272 The Scottish Naturalist. 



Spots sub-circular, becoming brown and dry; pycnidia scattered 

 in the paler centre ; sporidia oval or oblong, 5-8 by 3-4, 

 hyaline or nearly so. 

 *2. P. Sambuci Desm., 95, C.378. 



On leaves of Sambucus nigra. October. 

 Dee. 

 Spots sub-circular, becoming dark brown, then pale ; pycnidia 

 scattered, few ; diameter 8c ; sporidia slender, oblong, 

 5-7 by 1 1-2^, hyaline, biguttulate. 



The list now concluded shows a considerable advance within 

 the last decade in our knowledge with regard to the Scotch 

 example of the two groups of " Imperfect Fungi " treated of in it. 

 It is scarcely possible to compare in detail the numbers in the 

 groups as given in the Mycohgia Scotica, and as understood above ; 

 but comparing the final results we have 223 in this list, to 100 (ex- 

 cluding four not belonging to either group) in the Mycologia. 

 Looking to the districts, the advance in the number of records 

 is found to be almost confined to the north-east of Scotland and 

 xVrgyle. " Dee," formerly fifth, now heads the list. 



In the Mycologia, in 1879, the numbers were : 



Tweed, 20 ; Forth, 16 ; Tay, 66; Dee, 15 ; Moray, 24. 

 Sol way, 1 ; Clyde, 9 ; Argyle, 6 ; W. Ross, 7. 



In the present list (1887) they stand: 



Tweed, 24 ; Forth, 20 ; Tay, 69 ; Dee, 149 ; Moray, 43. 

 Solway, 4 ; Clyde, 9 j Argyle, 18 ; W. Ross, 8. 



But our records are still very incomplete ; and there are many 

 " species " of both groups still undetected in our flora. I hope to 

 be in a position to add considerably to the above list from material 

 in my possession that awaits a fuller examination than I have yet 

 been able to give it. 



