474 
Telopea 8(4): 2000 
(1891) and Muller (1891a, 1891b) but no specimens of the taxon were found in a recent 
examination by the author of Shirley and Bailey specimens from BRI and it has not 
been found among the many recent collections from Queensland in CANB. It is 
possible that the specimens examined were Phaeographina quassiicola (Fee) Mull. Arg., 
which has ascospores similar to those of P. caesiopruinosa. Phaeographina caesiopruinosa 
thus remains a New World species, confirmed by recent collections from Mexico 
(Wirth & Hale 1963) and Dominica (Wirth & Hale 1978). As var. caesiopruinosa appears 
to be absent from the Australian region and the Australian taxon is distinct from var. 
caesiopruinosa, in that it has an apically carbonised exciple and asci with one large 
ascospore, specific status is appropriate for the local Australian variety which is here 
named Phaeographina muelleri. The epithet commemorates the Swiss lichenologist Jean 
Muller of Argau (Mull. Arg.), 1826-1896, who described a large number of lichen taxa 
from Australia, including the present taxon. 
Acknowledgments 
The author is grateful to the Herbaria cited above for the loan of type and other 
specimens and to the National Herbarium of New South Wales (NSW) for permission 
to use the facilities of the Herbarium, for arranging the loan of the specimens cited 
above and to Ms. C. Wardrop (NSW) for the drawings. 
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