The Scottish Naturalist. 271 



*2i6. 0. Comari Trail, Sc. Nat., 1887, p. 90. 



On leaves of Potentilla Comarum, in August, near 

 Aberdeen. 

 Dee. 

 *2i;. 0. microstictum B. & Br., 4059, C.660, M.1180. 



On twigs of Rosa canina, <S:c. 

 Tay, Dee. 

 218. 0. disciforme Kunze & Schm., 4075, C.667, M.i 1 79 

 (D. Jerdoti). 

 On dead branches of Betula alba (Birch). 

 Tweed (Jedburgh). 



XLVII. Asterosporium Kunze. 



Pustules pulvinate, erumpent, dark ; sporidia stellate, dark 

 brown, rays tapering, pluriseptate ; basidia rodlike. 

 ^219. A. Hoffmannii Kunze, 4095, C.670, M.1178. 

 On bark of Fagus sylvatica (Beech). 



Tweed (Jedburgh), Dee (Aberdeen). 



XLVIII. Steganosporium Corda. 



Pustules subcutaneous, afterwards erumpent, pulvinate, dark, 

 compact ; sporidia produced singly on the basidia, ovoid 

 or pyriform, 2-pluriseptate, muriform ; basidia rod-like, 

 often mixed with paraphyses. 



220. S piriforme (Hoflfm.) Corda, 4195, C.674, M.1177 (sub- 



Stilbospora ovata Pers.). 

 On dead twigs of Fagus, Acer, &c. 

 Tweed, Forth. 



221. S. cellulosum Corda, 4200, C.675, M.1176 (sub Stegono- 



sporhun cellulosum Corda), (D. Keith). 

 On dead branches (of Tilia), at Sanquhar. 

 Moray. 



APPENDIX. 



I have to record two additions to the genus Phyllosticta found 

 by myself in the neighbourhood of Aberdeen in the autumn of 

 1887. Both are new to Scotch records. 



*ia. P. Cytisi Desm., 40, C.369. 



On leaves of Cytisiis Laburnum. October. 

 Dee. 



