Repert. Spec. Nov. Regni Veg. 49: 165 (1940).

Basionym: Cladonia tenuis subsp. subtenuis Abbayes in Bull. Soc. Sci. Bretagne 16, Fasc. Hors Sér. 2: 106 (1939).

Type locality: USA, Florida, Seminole Co., near Sanford, S. Rapp in Keissler, Kryptog. Exs. Mus. Vindob. 3066 (H - lectotype; UPS - isolectotype). Lectotypification by Ahti (1961).