By 0. E. Broome, Esq. 



217 



Fusisporium bacilligerum B. and B., Spye Park, on leaves of 

 alaternus. 



Genus CCXXXVL, Epochnium Lk. Sterile flocci creeping 

 fertile obsolete. Spores septate, attached apparently to the matrix. 



Genus CCXXXVIL, Psilonia Fr. Flocci persistent, joined into 

 an erumpent mass, at first covering the simple spores. 



Psilonia gilva P., Rudlow, on sedges, &c. 



ORDER XXII. TRICHODERMACEI. 



Genus CCXXXVIIL, Pilacre Fr. Stem solid, cylindrical. Head 

 globose composed of flexuous, branched, radiating threads. Spores 

 produced near the tips, forming a dusty mass. 



Pilacre faginea B. and B., Spye Park, on beech sticks. 



Genus CCXXXIX., Institale Fr. Stem none; common mass 

 containing many cavities filled with spores. 



Genus CCXL., Trichoderma P. Peridium spurious, indetermin- 

 ate, roundish, composed of interwoven, even flocci, at length van- 

 ishing in the centre. Spores spread over the disc. 



Trichoderma viride P., common on dead wood. 



Genus CCXLL, Arthroderma Curr. Peridium spurious, inde- 

 terminate, roundish, composed of interwoven, strongly constricted, 

 jointed flocci. Spores collected in the centre. 



Family Y. Ascomycetes. 



/ ( Elvellacei. 



Tuber acei. 



m 



2 ( 

 8 



Phacidiacei. 



Sphceriacei. 



Carnose, waxy, or tremelloid. Hymeniu 

 exposed, rarely nearly closed. 



Hypogaeous. Hymenium mostly compli 

 cated. 



Hard, or coriaceous. Hymenium at length 

 exposed. Disc orbicular, or very narrow 

 and linear, surrounded by the obtuse or 

 inflected margin. 



Perithecia opening by a distinct, puncti- 

 form, or short linear ostiolum. Asci 

 mostly springing from the walls. 



u2 



