232 The Scottish Naturalist. 



On capsules of Polytrichum piliferum, near Aberdeen. 

 Dee. 

 . XXII. Phleospora Wallr. 



Pycnidia imperfectly developed, ostiole wide, subcutaneous, for 

 the most Dart formed of the modified tissues of the host- 

 plant ; sporidia fusoid-filiform, thickish, 2-pluri-septate. 

 Approaches near Septoglaea among the Mela?iconiea, but 

 differs in possessing pycnidia, though these are sometimes 

 not completely formed. 

 156. P. Aceris (Lib.) Sacc. 3135, C. 551, M. 11 29 (sub 

 Sep tor id Aceris) (D. Stevenson.) 

 On leaves of Acer pseudoplatanus. Summer. 

 Tay (Glamis). 

 *i57. P. Ulmi (Fr.) Wallr. 3138, C. 553, M. 1126 (sub Septoria 

 Ulmi Kze.) 

 On elm leaves. 

 Tweed, Solway, Forth, Clyde, Tay, Dee, Moray. 

 158. P. Oxyacanthse (K. & S.) Wallr. 3139, C. 554, M. nt8 } . 

 (sub Septoria Oxyacanthce Kunze). (D. Stevenson). 

 On leaves of Crataegus Oxyacantha (Hawthorn). 

 Tay (Glamis). 



XXIII. Rhabdospora Mont. 

 Pycnidia subcutaneous, then erumpent, globular or depressed, 

 papillate, of firm texture, black or dark brown ; sporidia 

 filiform, pluriguttulate or pluriseptate, hyaline. Growing 

 usually on the stems, and not producing discoloured spots. 

 *I59- R. pleosporoides Sacc. var, rubescens Karst., 3199, S.M. 

 3048 (D. & R. Trail, Sc. Nat. 1885, p. 189). 

 On dead stems of Angelica sylvestris, May. 

 Dee (near Aberdeen). 

 *i6o, R. cirsii Karst. 3118, S.M. 3049 (D. & R. Trail, Sc. Nat. 

 1885, p. 189). 

 On dead stems of Carduus palustris, near Aberdeen. 

 Dee. 



* XXIV. Phlycttena, M. & D. 



Pycnidia subcutaneous, sometimes erumpent, spherical- oblong, 

 subhysterioid-dehiscent, scarcely complete ; sporidia fili- 

 form or fusoid-elongate, unicellular, hyaline ; basidia 

 various in nature. On stems and branches. 



