Monographs Details: Saxofridericia duidae subsp. duidae
Authority: Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.
Description:Latin Diagnosis - Spiculae 20-22 mm longae; mensura maxima bracteolarum 5 X 14 mm, acumine ca. 0.5 mm longo, nervis 7, ineonspieuis.

Distribution and Ecology - Distribution: of frequent occurrence on open slopes, woodlands on the northern part of Cerro Duida. Not collected on the adjacent Cerro Huachamacari.

Discussion:Type: flowers yellow, frequent in woodland opposite ridge summit, Culebra Creek drainage at 1500 m alt., Cerro Duida, Terr. Amazonas, Venezuela, Nov 19, 1950, Maguire, Cowan & Wurdack 29561 (holotype NY). Paratype: open slopes near summit Culebra Peak, Cerro Duida, at 1800 m alt., April 3, 1949, Maguire & Maguire 29122