Author: Jan Scholten
Name: from the Greek for "fold" and the Latin for "berry".
Region: New Guinea, Solomon Islands. Taxonomy: close to Ptychosperma, only differentiated by the seed shape and endocarp type.
Botany: palm, grow to 15 m; habitat rocky or mountainous rain forest, in rain forest low lands, alongside rivers, they are not particular to soil type; trunks ± 25 cm, solitary, ringed, crownshafted; leaves pinnate, in long sheaths, usually covered in scales and hairs, as is the short petiole; rachis ridged, flattened on the bottom, covered in hairy tomentum; leaflets unusual, once-folded, toothed, twisting upwards in their bottom half, bears scales and a prominent midrib, with tomentose margins, lacking visible veinlets; inflorescence emerges below the crownshaft, stiff, horizontal, branched to three orders, covered in scales; peduncle short, thick; prophyll tubular, beaked, tomentose, the long rachis bears numerous short rachillae which are often Z-shaped; rachillae bear short round bracts subtending triads of large flowers throughout; staminate flowers are more or less asymmetrical and bear three distinct, hairy sepals, and three ovate, scaly petals, up to 100 stamens, with short filaments, and elongated, apically notched, deeply bifid anthers; exine is finely reticulate and tectate; pistilode is bottle-shaped and has pointed tips; pistillate flowers smaller, ovoid, occasionally hairy, sepals and petals are imbricate, latter bearing scales, three united staminodes forming a small cup; gynoecium ovoid, uniovulate; pendulous stigma three lobes; fruit egg-shaped, wrinkly exterior, divided into lobed segments when dry, and mature at orange or red; epicarp fibrous, the mesocarp fleshy, covering a five-lobed seed, resembling the dry fruit.