Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 453 



973. S. (Denudatfe) ordinata, Fr. Syst. ii. p. 454. On de- 

 corticated fallen oak branches. Little Heath, Essex, Dec. 1859. 

 Barking. 



Perithecia scattered or aggregated, arranged in lines, ovate, 

 with a papillary orifice, rusty brown becoming black, covered at 

 first with a tomentose veil, sometimes regulai'ly attenuated, rest- 

 ing on a brownish friable mycelium ; asci clavate ; sporidia bi- 

 seriate, curved, fusiform, hyaline, multiseptate, '0015 inch long, 

 sometimes shorter. 



This appears to be the plant of Fries. Montagne^s plant has 

 elliptic fruit like Sphceria millegrana, '0005 inch long. 



Plate XVII. fig. 26. Ascus and sporidia magnified. 



*S. (Denudatse) pulveracea, Ehrh. Our specimens are exactly 

 the same as S. millegrana, Schwein. 



974. *S^. (Csespitosse) naucosa, Fr. in Myc. Heft ii. p. 36. 

 On elm. Batheaston, Jan. 1860, C. E. Broome. 



Asci clavate ; sporidia "001 inch long, obovate, multicellular, 

 with vertical and transverse septa. 



We have no typical specimens. The perithecia, when old, 

 are almost black ; the ostiola obsolete ; the surface smooth and 

 shining, with generally a single fissure at the apex. 



Plate XVII. fig. 27. Asci and spores magnified. 



975. S. (Platystomse) Jerdoni, n. s. Peritheciis sparsis 1. sub- 

 congestis subglobosis, ostiolis angustioribus linearibus; sporidiis 

 una cum utroque articulo medio constrictis bi- trinucleatis. 



On Rubus IdcEus. Mossburnford, A. Jerdon, Esq. East 

 Bergholt, apparently on elm, with the perithecia more scattered. 

 Rev. CD. IBadham. 



Perithecia scattered or slightly crowded, subglobose, with 

 narrower linear ostiola; asci clavate; sporidia biseriate, '0012- 

 •00125 inch long, strongly constricted in the centre, as also each 

 of the two bi- trinucleate joints. 



Plate XVII. fig. 28. Sporidia magnified. 



976. S. (Ceratostomse) stylophora, n. sp. Peritheciis primum 

 tectis demum liberatis in fasciculos orbiculares dispositis ovatis 

 sursum attenuatis ; ostiolis sesquilongioribus ; ascis late clavatis ; 

 sporidiis fusiformibus hyalinis uniseptatis utrinque appendicu- 

 latis. 



On Acer platanoides. Mossburnford, A. Jerdon, Esq. 



At first covered, then exposed ; perithecia collected in little 

 orbicular patches, ovate, attenuated above, with styliform ostiola 

 longer than themselves; asci broadly clavate ; sporidia biseriate, 

 hyaline, fusiform, uniseptate, appendiculate at either end. 



Plate XVII. fig. 2.9. a. Group of perithecia; b. sporidia. (Both mag- 

 nified.) 



