Flechten aus Mitteleuropa
By: Lettau
Published: 1941
Place of publication: Dahlem bei Berlin
Language: ger
Number of pages: 262
Notes: Repertorium specierum novarum regni vegetabilis, Beifefte/Band 119, 4, p. 203-242, 243-262, 1941.

Includes no. 383 Allarthonia patellulata to no. 483 Roccella canariensis; no. 484 Lecanactis abietina to no. 542 Racodium rupestre.