Delgado, M. N.; Azevedo, A. A.; Silva, L. C.; Valente, G. E.; Kasuya, M. C. M. COMPARATIVE ANATOMY OF CALOLISIANTHUS SPECIES (GENTIANACEAE – HELIEAE) FROM BRAZIL: TAXONOMIC ASPECTS. Edinburgh J. Bot. 2011, 68 (1), 139-155. https://doi.org/10.1017/S0960428610000284.