Place of publication:
Feddes Repert. Spec. Nov. Regni Veg. 53:15. 1944
Comment:
lack of valid publication by Chouard (in Bull. Soc. Bot. France 81:625. 1934) verified from original literature (by J. McNeill & W. Greuter, pers. comm. via e-mail on 22 April 2009)