The morphology of the skeleton of the various species of the genus Solanderia was studied by scanning electron microscopy. This allowed the listing of synonymies, and the number of valid species was reduced from 13 to 6. Keys and a comparison table have been established for species identification.
The following taxa are discussed: Solanderia dendritica, S. fusca, S. gracilis, S. labyrinthica, S. leuckarti, S. misakinensis, S. procumbens, S. rugosa, and S. secunda).Descriptors: SOLANDERIA DENDRITICA; SOLANDERIA FUSCA; SOLANDERIA GRACILIS; SOLANDERIA LABYRINTHICA; SOLANDERIA LEUCKARTI; SOLANDERIA MISAKINENSIS; SOLANDERIA PROCUMBENS; SOLANDERIA RUGOSA; SOLANDERIA SECUNDAfigs 1-2, pls 1-14, tab. 1.