]> Example of Names Published: Sphenophyllum svogense D.H. Storch & Tenchov, Z. Geol. Wiss. 6: 641. 1978 Botany Tenchov, Yanaki Georgiev Tenchov, Yanaki Georgiev Y. G. Tenchov Tenchov Yanaki Georgiev Tenchov 1931 2015