Label source: 76. Frequent on the Rio Negro and ascending high into the mountains. Serra de Sao Gabriel.x0Dx0Ax0Dx0ASource: Museum entry book 1847-55, p 209.: Height ( including some of the roots 5ft 6 in). Trunk 8 inches in diameter from base to middle, wherei, t begins to swell out; reaches its greatest thickness of 20in at 10ft 6 in from apex. Fronds few( about 7) 19 feet long; sheaths scarcely any. Spadices 22 inches long.