30 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
16. P. grisea, Unger.—On Veronica Beccabunga ; common ; 
Noddsdale, and in many places near West Kilbride. 
17. P. effusa, Grev.—On Chenopodium album ; not common ; 
West Kilbride and Seamill. 
18. P. urticee (Lib.) De Bary.—On Urtica urens ; frequent ; 
Boydstone and Troon. 
: 19. P. alta, Fckl—On Plantago major ; not common; West 
Kilbride. 
20. P. rumicis, Corda.—On Rumex Acetosa ; not common ; 
West Kilbride. On Polygonum aviculare; frequent; West 
Kilbride. 
21. P. sordida, Berk.—On Scrophularia nodosa; rare; 
Kilbride Glen. 
In his “ Revision of the Scotch Peronosporex,” read at the 
Aberdeen Conference of the Cryptogamie Society of Scotland in 
1886, and afterwards published in the Scottish Naturalist, 
Professor Trail enumerated the species then known to occur in 
Scotland, with particulars of the divisional areas in which they 
had been detected. The only species at that time recorded for 
“Clyde” were Cystopus candidus, Phytophthora imfestans, and 
Peronospora parasitica. To these were subsequently added 
Peronospora lactuce, found by Professor Trail at Tarbet ; and P. 
alta, observed by him at Inveraray (Scot. Nat., Vol. IV., New 
Series, p. 58); with Cystopus spinulosus, gathered by myself at 
West Kilbride, and submitted to Rev. Dr. Keith for verification 
(Ibid., p. 224). The remaining 15 species of the foregoing list do 
not appear to have hitherto been recorded for ‘“ Clyde.” 
