250 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



7. — Roadside plantation near Kirkmichael, growing 

 partly in the hedgerow. 



8. — Among trees on the side of south approach to 

 Lanfine House, near Newmilns. 



Equisetum hyemale, Linn. 



1. — Craigenconner Glen on Cessnock Water (Parish 

 of Craigie) ; partly shaded by trees. 



2. — Side of Ayr Water near Failford (Parish of 

 Tarbolton). 



3. — Cairnhill Woods (Parish of Craigie). 



4. — In a wood at Wallacetown, near Lugar, on 

 north side of Glenmuir Water (Parish of Auchinleck) ; 

 partly shaded by trees. 



In all the localities where E. maximum grows, 

 it is always (except in the first station mentioned) 

 in large patches. On the other hand, E. hyemale is 

 represented by few but vigorous plants. The latter 

 always occurs where the ground is moist ; while the 

 former grows equally on dry and wet soil, but 

 becomes stunted in growth when exposed to too 

 much or too little moisture. In the Lendalfoot 

 locality, the sea air may probably have had as much 

 influence as the wetness of the soil in checking the 

 growth of the plants. 



