BY JOHN SHIRLEY, B.SC. 



89 



Family IV. — Lichenacei, Nyl. 



Thallus variously coloured, rarely nigricant, not soft or 

 gelatinous. Gonidia usually with a cellular membrane. 

 Apothecia stipitate or lecanorine or peltate, or patellulate, 

 or pyrenocarpoid. 



Series I. — Epiconiodei, Nyl. 



Apothecia with spores collected into a black, powdery, or 

 crustaceous deciduous mass. Spores 8, in asci. 



Tribe I. — Caliciei, Nyl. 



Thallus crustaceous or obsolete, yellow, or navo-virescent. 

 or cinera scent or whitish. Apothecia cupuliform, constricted 

 below into a stipes or sessile. Leigh t Lich. Fl, G. Brit, 

 p. 38. 



I. — Calicium, Ach. 



Thallus granulose, powdery, squamulose or altogether evan- 

 escent. Apothecia black, stipitate or sub-sessile, capitula 

 globose or turbinate or cupular. Spores fuscous or nigri- 

 cant. Spermatia short, oblong. 



Leight, Lich. Fl. G. Brit. p. 39. 



1. C. hyperellum. Ach. v. validius, C K. 



Thallus pale yellowish, obscured by the dark colour of the 

 dead wood below, very tlrnly leprose, spreading thinly round 

 the apothecia, but indistinct between them, showing as a 

 netting with square meshes under the microscope. Apo- 



K thecia following the lines of the sligh f lv fissured or decayed 

 wood, shortly stipitate (-2 — -4 ni.ui.), dark-brown. Stipes 

 cylindrical ; apothecia cup-shaped, upper surface coated 

 with a dusty mass of ejected spores. Spores very small, 

 •004") m.m. long by -0025 m.m. thick, bilocular, contracted 

 at the septum, loculi hemispherical or nearly so. 



Hah — On dead wood, Brisbane Racecourse, Cabbage-tree 

 Creek, and Redbank Plains. Proc. Roy. Soc. Qd,, Vol, 

 V., Pt. I. 



" The stunted apothecium distinguishes from C. hyper- 

 ellum, and the yellowish thallus from C. curtum and C* 

 lenticulare " C. Knight, in litt. F. M. B. 



