Cephalanthus angustifolius. A. Flowering branch. B. Stipule. C. Partial inflorescence. D. Flower. E. Hypanthium, style, and stigma. F. Corolla at anthesis. G. Ventral view of schizocarp. H. Dorsal view of schizocarp. I. Dorsal view of seed with aril. J. Subventral view of seed with aril. Drawn by Laura Simón.

 
 
  Part of: Romero MF, Gonzalez AM, Salas RM (2023) Sylvainia, a new monospecific genus within the subtribe Cephalanthinae (Rubiaceae, Naucleeae). Plant Ecology and Evolution 156(1): 85-111. https://doi.org/10.5091/plecevo.90423