Calotropis gigantea (Wara) is one of the least concerned native plant in Sri Lanka. Because of its high pharmaceu tical application and other usage, this species has been over exploited and included in the Red list since ...

Exacum ritigalensis (Gentianaceae) (Sinhalese: Binara or Ginihiriya) has a potential to develop as a potted plant by improving the size of the flowers and inflorescence. The aim of the study was to establish an efficient ...