distribution map
Phreatia rhomboglossa Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 322, fig. 1238
Phreatia rhomboglossa Schltr., floral analysis, drawing J.J. Smith, from Schlechter 14649
Phreatia rhomboglossa Schltr., herbarium sheet, Schlechter 14649 (isotype specimen BO)
Phreatia rhomboglossa Schltr., herbarium sheet, Schlechter 14649 (isotype specimen K), photo copyright the Board of Trustees of the Royal Botanic Gardens, Kew