Vezda, A/ Poelt, J 1973: Zwei neue Arten der Flechtengattung Gyalideopsis, Pionierflechten auf schiefrigem Gestein. - Herzogia2: 469-477. [RLL List # 88 / Rec.# 19480] Keywords: GYALIDEOPSIS MODESTA / GYALIDEOPSIS ATERRIMA/ NEW TAXA/ TAXONOMY/ SAXICOLOUS
Abstract: Gyalideopsis modesta (from Steiermark in Austria) and G. aterrima (from Venezuela) are described as new species. Both are colonists on fresh surfaces of schists. A key to all known species of the genus is given. [New: Gyalideopsis modesta sp. nov., G. aterrima sp. nov.]