B. Krzewicka, M. A. García, S. D. Johansen, L. Sancho and M. P. Martín 2009: Morphological and nuclear ribosomal DNA data support distinguishing two new species of Umbilicaria (Umbilicariaceae, Ascomycota) from Europe. - Lichenologist41(6): 631-648. [RLL List # 217 / Rec.# 31090] Keywords: UMBILICARIA/ EUROPE/ KEY/ NEW TAXA/ ITS/ LSU RDNA/ MOLECULAR ANALYSIS
Abstract: [New: Umbilicaria iberica Sancho & Krzewicka sp. nov. (Spain) and U. maculata Krzewicka, M. P. Martín & M. A. García sp. nov. (Poland). The first new species is close to U. polyphylla, and the other is similar to U. cylindrica.]