Schneider G.
(1979):
Die Flechtengattung Psora sensu Zahlbruckner,
Bibl. Lichenol.,
13: 1-309
This contribution considers all taxa included in the genus Psora by ZAHLBRUCKNER in his Catalogus Lichenum Universalis as well as those subsequently newly described or transferred to the genus. The general part gives a comparative account of the features of the morphology and anatomy of the species, and assesses the importance of these characters in the basic systematica of the genus. In the structure of the thallus the structure of the cortex arrangement of the algae and the presence and form of …
Read more...
