title: Petalostelma
text: # Petalostelma
  
  Petalostelma is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1885. They are native to South America.
  
  ## Species
  
  * Petalostelma bracteolatum (E.Fourn.) Fontella - Rio de Janeiro
  * Petalostelma calcaratum (Decne.) Fontella - Brazil
  * Petalostelma cearense Malme - Ceará
  * Petalostelma dardanoi Fontella - Pernambuco
  * Petalostelma martianum (Decne.) E.Fourn. - Brazil
  * Petalostelma robertii (S.Moore) Liede & Meve - Matto Grosso
  * Petalostelma sarcostemma (Lillo) Liede & Meve - Salta in Argentina, Chuquisaca in Bolivia
  