Monographs Details: Irlbachia pumila (Benth.) Maguire
Authority: Maguire, Bassett. 1978. The botany of the Guayana Highland--part XI. Mem. New York Bot. Gard. 32: 1-391.
Description:Distribution and Ecology - Distribution. Savannas and wet woodland, Alto Orinoco and Río Guainía, Venezuela. VENEZUELA. Territorio Amazonas: San Carlos, Spruce sn (holotype K); ad flumina Casiquiari, Vasiva et Pacimoni, 1853-54, R. Spruce 2950 (NY); flowers white, frequent in woodland between Savannas 1 and 2, along trail to Yapacana gold mine, northwest base of Cerro Yapacana, 150 m elev, 17 Mar 1953, Maguire & Wurdack 34502 (NY); flowers white, occasional in riverine forest, Cerro Cucuy, 100-300 m, Río Negro, 10 Apr 1953, Maguire & Wurdack 34966 (NY); small herb with white flowers, frequent in clearing, vicinity San Custodio, Río Yatua, 140 m elev, lowland forest, 5 Feb 1954, Maguire, Wurdack & Bunting 37519 (NY); flores blancas, on rocks, Caño Caranaben, Río Orinoco, 10 km below San Fernando de Atabapo, 150 m elev, 11 May 1954, Level 53 (NY).

Discussion:6. Irlbachia pumila (Bentham) Maguire, comb nov Fig 82A-L, 83. Lisianthus pumila Bentham, Jour. Bot. Kew Misc. 6: 200. 1854. Brachycodon pumila (Bentham) Progel, Mart. Fl. Bras. 6(1): 230. 1865. Pagaea pumila (Bentham) Gilg, Engler & Prantl Nat. Pflanzenf. 4, abt. 2: 102, f 45. 1895. Type. In inundated woods ofthe Rio Negro near San Carlos [Territorio Amazonas, Venezuela], Apr 1853, R. Spruce sn (holotype presumably at K). Irlbachia pumila is well marked by its narrowly linear leaves. It is rather narrowly confined to low altitude areas of the Alto Río Orinoco and Alto Río Negro-Guainfa.
Distribution:Venezuela South America|