The Scottish Naturalist. 127 



VIII. Cytospora, Ehrenb. 

 Stromata subcutaneous or erumpent, conical or verrucose, inter- 

 nally showing unequal spaces (sometimes abortive), often 

 arranged in a circle. Sporidia very abundant, oblong, 

 sausage-shaped, sub-hyaline, expelled, when moistened, in 

 tendrils of various forms ; basidia various. The fungi 

 referred to this genus are mostly spermogonia of Valsa, 

 and of other genera of Pyrencmycetes, with sausage-shaped 

 spores. 



50. C. chrysosperma (Pers.) Fr. 1519, C. 332, S.M. 3069. 



(R. in Grevillea, xiv., 64.) 

 On decorticated branches of Popuhis alba (White Poplar). 

 Clyde. 

 *5i. C. leucosperma, Fr., 1561, C. 342. (D. and R. Trail, 

 no previous record.) 

 On dead twigs of Wild Roses, near Aberdeen, in winter. 

 Dee. 

 Mentioned in Cooke's Handbook as the spermogonium of 

 Vaha ambiens (No. 2475) J Dut Saccardo gives C. ambiens, 

 Sacc. (not yet recorded from Scotland), as belonging to this 

 Valsa. 

 *52. C. carphosperma, Fr., 1594, C. 331, S.M. 3069. (I), 

 and R. Trail, Sc. Nat. 1886, p. 265.) 

 On dead twigs of Pyrus communis (Pear), and of P. Aucv- 

 paria (Rowan or Mountain Ash), near Aberdeen. 

 Dee. 

 This also is mentioned in Cooke's Handbook as belonging to 

 Valsa ambiens. 

 *53- C. foliicola, Lib., 1602, C. 337, S.M. 3032. (D. and R. 

 Trail, Sc. Nat., 1885, p. 128.) 

 On stems and dying or dead leaves of Vinca minor (Lesser 

 Periwinkle), near Aberdeen, in winter and spring. 

 Dee. 

 *54- C. Laurocerasi, Fuckel, 1603, C 355. (D. and R. Trait.) 

 On dead leaves, and var. ramulorum, Sacc, on dead 

 branches, of Primus Laurocerasus (Cherry Laurel), near 

 Aberdeen, from autumn to spring. 

 Dee. 



IX. Ceuthospora Greville. 

 Stroma subcutaneous, then erumpent, conico-truncate, subcori- 



