34 
BRITISH SPHiEROPSIDEJS. 
Gen. 5. CONIOTHYRIUM, Corda. Sacc. Syll. hi., 305. 
Perithecia subcutaneous, erumpent, or somewhat superficial, 
globose or depressed, papillate, membranaceous or rather carbona- 
ceous. Sporules globose or ellipsoid, small, continuous, diapha- 
nous, slightly coloured ; basidia short, simple, or obsolete. 
166. Coniothyrium hederae, Desm. Sacc. Syll. 1728. 
On leaves and twigs of ivy. King’s Cliffe. 
167. Coniothyrium cassiaecolum, Cooke. Grev. xm., 96. 
On stems of Cassia Marylandica. Kew. 
168. Coniothyrium sphaerospermum, Fckl. Sacc. Syll. 1733, 
On Ulex. New Forest. 
169. Coniothyrium concentricum, Desm. Sacc. Syll. 1789. 
On leaves of Yucca. King’s Lynn ; Oswestry ; Kew; Nor- 
thamptonshire. 
Gen. 6. RHABDOSPORA, Mont. Sacc. Syll. hi., 678. 
Perithecia sub-cuticular, erumpent, globose, or depressed, typi- 
cally papillate, sometimes hysteriform. Sporules rod-shaped or 
thread-like, multiguttulate, or pseudo-septate, hyaline. 
170. Rhabdospora ramealis, Desm. Sacc. Syll. 3151. 
On bramble twigs. Barnet. 
171. Rhabdospora Muggenbergii, Sace. Syll. 3155. 
On branches of Vitis vinifera. Kew. 
172. Rhabdospora salicella, B. & Br. Sacc. Syll. 3176. 
On branches of Salix. Penzance. 
173. Rhabdospora lituus, B. <$■ Br. Sacc. Syll. 3183. 
On branches. Penzance. 
174. Rhabdospora fibriseda, Berk. Sacc. Syll. 3186. 
On birch wood. King’s Cliffe. 
Gen. 7. DILOPHOSPORA, Desm. Sacc. Syll. hi., 600. 
Perithecia globose, pierced, often immersed in a crustaceous 
stroma. Sporules cylindrical, continuous, hyaline, ornamented with 
a tuft of setae at each extremity. 
175. Dilophospora graminis, Desm. Sacc. Syll. 3261. 
On wheat and grasses. Ely ; Kidbrooke ; King’s Cliffe. 
Sub-Fam. II. SPH2ERONEMEFE. 
Perithecia naked, distinctly rostellate ; sporules for the most 
part continuous, and hyaline. 
Gen. 1. SPH.ERONEMA, Fr. Sacc. Syll. III., 185. 
Perithecia membranaceous, coriaceous or carbonaceous, innate or 
superficial, globose, with a more or less subulate ostiolum. Spo- 
rules ovoid or oblong, continuous, subhyaline, forming when ex- 
pelled a globule at the apex of the ostiolum. 
