170 TRANSACTIONS OF THE [Sess. 



Notes on Scottish Plants. By J. R. Matthews, 

 M.A, F.L.S. 



(Read 15th February 1923) 



Ten years have elapsed since the publication of Notes on 

 Mid-Perth Plants (Journ. Bot., 1913, p. 193), and although 

 but a limited amount of field-work in that area has been 

 accomplished during the interval, several plants of sufficient 

 interest to justify some record of them have come under 

 observation. While the notes which follow deal mainly with 

 material collected in Mid-Perth, vice-county 88, mostly from 

 the Lowland Earn district, reference is made also to certain 

 plants gathered in other parts of Scotland. In these cases 

 the Watsouian number or name of the county is indicated ; 

 where no such details are given the record refers to Mid-Perth. 

 I have had the valued and experienced aid of Mr. Arthur 

 Bennett in dealing with certain difficult genera, especially 

 Potamogeton, and Dr. Eric Drabble has kindly confirmed the 

 naming of the pansies ; to both gentlemen I am much in- 

 debted for their assistance. 



Corydalis claviculata, DC. This is rare and local, especially 

 in the Lowland districts of Perthshire. It occurs on wet, 

 rocky places, Craig Rossie, Ochils — a somewhat isolated 

 station. 



Draha incana, L. var. confasa (Ehrh.). Ben Ledi. Quite 

 characteristic, fruits with stellate hairs. 



Sisymbrium altissimum, L. Railway bank. Dunning. An 

 alien which is spreading. 



Erysimum cheiranthoides, L. Apparently established on 

 waste ground, near Tobermory, v.-c. 103, Mid-Ebudes. 

 Dunn, in Alien Flora of Britain, remarks that it becomes 

 rapidly rarer and less permanent northwards. Its occurrence 

 in Mull would seem to indicate a widening range in the dis- 

 ti'ibiition of the plant. It is queried for v.-c. 103 by Ewing in 

 The Glasgow Catalogue of Native and Established Plants. 



Viola agrestis, Jord. One of the commonest segregates of 

 V. arvensis, Murr. 72 Dumfries, 73 Kirkcudbright. 85 Kin- 

 ross, 88 Mid-Pei'th. — V. segetalis, Jord. Cultivated land west 

 of Dunning, and near Milnathort, v.-c. 85. — F. obtusifolia, 

 Jord. Rather infrequent. Mid-Peith, Kinross, and Ayr- 



