THE LICHEN FLORA OF QUEENSLAND, 



greenish-yellow, or straw-coloured or whitish, polished, fre- 

 quently black-punctate or soredi f 'erous, below brownish and 

 black-fibrillose ; primary laciniai appressed, s ; nuate-rotun- 

 date-lobate, secondary ones linear-lacinulate, overlapping 

 and incurved, lacinulas with jaggel edges ; eentre of thallus 

 . granulate. Apothecia confluent or crowded, sometimes 

 abortive, spadiceous or fuscous ; margin thin, inflexed. 

 Spores 8, colourless, ellipsoid, simple, "008 — *01 x -006 

 m.m., paraphyses not separate. Spermatia somewhat double 

 spindle-shaped, -005— '006 x 0006— '0007 m.m. 



Piffers from P. austro-africana in being black-fibrillose 

 beneath, latter palish beneath and much cut up into lobes. 



Hub. — On rocks, Maroochie and Brisbane Valley. 



P. Mougeotii Schar. (Medulla K yellow then red), 



Thallus rosette-shaped, appressed to the stone below in all 

 its parts, pale yellow or ashy yellow or grey green, beneath 

 black and rhizinose. Lac'in're contiguous, but not over- 

 lapping, narrow-multifid, somewhat convex, sulphureo- 

 sorediate 1 — 2 m.m. wide, with crenate lateral margins, 

 and lacinulfe terminating in short blunt teeth, dark and 

 sub-dilTract in the centre, paler and yellower in the rays. 

 Apothecia numerous, to 2*5 m.m. in diameter ; disk dull 

 red, plano-concave ; margin pale grey, erect, diffract in 

 small segments giving it a moniliform appearance. Spores 

 8, in cylindrical asci, simple, oblong-ovate or slightly curved, 

 colourless, -007— "008 x -003— -0035 m.m. Paraphyses 

 matted. 



Syn. — P. conspersa v. Mougeotii. 



Hub. — On rocks, Helidon, 17-Mile Rocks, and Ashgrove, 



P. amplexula Stirton. (K — C reddish.) 



Like P. austro-africana but less, and closely appressed. 

 Thallus golden-yellow or dull yellow-green, with small 

 lacinula? and often isidioid ; blackish beneath in all specimens 

 n. examined. Spores 8, colourless, ellipsoid, simple, '008 — 

 •01 x -005 — -006 m.m. ; paraphyses thick, short, truncate. 



