Query: Monotypic Saxifragales genera
Relevant documents:
Cynomorium
Langeria
Peridiscus
Astilboides
Diamorpha
Afrovivella
Reidmorania
Sinowilsonia
Tellima
Darmera
Bensoniella
Tetracarpaea
Saxifragopsis
Tanakaea
Saniculiphyllum
Ostrearia
Noahdendron