170 Froceedhif/s of the Hoi/al Society of Victoria. 



colourless, ellipsoid oi- ovate -OOo to 'OOG X ■001 5 to 'OO-i mm., 

 bilocular or placodine or uuiseptate, with a locale in each 

 cell, epispore thick. Paraphyses numerous, distinct. 



Hab. on dead wood or hark of tree. Lakes Entrance. 



This species is remarkable for the form of its spores. All 

 the genus hitherto described have spherical simple spores. 



The var. rubens reported hy me (Trans. Lin. Soc), having 

 been since found in larger quantity, proves to be scarcely 

 more than a juvenile form. 



4, G. (jracilenta, Ach. var. leucocephala, Wilson. 



Tliallus green, conglomerato leprose. Apothecia with 

 stipe long and tender (lo to 2"o x i mm.), fusco nigricant, 

 opacpie, and ca|)itnlum small, sporal mass white, irregularly 

 clothing the capitulum and the upper part of the stipe. 

 Spores colourless, minute, sphieroidal, "002 to -003 mm. 

 diameter. 



Hab. on earth, Fernshawe, Mrs. Martin, March 1891. 



Genus -i.— Thachyija, Fr. pr. p. Ny], 



Tludlus thin, granulose or subleprose, or foreign. Apo- 

 thecia 'black, sessile, cupulitorni, open, sporal mass black. 

 .S})ores nigricant or fuscous black, ellipsoid or oblong, uni- 

 septate, rarely ])luriseptate. 



1. T. leauiorina, Wilson. 



Tludlus cinerascent, verruculoso leprose, passim verrucoso 

 sorediate, gonidia moderate and abundant. Apothecia small 

 (to -5 mm. broad), crowded, elevated in thalline receptacles. 

 Sporal mass black, abundant, often much protruded and 

 connecting the apothecia Spores fusco nigricant or nigres- 

 cent, or nearly colourless, elli|)soid, uniseptate, Dl to '02 

 X -OOG to -01 nim. 



Hab. on old eucalj'ptus fences, Cheltenham, Yalla-y-poora, 

 near Streatham. 



This plant bears at first sight a great resemblance to 

 Lecanoiu atra. 



2. T. viridilocularis, Wilson. 



Thallus obscurely cinerascent. Apothecia black, some- 

 what elevated, '3 mm. high, -3 mm. broad. Sporal mass 



