SPH^RIACEI. 830 



2514. Valsa vestita. Fr. '« Woolly Valsa." 

 Spermogoxia. — Spermatia cylindrical, straiglit. 



AscoPHORE. — Circinating ; perithecia crowded, globose, 

 covered at first with a dense, pallid, yellowish, sub-evanescent 

 woolly down ; ostiola united ; sporidia elliptic, transversely and 

 longitudinally septate. Curr. Phil. Trans. [1867), p. 5 46. Linn. 

 Trans, xxii. t. 48,/. 161. Fr. S.M. ii. p. 410. B. 4' Br. Ann. N.H. 

 no. 866. Thyridiinn vestitum, Fckl. 



On dead twigs (beech). 



Sporidia ('OOO^-'OOOS in.) •015--02 ra.m. long. '}>lv. Currey believes that 

 the woolly covering produces as macrostylospores a species of Stejanosporium. 



2515. Valsa hapalocystis. B.S^Br, " Velvety Yalsa." 



Scattered, covered ; perithecia subglobose, delicate, minutely 

 tomentose, neck oblique, constricted below, shortly fusiform ; 

 sporidia oblong-elliptic, appendiculate at either end, biseptate. — • 

 B. ^ Br. Ann. N.H.no. 615, f. 10,/. 12. Cooke exs. no. 253 (sub 

 Sphcerici). Calospora hapalocystis, FcH. Si/m. Mtjc. p. 191. Hap- 

 alocystis BerJcelaei, Fckl. exs. no. 585. 



On dead plane twigs. Batheaston. 



The perithecia are peculiarly delicate, and not so decidedly tomentose as in 

 V. vestita. 



D. Sphcsriei, 



Csespitose — _ 



Perithecia carbonaceous, erumpent . . . Cucurhitai-ia, 



Perithecia waxy, astomous .... Gibbera. 



Scattered — 



Perithecia immersed, sporidia oozing out and 



staining the matrix ..... Massaria. 



Perithecia erumpent. Ostiola large, compressed Lophiostoma. 



Perithecia carbonaceous, pierced . . . Sphceria. 



Perithecia membranaceous, innate . . . Sphcerella. 



Perithecia fragile, hairy, superficial . . Veaturia. 



Perithecia sclerotioid Pyrenophora. 



Perithecia membranaceous, rostrate, sporidia 



oozing at the ostiolum .... Ceratostoma. 



Perithecia membranaceous, scutiform . . Microthyrixtm. 



Perithecia astomous, reticulated. Sporidia sub- 

 globose Orbicula. 



Perithecia mouthless, then pierced. Parasitic Stigmatea. 



Perithecia astomous, concealed, at length split- 

 ting Hypospila. 



Perithecia obsolete ; nucleus immersed . . Isothea. 



Perithecia elliptic, bursting longitudinally . Dichaeaa. 



Perithecia elongated, often fringed at the 



mouth. Parasitic Capnodium. 



