By C. E. Broome, Esq. 225 



lacuna) ending afc the surface. Asci elliptic. Sporidia globose. 



Genus CCLXXI., Sphcerosoma Kl. Common integument wanting. 

 Hymeniura exposed, even or rugose, solid or lacunose. Asci linear. 

 Sporidia sphaerical. 



Genus CCLXXII., Bahamia Vitt. Common integument warty. 

 Hymenium complicated with distinct lacunae not leading to the 

 surface. Sporidia cylindrical, or oblong-elliptic, even, pellucid. 



Balsamea platyspora B. and B., Rudlow, in a plantation of fir 

 and beech. 



Genus CCLXXIII., Genea Vitt. Common integument warty, 

 with an aperture at the apex. Hymenium waved and sinuated, 

 but not forming an intricate mass. Asci cylindrical. Sporidia 

 globose. 



Genea verrucosa Vitt., Bowood, and near Salisbury under beech 

 trees. 



hispidula B. and B., Bowood. 



Genus CCLXXIY., Ehphomyces Nees. Common integument 

 thick, hard. Asci globose, or obovate. Sporidia consisting of 

 several concentric utricles. Internal mass at length dusty. 



Elaphomyces variegatus Vitt., Spye Park in sandy ground under 

 beech trees. 



ORDER XXV. PHACIDIACEI. 



Genus CCLXXV., Phacidium Fr. Perithecium bursting irregu- 

 larly in the centre by valvular teeth. 



Genus CCLXXVI., Heterosphoeria Grev. Perithecium globoso- 

 depressed, thin, black, at length open above and irregularly torn. 

 Disc thick, placentoeform. 



Heterosphoeria patella Grev,, on umbelliferous stems common, 

 but rarely perfect. 



Genus CCLXXVII., Rhytisma Fr. Perithecia forming a con- 

 fluent mass, opening by flexuous fissures. 



Rhytisma acerinum Fr., on sycamore and maple leaves common. 



salicinum Fr., on willow leaves. 



Genus CCLXXVIII., Triblidium Eeb. Perithecium labiate, 

 splitting from the centre towards the circumference. 



x2 



