AUSTRALIAN FUNGI. 
293 
1565. Hypoxylon (OTacroxylon) stratosum. Sacc. Pug. 
Austr. p. 13, fig. 1. 
Stroma hemispherical, large, superficial, between corky and 
woody, then rather carbonaceous (8-4 c.m. broad), everywhere 
sooty brown, externally even, somewhat varnished, covered with 
the punctiform ostiola, internally composed of numerous con- 
centric strata, corky and shining ; perithecia seated in the outer 
stratum, oblong, black, with short necks. Asci (?). Sporidia 
■ellipsoid, sooty brown, continuous (12 xo p ). 
On bark. Queensland. 
** Sph^roxtlon. 
Stroma superficial, globose, or nearly so. 
a. Stroma coloured. 
1566. Hypoxylon coccineum. Bull. Champ. 174. Sacc. 
Syll. 1333. 
Stroma erumpent, then superficial, nearly globose, violet brown, 
or fawn-colour, then brick- red, when mature always rubiginous, 
internally sooty black, solitary or connate, when fully developed 
minutely mamillose. Perithecia minute, ovate, peripherical, 
crowded; asci cylindrical, 70-88 x 5-7 p. Sporidia obovate, un- 
equal-sided, blackish brown, 10-12 x 4-5 p, often biguttulate. 
On branches. Victoria. Tasmania. (Fig. 203.) 
1567. Hypoxylon argillaceuni. Pers. Syn. 10. Sacc. Syll. 
1337. 
Stroma erumpent, then superficial, rather globose, distinct, 
rarely connate, clay-coloured, becoming black within ; perithecia 
ovate, small, crowded, rather prominent, minutely mamillose; asci 
■cylindrical, 140 X 16 p . Sporidia broadly ovate, quite obtuse, un- 
equal-sided, becoming blackish, involved in a thin, hyaline, mucous 
stratum, 22-24 x 10-12 p. 
On trunks. Tasmania. 
1568. Hypoxylon rutilum. Tul. Carp. Fungi n., 38. Sacc. 
Syll. 1344. 
Stroma erumpent, on corticated branches, soon free, superficial, 
pulvinate, for the most part of irregular form, often depressed at 
the apex, distinct, connate, or confluent, more or less effused on 
naked wood. Young stroma clay-coloured, fawn, or bright red, 
when mature red-brown or dark red ; perithecia small, subglobose, 
densely crowded, minutely mamillate, not prominent ; asci cylin- 
drical, 56-80 x 5-8 p. Sporidia oblique or straight, in single rows, 
ovate, obtuse, unequal-sided, becoming blackish, 8 x4-5 p. 
On bark aud wood. Victoria. Queensland. 
1569. Hypoxylon fuscuni. Pers. Fries. S. V. S. 384. Sacc. 
Syll. 1368. 
Stroma erumpent, then superficial, free, spot-like, depressedly 
pulvinate, hemispherical, rarely subglobose, purple brown, then 
