how is Brassia and Comesperma connected?
Comesperma Comesperma is a genus of shrubs, herbs and lianas in the family Polygalaceae. The genus is endemic to Australia. It was defined by the French botanist Jacques Labillardière in his 1806 work "Novae Hollandiae Plantarum Specimen". The genus name is derived from the Ancient Greek words "come" ("hair") and "sperma" ("seed"), and relates to the seeds bearing tufts of hair. The genus is distributed over southern Australia, particularly in the southwest of Western Australia, where 19 species are found. 24 species have been described.
Elatinaceae Elatinaceae is a family of flowering plants with ca 35 (to perhaps 50) species in two genera: "Elatine" and "Bergia". The "Elatine" are mostly aquatic herbs, and the "Bergia" are subshrubs to shrubs. "Elatine" species are widely distributed throughout the world from temperate to tropical zones, with its greatest diversity found in temperate zones. "Bergia" is found in temperate to tropical Eurasia and Africa, with two tropical and one tropical to temperate species in the Americas. The center for biodiversity of "Bergia" is the Old World tropics, and this is also the center for biodiversity for the family. Neither genus is found in arctic ecosystems.