers more or less imperfect. Perianth-segments of both male and female flowers oblong, truncate at the triangular apex. Ovary ovoid, narrowed into a short style, 2-celled; stigma large, peltate, just exserted from the perianth, pea-green. Stamens in the male flowers 4, connate around an abortive ovary, entirely absent in the female flowers; anthers subquadrate, white. INFLORESCENCE: Fruit not seen.