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Telopea 9(2): 2001 
Notes: Phaeographina atromaculata is characterised by conspicuous, black, open lirellae 
with conspicuous thalline margins, asci with one ascospore and the presence of 
norstictic acid. The species somewhat resembles P. nilgiriensis K. Singh & Awasthi 
(1978) but that species has closed lirellae and lacks norstictic acid. 
Etymology: The epithet atromaculata, is from the Latin atro, black and maculata, 
spotted, a reference to the conspicuous, black, scattered apothecia on the thallus. 
Phaeographina caesiopruinosa (Fee) Mull. Arg. (Fig. lc, 2c) 
(Muller 1887: 49) 
Artlionia caesiopruinosa Fee 
(Fee 1837: 36) 
Type: South America, s. loc., no collector (lecto G,fidc Wirth & Flale 1978). 
Thallus pale fawn to pale greenish fawn, thin, corticolous, surface smooth and shiny; 
apothecia lirelline, conspicuous, scattered or clustered, sessile, open, linear to oval or 
irregular in outline, 1-4 mm long, 0.3-0.6 mm wide, lacking a thalline margin; proper 
exciple laterally carbonised; hymenium 150-200 pm tall; disc black, densely white 
pruinose; ascospores elongate ellipsoid, pale brown (sometimes remaining hyaline), 
75-100 pm long, 16-22 pm wide, densely muriform. 
Chemistry: no lichen compounds found. 
Distribution: occurs in Brazil, Mexico and Dominica, and in Australia, in Queensland. 
Reported substrates in Australia are Acacia and Flindersia. 
C M/MOrcy. 
Fig.l. Cross-sections of lirellae and ascospores. a, Phaeographina arechavaletae; b, P. atromaculata; 
c, P. caesiopruinosa-, d, P. caesioradians; e, P. chrysenteron; f, P. exilior; lirellae: scale bar = 200 pm; 
ascospores: scale bar = 20 pm (a, d, e, f,); scale bar = 100 pm (b, c). 
