Colquhounia and Burretiokentia, have six species each?
Colquhounia Colquhounia is a genus of about six species of evergreen or semi-evergreen shrubs or subshrubs in the family Lamiaceae, first described in 1822. They are native to the Himalaya and southwestern China south to Peninsular Malaysia.
Colura zoophaga Colura zoophaga is a species of epiphytic liverwort that is endemic to the African highlands, specifically parts of Kenya. It belongs to the genus "Colura", which has been hypothesized to be carnivorous as early as 1893. It is a recently described species that was the subject of the first scientific study aimed at investigating the allegations of carnivory in liverworts.