Which genus has more species, Wahlenbergia or Horminum?
Wahlenbergia Wahlenbergia is a genus of between 150–270 species of flowering plants in the family Campanulaceae, with a cosmopolitan distribution except for North America; the highest species diversity is in Africa and Australasia. "Wahlenbergia" species have dispersed widely, even to oceanic islands, and there are four species known from the island of Saint Helena, including the now extinct species "W. roxburghii". The genus was named after Göran Wahlenberg (a Swedish botanist who taught at Uppsala University) by German botanist H. A. Schrader (Heinrich Schrader), in 1814.
Blasia Blasia pusilla is the only species in the liverwort genus Blasia. It is distinguished from "Cavicularia" by the presence of a collar around the base of the sporophyte capsule, and a scattered arrangement of sperm-producing antheridia. Rhizoids and gemmae of "Blasia" may be parasitized by the mushroom "Blasiphalia".