104 ANNALS OF SCOTTISH NATURAL HISTORY 



Europe as at least a probable source for some, while others 

 seemed to have been brought from elsewhere. 



As some appeared not unlikely to establish themselves 

 permanently along the Spey, I sought to discover the modes 

 and periods of their arrival, and at last succeeded in tracing 

 the chief source to the grain brought to the distilleries, 

 especially to Dailuaine, in the parish of Aberlour, about two 

 miles above Aberlour village. Near that distillery I found 

 a number of the species that grew by the Spey, along with 

 a few that had not reached the river. Beside other dis- 

 tilleries I added a few others ; but very few aliens occurred 

 near any of those along the Fiddich. Some of the species 

 that grew near the Spey were not observed near distilleries, 

 but had probably been distributed from them in former 

 years. 



Specimens of all the aliens found were dried, but some 

 remained unnamed until last winter, when a comparison of 

 them with specimens in Kew Herbarium permitted of the 

 identification of all except two or three of the Chenopodiacea. 



I have to thank Mr. S. T. Dunn, B.A., F.L.S., now Superin- 

 tendent of the Botanical and Afforestation Department in 



Hong Kong, for aid most kindly given to me while engaged 



in this work. 



As a contribution to the " alien " flora of Scotland, as 



well as of the valley of the Spey more especially, all the 



species that could be determined with confidence are 



enumerated below. 



Maholmia africana, R.Br. One near Dailuaine. 



M. maritima, R.Br. Rare on shingle near Aberlour. 



Sisymbrium pannonicui, Jacq. Near Dailuaine. 



Erysimum cheiranthoides, L. Two or three on shingle in Rothes. 



Brassica. Of this genus B. cawpestris and B. Rapa both occurred 

 on shingles and near Dailuaine, but probably rather as field- 

 weeds than from distillery rubbish. . juncea, Coss., occurred 

 among the latter at Dailuaine. 



Alyssuni (probably campestrc]. One near Dailuaine. 

 Lepiditun virginiaon, L. One or two at Dailuaine. 

 Rapistrum rugosui/i, All. One or two at Dailuaine. 

 Reseda lutea, L. At Dailuaine, and on shingle near Aberlour. 



