The present disclosure relates to methods and compositions for in vitro cultivation of species of Swertia, e.g. Swertia chirata (Ham.). The disclosure provides culture media comprising Murashige and Skoog (MS) basal culture medium, plant hormones preferably selected from the group consisting of benzyladenine...http://www.google.com/patents/US7238527?utm_source=gb-gplus-sharePatent US7238527 - Methods and compositions for rapid in vitro propagation of Swertia chirata 
