Scanning electron micrographs of acetolyzed pollen of two collections of sublophate echinolophate Gymnanthemum capense (A. Spreng.) J. C. Manning & N. Swelankomo. A Polar view B Equatorial view C Lateral view D Fractured grain structure of exine surfaces E Fractured grain showing spine construction. (A–CSchlechter 6644).

 
 
  Part of: Robinson H, Skvarla JJ, Funk VA (2016) New and resurrected Hawaiian species of pilo (Coprosma, Rubiaceae) from the island of Maui. PhytoKeys 60: 33-48. https://doi.org/10.3897/phytokeys.60.6734