Fungi, by M. J. Berkeley.) FLORA OF TASMANIA. 281 
Has. On dead wood, Archer. 
: Densely crowded. Perithecia astomous, rugulose, at length by collapsing saucer-ghaped. sci clavate. Spo- 
ridia biseriate, elongated, curved, quadrinucleate, „4 inch long.—This species at first sight looks very like S. phao- 
stroma, but there are no hairs, and the sporidia are different. 
4. Spheeria byssiseda (Tode, Meck. f. 69). 
Has. On dead wood, Archer. 
It has rather longer spores („14-755 inch) than British specimens, and thus approaches S. Desmazierii, Berk. 
et Br. 
Gen. LXXXIIL CERATOSTOMA, Fr. 
Stroma nullum l. myceliiforme. Perithecia membranacea, nuda, verticalia. Ostiolum insigniter elon- 
gatum, apice penicillatum. 
This genus comprises those simple Spheria which have extremely long ostiola ciliated at the tips, and of a soft 
membranaceous substance. The sporidia moreover are expelled from the ostiola, and often remain attached. (Name 
from kepas, a horn, and eropa, a mouth.) 
l. Ceratostoma caprinum (Fr. Summ. p. 996). 
Has. On dead wood, Archer. 
It has the same white, flagelliform orifice when perfect as S. vervecina, Desm., but it has no subiculum, and the 
sporidia do not exceed 357 inch in length, though they are freguently shorter. 
Gen. LXXXIV. GLONIUM, MM. 
Perithecium liberum, compositum e ramis radiatim excurrentibus teretiusculis prostratis, rima longitu- 
dinali dehiscens. Sudieulum byssinum. 
This curious genus is distinguished from Hysterium by its free, very compound perithecia. It is a very unex- 
pected inhabitant oí Tasmania, being hitherto confined to the United States and the north of Europe. (Name from 
xAwvıov, in allusion to the linear orifice of the perithecia.) 
1. Glonium stellatum (Mühl. Cat. Am. p. 101). 
Haz. On dead wood, Archer. 
Gen. LXXXV. HYSTERIUM, Fr. 
Perithecium simplex 1. subramosum, ellipticum vel elongatum, innatum 1. emergens, rima longitudinali 
dehiscens. 
Approaching very near to the Opegraphoid Lichens, but distinguished by the total absence of crust. ` Essen- 
tially plants of temperate regions. (Name from $crepov, in allusion to the mode of dehiscence.) 
l. Hysterium tardum (Berk.) ; peritheciis ellipticis obtusis tarde apertis, ascis brevibus, sporidiis 
uniseptatis. - 
Haz. On the under side of the leaves of Cyathodes straminea, J. D. H. . 
On the under side of the leaves. Perithecia flat, elliptie, very obtuse, opening principally in the centre. Asci 
short, thick. Sporidia subclavate, uniseptate, 4955 1259 inch long, with a hyaline border. This species is almost 
intermediate between Hysterium and Phacidium. A few specimens only show any trace of an aperture. 
4c 
VOL. II. 
