THE VICTORIAN NATURALIST. 63 



texture, passim rufo-fuscous, old lobes fusco-furfuraceous, as 

 though denuded of cortex. Apothecia similar to type, but with 

 margin thinly plicate, or tumid, or granulate, or briefly laciniate. 

 Spores ovoideo-fusiform, often acuminate at apices (•oi3-*oi7 mm. 

 long, •005-006 thick), usually 3, septate, with or without longi- 

 tudinal division of central cells. Habitat on mossy trees and rocks. 



9. Leptogium limbatum. Wilson, spec. nov. 



Thallus plumbeous or cceruleo-plumbeous, passim rufo-fusces- 

 cent, membranaceo dilated, rotundo-lobate, undulate, circumfer- 

 ence reflexed, sinuate, and for the most part adorned with a tumid, 

 minutely squamose fringe, occasionally bullate, bullae crowded 

 with spermagones ; concolorous beneath, albo-tomentose, but 

 circumference broadly nude. Apothecia pallido-rufous, somewhat 

 convex, large (4 mm. diam.), appressed, with squamose thalline 

 margin. Habitat on back of trees in sub-alpine localities. Allied 

 to Z. ijiflexiim (Nyl.), but thallus lobate and limbate, and the 

 under surface concolorous and less tomentose. 



ID. Obryzum myriopus. Wilson, spec. nov. 



Thallus cinerascenti-plumbeous or cceruleo-plumbeous, small 

 (i in. diam.), rotundo-lobate, deeply incised, lobes imbricate, 

 margin slightly incurved, upper surface minutely and confusedly 

 rugulose, under surface densely covered with woolly, often 

 fasciculate rhizinse, white or coeruleo-nigricant. Apothecia endo- 

 carpoid, showing externally depressed fuscescent tubercles (-2 mm. 

 diam.) scattered, here and there crowded. Spores, 8 in asco, 

 ellipsoideo-fiisiform (*oi3 mm. long, "004 thick), amber-coloured 

 with iodine. • Paraphyses distinct. Granula gonima (-015 long, 

 •07 thick) binary, minutely granulated or mottled, moniliform or 

 scattered one or two in a cell. Habitat among jungermannias, 

 on bark of trees in shady forest. In Queensland, found by Mr. 

 J. Shirley on rocks, but isidiose and sterile. 



11. Myriangium dolichosporwn. Wilson, spec. nov. 



Thallus black, small (2-5 mm. broad, 2 mm. or more high), 

 pulvinate, opaque or slightly shining, unequal. Apothecia often 

 nearly covering the thallus and concolorous with it. Epithecium 

 slightly rufescent. Disk plane or concave, attaining a breadth of 

 I mm. Receptacle elevated or stipitate, stipe sometimes i mm. 

 long, tapering downwards ; thalline margin rounded. Thecse 

 spheroidal, scattered through the cellular substance of the apo- 

 thecium. Spores 8, colourless, cylindrical, curved, narrowing at 

 each end, and marked with minute guttpe down the longi- 

 tudinal axis, '04 mm. long and '006 mm. broad. Habitat on twigs 

 of Hymenanthera Banksii. 



12. Sphinctrina vticrocephala. Nyl. ; var. nov. tenella, Wilson. 

 Thallus probably that of some pertussaria. Apothecia fuscous, 



shining, stipe long and slender ('3 mm. high, -05 mm. thick). 



