Rev. M. J. Berkeley on British Fungi. 263 



130. Oidium chartarum, Lk. Sp. 1. p. 124. On damp paper, 



King's Cliffe. 



131. Epochnium macrosporoideum, n. s. On the decorti- 

 cated portion of a decayed twig apparently of Ribes rubrum, 

 King's Cliffe, August. Forming a thin slate-black stratum. 

 Flocci transparent, perfectly colourless under the microscope, 

 as far as I have observed not septate, very slender, effused, 

 irregularly branched, often anastomosing at right angles. From 

 the tips or on very short lateral branches spring subglobose 

 or oval colourless transparent vesicles with a central nucleus ; 

 these by degrees are furnished within with obscure septa still 

 retaining their transparency; at length they acquire when full- 

 grown a brown hue, and are from ytuo ^° 20V °^ an * ncn m 

 diameter. They are then in general more or less globose, di- 

 vided by septa into a few lobes, which are disposed in a radia- 

 ting manner like the berries of a mulberry. Occasionally the 

 septa appear darker than the rest of the sporidia. A few are 

 furnished with a little apicular peduncle, but the greater part 

 lose all traces of the point of attachment. I have sometimes 

 seen one or two cells projecting from the otherwise globose 

 sporidia, and in one instance two sporidia were united by 

 means of such a process. I have little hesitation in referring 

 the present highly curious production to the genus Epochnium, 

 the circumstance of the sporidia being globose being clearly 

 comparatively of small importance. 



Plate VIII. fig. 14. a, Epochnium macrosporoideum, nat. size; b, early 

 stage of do. ; c, a portion more advanced; d, sporidia; e, a single sporidium 

 more highly magnified. 



*132. Sepedonium roseum, Fr. 1. c. p. 438. On Helvella 

 crispa, Laxton. 



133. Xenodochus carbonarius, Schlecht. in Linn. vol. i. 

 p. 237. t. 3. f. 3. Upon livedo miniat a of the common Burnet. 

 This very interesting addition to our Flora was found near 

 Ashby de la Zouch by Mr. Churchill Babington. It appears 

 to have been detected before only by Schlechtendal. 



134. Torida graminis, Desm. n. 169. On dry leaves of large 

 Carices, Collyweston, Norths. 



135. Cylindrosporium Ficarice, Berk. Brit. Fung. Fasc. 3. 



