Artificial Reestablishment of Lichens. I. Morphological Interactions Between the Phycobionts of Different Lichens and the Mycobionts Cladonia Cristatella and Lecanora Chrysoleuca

SUMMARYSuccessful resyntheses were achieved between a mycobiont of Cladonia cristatella and 13 isolates of Trebouxia phycobionts. The same mycobiont did not establish symbiotic associations with 10 isolates of Pseudotrebouxia phycobionts or with the free-living alga Pleurastrum terrestre. The mycobiont Lecanora chrysoleuca formed soredia with five isolates of Pseudotrebouxia and with one isolate of Trebouxia. The synthesized squamules were identical in morphology to the natural squamules of C. cristatella—they produced mature pycnidia and short podetia with immature apothecia. Concentric bodies were seen in the hyphae of C. cristatella synthesized with the phycobionts of Cladonia boryi and Lecidea tumida.