BY JOHN SHIRLEY, R.SC. 



97 



1. C. aggregata, Sw. (K — C — ) 



Podetia densely tufted, smooth, glabrous, shining, rigid, 

 slender or stout, and branched, looking like a miniature, 

 leafless, dichotomously branched thorny shrub, pale yellow- 

 brown, darker below : lacunar at intervals along the main 

 Sn. stems, and near the forks of the smaller ones; sterile 

 & branches forked witli subulate tips ; fertile podetia stouter, 

 L turgid. Apothecia minute, blackish, crowded ; thecse 

 •0225 — -*03 x -0075 — "0112 m.m., very pale blue with 

 iodine. Spores oblong or ellipsoid, minute, simple, indistinct. 

 Hymenial constituents geneially indistinct, Paraphyses 

 closely aggregated with granular brownish tips. 



Syn. — Cladia aggregata, Stv. ; Dufourea collodes, Tayl. ; 

 C. terebratula, Laur. ; Cenomyce aggregata, Fl. Ant. 



Hob. — On old logs among moss, Maroochie and Glasshouse 

 Mountains. 



2. C. retipora Flcerke (K — ) 



Podetia pale delicate glaucous green, darker at the base ; 

 ca?spitose, matted and anastomosing, 1 — 2 in. high, forming 

 Sn. a most beautifully reticulated open network ; smooth, 

 shining, branching sparingly. Apothecia small, black, 

 cylindrical, of equal length, forming circular or elliptical 

 coronas at the digitately divided apices of the branched 

 podetia. There is also a stouter, less reticulated, coral- 

 line form. 



Syn. — Cladia retipora Ach. 



Hab. — On old logs in scrubs, Maroochie. 



IV. — Hhterodea, Nyl, 



Genus of a single species, the character of which is given 

 below. The affinities of this plant are so wide that its 

 insertion under Cladoniei must be regarded as provisional. 



1. H. Muelleri Nyl (K— C— ) 



Thallus prostrate, width to 2 in. and more, densely laciniately 

 divided with spreading lacinia?, which above are somewhat 



