144 TASMANIAN LICHENS. 



turbinate globose, 2 to -5 mm. broad, margin white. Spores 

 fuscous, fusiformi ellipsoid, sub-acuminate at each apex, some- 

 what constricted in the middle, uniseptate, with a fusco 

 nigrescent locule in each cell, "008 to -012 x "003 to '005. 



Hab. on decorticated decaying eucalyptus at foot of Mount 

 Arthur. 



2. Teachylia, Fr., pp. Nyl. 



Thallus thin, granulose or sub-leprose or smooth or foreign. 

 Apothecia black, sessile, cupuliform, open ; sporal mass black, 

 gpores nigricant or fuscous black, ellipsoid or oblong, unisep- 

 ^^te, rarely pluri septate. 



1. T. emergens, Wilson, white or whitish, thin, smooth, 

 somewhat shining. Apothecia seemiug to emerge from 

 among the fibres of the wood, and at length barely standing 

 out above the thallus, breadth to '5 ram. Spores fusco 

 nigricant, adhering closely together, ellipsoid, about '005 x 

 •003 mm. but very variable in size ; uniseptate, with a locule 

 in each cell. 



Hab. on eucalyptus rails in mountainous regions, Mouiit 

 Wellington (and Weymouth'), St. Mary's. 



3. Sph^eophokon. 



Thallus caespitoso f ruticulose, ramose and ramulose, smooth, 

 polished, fragile, fertile apices sub-globoso incrassate, enclos- 

 ing the apothecia, which are nucleiform, enclosed, ultimately 

 exposed by the irregular dehiscence of the thalline covering. 

 Spores nigricant or violaceo nigricant, spherical or sub- 

 globose. 



1. >S^. compressum, Ach., pallido albicant or lurid, ramose, 

 piano compressed. Apothecia obliquely innate on the apices, 

 receptacle wrinkled, at length lacero dehiscent or discoid and 

 open. Spores nigricant, spherical, -007 to -Oil mm. 



Hab. on trees in mountains, Krplh.; on fagus, Gunn, Hook. 

 El. Tasm. Blue Tier, Simson ; Tasman Peninsula, 

 Mount Bischoff and Mount Faulkner, Weymouih; Grordon 

 Eiver, Allport ; Maria Island, Bastow ; Mount Arthur, Mount 

 Wellington. 



2. S. Australe, Laur.; glauco pallid, sometimes lurid, under 

 surface albicant, rugose, to two inches long, branches expla- 

 nate, often distichously ramulose. Receptacle 6 to 12 mm. 

 broad, lenticulari compressed, external margin at apex cristato 

 crenate and sometimes proliferous. Spores "Oil to "015 mm. 



Hab. on trees in mountains, Brown, Cr.; Cheshunt, Archery 

 on fagus, Gunn, Hook. Fl. Tasm. Mount Wellington, (and 

 Weymouih) ; Mount Arthur, Ulverstone. 



