Revisiting the taxonomy of Exacum courtallense (Gentianaceae) and recognizing E. courtallense var. laxiflorum at the species rank

Morphological, phenological and ecological evidences support the exclusion ofExacum courtallense var. laxiflorum Gamble (synonym: E. courtallense var. bonaccordense M. Mohanan) from E. courtallense Arn. resulting in the establishment of a new species Exacum laxiflorum (Gamble) Geethakumary, Deepu, Kissling & Pandurangan.

Automated summary

Based on morphological, phenological, and ecological evidences, a new species Exacum laxiflorum is established, excluding Exacum courtallense var. laxiflorum from E. courtallense.