Smith, J. F. & Carroll, C. L. 1997: A cladistic analysis of the tribe Episcieae (Gesneriaceae) based on ndhF sequences: origin of morphological characters. – Syst. Bot. 22: 713-724

Title	A cladistic analysis of the tribe Episcieae (Gesneriaceae) based on ndhF sequences: origin of morphological characters
Authorship	Smith, J. F. & Carroll, C. L.
Date published	1997
Volume	22
In journal	Syst. Bot.
Pages	713-724