Template:Ball, 1878b
- Ball, J. 1878. Spicilegium Florae Maroccanae. Parts III. Containing descriptions of Genera and Species, Umbelliferae to Gentianeae. Journal of the Linnean Society. Botany 16(95): 473–568, pl. XXI–XXVII. DOI: 10.1111/j.1095-8339.1878.tb00104.x BHL