"Schloraine&colon; An Indole Alkaloid of Alstonia scholaris". Scholarine is an alkaloid isolated initially from Alstonia scholaris by Banerji and Siddhanta. The derivative "N"-Formylscholarine has been isolated from the fruit pods of "Alstonia scholaris". There was a garden of Alstonia scholaris tree, one of the Translators in Akabari Darbar. The provincial tree is commonly called blackboard tree or devil's tree ("Alstonia scholaris"). The type species "Alstonia scholaris" (L.) R.Br. "Alstonia scholaris" is a glabrous tree and grows up to tall. "Alstonia scholaris" is the state tree of West Bengal, India.