Tapeinostemon is a genus of flowering plants in the family Gentianaceae, native to northern South America. It has microreticulate pollen grains, supporting its placement in the tribe Saccifolieae.
Species Currently accepted species include:
Tapeinostemon adulans J.R.Grant Tapeinostemon breweri Steyerm. & Maguire Tapeinostemon jauaensis Steyerm. & Maguire Tapeinostemon longiflorus Maguire & Steyerm. Tapeinostemon rugosus Maguire & Steyerm. Tapeinostemon sessiliflorus (Humb. & Bonpl. ex Schult.) Pruski & S.F.Sm. Tapeinostemon spenneroides Benth. Tapeinostemon zamoranus Steyerm.
References