932 



SPH^RIAOEI. 



On the under surface of oak leaves. Shere, Surrey. Dec 

 1«65. (Dr. E. Capron.) 



Closely allied to /. puMida, but smnllor, and differing in fructification 

 present I have only seen it upon two leaves. 



At 



2304. 



Zsothea saligna. B. " Sallow Isothea." 



Uni-multi] ocular, convex, brown-black, subumbonate in the 

 centre ; asci cylindrical ; sporidia filiform, simple. — Berk. Outl. 

 ]). 392. Berk.exs. no. 191. Fhomasalignvm,Fr. S.3f. ii. p. 546. 

 IVies exs. no. 283. Eng.Fl. y. p. 283. Sph. salicma, Sow. t. 372, 

 J] 1. j\fovg. ea;5. rzo. 268. Linosp)ora cajyreoe, Fckl. Sym. Myc. p. 

 124. Fckl.exs.no. 879. 



On fallen sallow leaves. Winter and Spring. 



Gen» 366. 



DICHJSNA, Fr. 



Perithecia subcarbonaceous, elliptic, 

 closed, bursting by a longitudinal fissure ; 

 nucleus and asci difiluent. 



{Fig. 406.) 



2805. Dichsena strobilina. Fr. " Fir- 

 cone Dicha^na." 



Peiithecia gregarious, ir- 



Pycnidia. 



Fig. 406. regular; stylospores almond-shaped, hya- 



line ; endochrome bipartite. — Hendersonia 

 strobilina, Curr. Linn. Trans, xxii. ^. 329. Cooke, exs.no. 341. 



AscoPHORE. — Gregarious, erumpent ; perithecia rather irre- 

 gular, rounded at first, soft, dirty-brown, then black, opening by 

 a longitudinal fissure ; sporidia fusiform, slightly curved, trisep- 

 tate, sometimes each cell nucleate, hyaline. — Fr. S.V.S. p. 403. 

 Sph. strobilina, Fr. S.M. ii.p. 495. Fries, exs. no. 318. Eng. Ft. 

 y.p. 271. Fckl. exs. no. 790. 



On fir cones. 



The stylosporous condition is far more common than the ascigerous state, 

 found by Dr. Capron at Shere. Sporidia (•0004--0005 in.) •01.-0127 m.m. 



{Fig. 406.) 



DiCHiENA RUGOSA, Fr. I think should be included with 

 Lichens ; Rabenhorst divides it into two species under the names 

 of Psilospora faginea on beech, and Psilospora quercus on oak. 



