I 



REVISION OF THE SCOTCH PEKISPORIACKAE. 19 



Taj', Moray ! 



England, Evirope, Sibei'ia, Algeria. 



Genus 12. Perisporium Fries. 



28. P. vulgare Corda (M.S. 1822) (D. Keith).— On 

 old straw ! and old matting I 



Dee ! Moraj . 



England, throughout Europe. 



Genus 13. Ascotricha Berk. 



29. A. chartarum Berk. (M.S. 1844) (D. Buchanan 

 White).— On decaying j)aper, at Perth. 



Tay. 



England. 



Winter (Rabenhorst's Krypt. Flora, Die Pllze, vol. I., pp. 

 157-59) places this species in the genns Chaetonilum. His de- 

 scription and figure differ so much, however, from the very 

 brief description and figure in Berkeley's Notices of Brit. Fungi, 

 No. 116, that it is dovibtful whether they can belong to the same 

 species. It seems preferable to retain it, therefore, in its former 

 position, at least in the meantime. 



Genus 14. Capnodium Mont. 



30. C. salicinum (Alb. and Sehw.) Mont. {D. and R. 

 Trail). — On leaves of various species of Salix, and 

 of other trees and bushes, forming a black sooty 

 crust (Fiunago), but rarely bearing perithecia. 



Clyde! Argyle ! Tay! Dee! Moray! 



England, throughout Euroi)e. 



C. quercinum (Pers.) Berk, and Desm., which is 

 very common in the Fumago-stage on Oaks in 

 Scotland {Scot. A'at., 1886, it. 229) ! is probably a form 

 of C. salicinum. 



31. C. Footii Berk, and Desm. (M.S. 1847).— On 

 leaves of evergreens in conservatories, and oji laurel 

 and ivy. 



Tay, Moray. 



Central and Southern Europe. 



Capnodium. Citri Berk, and Desm., which I have 

 fovxnd plentifully upon young orange trees in a green- 

 house near Aberdeen {Scot. Nat., 188G, p. 229), may 

 be a condition of C. Footii: but as fructification of 



