Which is a genus of more species, Dryopteris or Alonsoa?
Alonsoa Alonsoa (Mask flower) is a genus of 12 species of flowering plants in the family Scrophulariaceae, the figwort family. The genus includes both herbaceous and shrubby species.
Ceratopteris richardii Ceratopteris richardii is a fern species belonging to the genus Ceratopteris, one of only two genera of the "Ceratopteridoideae" subfamily of the Pteridaceae. It is one of several genera of ferns adapted to an aquatic existence. "C. richardii" was previously regarded as being part of the species "Ceratopteris thalictroides". This particular species is of special scientific interest because a patented strain has been developed as a scientific aid and teaching tool in biology, called "C-fern."