98 
NEW BRITISH FUNGI. 
Leptothyrium medium, Coolie. 
Hypophyllous. Perithecia scattered, rather large (1 mm. diam.), 
depressed, circular, dark brown. Sporules crescent-shaped, narrow, 
attenuated to each extremity (•012- , 014x *002 mm.). 
On dead leaves of Quercus. Gomshall, 1874. 
Scattered over the whole under surface, without any discoloured 
spots. Similar in habit to L. macrothecium , but with larger spores. 
var. Castanaecola, Cooke. 
Perithecia not more than half the diameter of those on oak 
leaves, but the fructification the same. 
On leaves of Castanea. Darenth, 1874. 
Gloeospoxium Bexbexidis, Cooke. 
Hypophyllous. Pustules gregarious, numerous, convex, seated 
on broad discoloured patches of the fading leaves, sometimes occu- 
pying the whole surface ; pustules pallid, spots brown with a bright 
red margin. Conidia ovoid, hyaline (*005 x *003 mm.). 
On fading leaves of Berberis asiatica and other species. Kew 
Gardens, March. 
Ovulaxia Bexbexidis, Cooke. 
On the under surface, effused, greyish white, forming thin 
frosty-looking patches. Hyphse short, simple. Conidia oval or 
elliptical, hyaline (-OIS-'OIS x ’OOS-’OOi) mm.). 
On fading leaves of Berberis asiatica and other species. Kew 
Gardens. 
Valsa (Choxostate) Hippocastani, Cooke. 
Pustules composed of a few perithecia (6-8) nestling in the 
bark, and elevating the cuticle, which is at length pierced by the 
short convergent ostiola. Perithecia subglobose, depressed, usually 
forming definite clusters, black. Asci clavate, subsessile, eight- 
spored. Sporidia fusiform, biseriate, uniseptate, biguttulate, a 
little constricted at the septum, sometimes with a very small 
hyaline apiculus at each extremity, hyaline (-025-*028 x *005-'007 
mm.) . 
On branches of ALsculus hippocastanum. Kew, Bushey Park, 
Hampton Court, and Honnington (Suffolk). 
In many respects resembling Cryptospora sSsculi, Fckl., but 
distinctly uniseptate. 
Valsa (Choxostate) Ailanthi, Sacc. Syll. No. 2408. 
Stroma valsaeoid. Pustules scattered, small (5-6 perithecia), 
seated on and immersed in the wood, with the stroma circum- 
scribed, at first covered by the epidermis, and when fissured 
encircled by it. Perithecia roundish (^ mm. diam.), ostiola elon- 
gated, cylindrical, connivent in a small black disc. Asci cylin- 
drical fusiform (*05 x *007 mm.). Sporidia oblong, fusiform, 
quadriguttulate, then uniseptate, slightly constricted at the 
septum, hyaline (012--015 X *004 mm.). 
At the extremity of young, dead twigs of Ailanthus glandulosa. 
Kew. 
