Macrocalyx is a taxonomic plant genus synonym that may refer to:

References edit

  1. ^ "genus Megistostegium". Germplasm Resources Information Network (GRIN) online database. Retrieved 17 April 2017.
  2. ^ "Psychotria". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew. Retrieved 17 April 2017.