Diagnose: —foliis caulinis subulato-acuminatis, spicis plurimis breviter peduneulalis divaricatis multifloris compressis, floribus distichis imbricatis, bracteis acutis argenteo- lepidotis perigonii interioris tubum aequantibus.—Columbia. Folia inferiora desunt. Caulis obtectus vaginis angustis in folia brevia subulata pilosiuscula abeuntibus. Bracteas ad basin spicarum ovato-lanceolatae, vix striatse, subulato-acutse, 1-1.5 pollieares, erectae, rigidae, extus lepidoto-canescentes. Spicae 1 J-2-pollicares, verticaliter compress®, 6 lin. latse, basi in pedunculum brevem attenuate, 12-15-florae. Bracteee sub floribus singulis complicate, semipollicares, arete imbricatee, acutiusculae. Perigonium exterius triquetrum, rigide glumaceum, bractea vix brevius, diphyllum, foliolo altero bicarinato (e duobus connatis coustante), altero convexo; interius tenue, tubo bracteam sequante, laciniis 3 oblongo-lanceolatis, minus fugacibus quam in plerisque speciebus.Translated by E.J.Gouda from: Bentham 1846. (protologue) The botany of the voyage of H. M. S. Sulphur, under the command of Captain Sir Edward Belcher, during the years 1836-42 .