216 THE LICHEN FLORA OF QUEENSLAND, 



Cohort F. — Paraphyses connexo-ramose ; spores as in Opegrapha 

 transversely divided, loculi not lentiform, simple or 

 divided ; apothecia immersed. 



X. — Chiodecton, Ach. 

 * Euchiodecton. — Spores hyaline, loculi simple. 



1. C. effusum, Fee. 



Thallus and stromata white, somewhat resembling those 

 of C. spha?rale, Ach ; perithecium at base commonly in- 

 crassate, discrete, or here and there inferiorly appearing 

 M. scarcely as thick or less than the lamina ; spores narrow, 

 clavate fusiform, from the broad end gradually attenuate, 

 •03 — 037 x "0i»4 — *005 m.m , 4 locular, in outline re- 

 sembling those of C. farinaceum. 



Syn — Glyphia graphica, Fee. Mull. Arg. Graph. Fee. 



2. C. spluvrale, Ach 



Thallus white or pale sulphur coloured, eminently granular 

 or tu*>erculose ; stromata as yellow, sessile, peltate masses,, 

 1") — 1 -7 in m. in diameter, pricked over with black ostiola, 

 and sulphureo-pruinose. Apothecia not numerous in each 

 L. stroma ; a section of the verruca shows the apothecia 

 arising from a black internal torus ; spores 8, colourless, 

 witli iodine faintly cwrulescent, 3 septate, straight, linear- 

 fusiform, at botli ends acute ; paraphyses indistinct. 



H'ih. — Maroochie, on bark. 



3. C. farinaceum, Fee. 



r I hallus pulverulent, cinereous or glaucous or cinereo- 

 fuscescent ; stromata numerous, rounded, small, in shape 

 resembling those of C. spha?rale ; spores 8, 3-septate, 

 Sn. colourless, curved, clavate-fusiform, from below the broad 

 end gradually attenuate, with iodine not tinted; paraphyses 

 distinct, with iodine a reddish-brown. 



Hah. — Maroochie, on bark. 



