A COMPARATIVE STUDY OF SOME MYCOBIONTS OF THE GENUS CLADONIA

Donald H.Pfister
Farlow Reference Library and Herbarium of Cryptogamic Botany Harvard University Herbaria , Cambridge,Massachuusetts 02138 USA

ABSTRACT : Beginning with ascospores, cultures of 15 species of Cladonia were establised. As- cospores germinated within 12 hours for all species. Growth was rapid for the first 7-15 days but subcqucntly slowed. Isolatcs developed distinctive morphologies and pigmentations as they aged. It is possible to distinguish isolates based on growth pa -tterns, pigmentation of the colonies and of the medium on which they were grown. The routine culture of species of Cladonia might add useful characters when atte -mpting to distinguish members of this genus.

KEY WORDS : Cladonia ; mycobionts; cultures