286 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



XXIX. 



NOTES ON SOME ALPINE PLANTS FROM 

 FORFARSHIRE AND ABERDEENSHIRE, 



BY PETER EWING. 



[Read 23r(i Februar>', 1886.] 



Thlaspi alpestre, Linn., has been divided into the 

 following varieties : — (a) sylvestre, Jord. — Raceme 

 long, style not longer than notch ; (b) occitanum, 

 Jord. — Raceme oblong, style longer than notch, pod 

 triangular ; (c) virens, Jord.— Raceme oval, style much 

 longer than notch, pod oboval. 



This plant grows in several of the mountainous 

 districts of England and Wales; and how the var. 

 sylvestre has become established in the Canlochan 

 rocks, when neither it nor any of the other forms 

 is reported from any other part of Scotland, is a 

 question of considerable interest. It is sparingly 

 distributed all over the rocks in Canlochan, growing 

 in solitary plants. I did not observe it at Canness 

 or elsewhere in the district. This is one of the few 

 Forfarshire plants of which, so far as I can find, no 

 mention is made by Don. 



From an examination of Canlochan specimens, I 

 would almost have been inclined to refer them to 

 var. virens \ but all the Floras state that only var, 

 sylvestre is to be found at the head of Glen Isla. 



Saxifraga rivularis, Linn. This plant was, I 

 believe, first recorded by Don from the Clova 

 mountains ; but the district included by him under 

 that name seems to have embraced not only the 

 mountainous part of Forfarshire (in which Clova is 

 situated), but a portion of the adjacent county of 

 Aberdeen. I can find no record of the plant having 



