PERONOSPORE.E AND USTILAGINE^ OF NORTH AYRSHIRE. 161 



Additional Notes on the Peronosporese and Ustilag-ineae 



of North Ayrshire. 



By D. A. Boyd. 



Read 28tli September, 1897.] 



On 27th December, 1892, I submitted to the Society a list of the 

 Ustilaginese of North Ayrshire,* in which were enumerated 16 

 species, with particulars of the host-plants on which they had 

 been observed by me, and the localities in which they had 

 occurred. On 24:th April, 1894, a similar list of Peronosporese, 

 enumerating 21 species, was also communicated to the Society, t 



Since the dates when these papers were read, several additional 

 species have been detected within the district, while certain fungi 

 have been gathered on host-plants other than those formerly 

 indicated, and in localities not previously reported. 



In the following supplementary list, the mark "J" is prefixed 

 to the names of species not I'ecorded for Ayrshire in my former 

 papers, while additions to the number of host-plants and localities 

 are similarly indicated : — 



PEROXOSPOREiE. 



CystopuS SpinulOSUS, De Bary. — On tCnicics arvensis; rare; 

 \Ye&t Kilbride. 



J C lepig'Oni, Be Bary. — On Lepigonujii ; rare; Horse Isle 

 (Ardrossan), August, 1896; sea-shore at Chapelton (West 

 Kilbride), June, 1897. Specimens from the latter station have 

 been submitted to Miss A. Lorrain Smith, British Museum 

 (Natural History), who has kindly confirmed my identification 

 of them. 



Peronospora densa, Eabh. — On %Pedicularis palustris ; 

 not common ; Knockewart Hill (Ardrossan). 



* Trans. Nat. Hist. Soc. Glasg., iv., N.S., p. 24. flbicl, p. 28. 



