Authorship

SN2000 author citation	:			(Ach.) Stizenb.
Original name	:			(Ach.) Stizenb., 1865. Flora, Regensburg 48: 75.

Variants

Basionym

Opegrapha lithyrga var. confluens Ach. (1810)

Ref: [Kirk, P.M.] (ed.), present: [23 Dec 2014].

Accepted name	:	*Arthonia calcarea* (Turner ex Sm.) Ertz & Diederich (2009)		Ref: [Kirk, P.M.] (ed.), present: [23 Dec 2014].
Accepted name	:	*Opegrapha vulgata* var. vulgata (Ach.) Ach.		Ref: [Kirk, P.M.] (ed.), present: [23 Dec 2014].