138 



THE LICHEN FLORA OF QUEENSLAND, 



ecia golden or orange-coloured, biatorine, sessile, rather con- 

 M vex, when young crowned by the hypothallus, finally shining, 

 subglobose, or crowded and angular ; margin obtuse, pale 

 yellow, undulate ; spores variable, ellipsoid, at times sub- 

 globose, normally polari-bilocular, with or without an axial 

 septum, -008 — -012 x *005 — -007 m.m. Spermagonia 

 orange-yellow or red ; sterigmata of numerous spherical or 

 sub-cubical cells. 



Hab. — Stanthorpe and Toowoomba o i rocks ; v. erythrellum 

 Ach. found on basalt at Mt. Perry and Toowoomba, has an 

 areolate-diffract thallus, and dark orange apothecia, almost 

 immarginate. 



3. C. sanguinolentum, Krph. 



M. Syn. — Lecidea russula, Ach. 



Sub-tribe VII. — Pertusariei. 



Characters as in the genus below. 



IX. — Pertusaria, D.C. 



Thallus crust-iceous or cartilaginous-membranaceous, con- 

 tinuous, irregularly warted or nearly smooth. Gonidia as 

 in Lecanora. Apothecia verruciform, normally covered by 

 a cortical layer of thallus, enclosing one or several waxy- 

 gelatinous nuclei, enveloped in pale, membranaceous, 

 thalline perithecia ; ostiola usually depressed ; spores 1-8, 

 ellipsoid, largp, with thick spore coat, simple. Spermatia 

 acicular. Paraphyses usually intricate-ramose. Differs 

 from Lecanora in the clathrate-connected paraphyses, and 

 the spore membrane strongly stratose-inerassate. 



# Lecanorastrum, Mull. Arg. 



Disk of apothecia disclosed as in Lecanora. 



1. P. velata, Turn. 



Thallus milk-white or whitish, smooth or rugose-unequal, 

 rimulose, determinate, radiato-rugose or plicate towards the 



