38 TRANSACTIONS OF THE [ Sess. LXXII. 
uninhabited islands such as Minearlo, and seems to be 
indigenous. 
Trifolium repens, L., var. Townsendii, is still abundant in 
the old locality near the lake in Tresco. 
Angelica sylvestris, L., was very luxuriant in marshes 
in St. Mary’s, attaining nine feet. 
Anthemis nobilis, L., is very common in the herbage in 
St. Mary’s. 
Sonchus arvensis, L.—Tresco, St. Mary’s. Forms a con- 
spicuous plant on the cliffs. 
Samolus Valerandi, L.--Occasionally on the cliffs where 
there is slight accumulation of debris. 
Plantago Coronopus, l., is very luxuriant on the shores, 
while P. maritima seems to be lacking. . 
Antirrhinum Orontium, L—St. Mary’s, St. Martin’s, 
St. Agnes, Tresco. 
Scrophularia Scorodonia, L.—St. Mary’s, St. Martin’s, 
Tresco, Samson, St. Agnes. 
Briza minor, L.—Scattered by roadsides in St. Mary’s. 
Pteris aquilina, lL, is the predominant plant in the 
uncultivated parts of the islands and is very luxuriant. 
Here and there in the islands garden plants have estab- 
lished themselves such as species of Mesembryanthemum, 
Geranium, Physalis, Muhlenbeckia, while species of 
Veronica, EHuonymus, and Escallonia form luxuriant 
hedges. St. Agnes is the reputed locality for Acanthus 
mollis, L. I failed to find it there, but saw two plants on 
St. Mary's, where in all probability they were escapes from 
cultivation. 
TWEEDSIDE ALIEN PLANTS. By Miss IpA M. HAywarp. 
The Tweed district is specially rich in alien plants—a 
result due doubtless to the fact that the river and its tribu- 
taries flow through so many wool-manufacturing towns. 
Seeds picked up in their native countries become detached 
from the wool in the process of washing. A considerable 
proportion find their way into the river and, ultimately 
becoming lodged in congenial soil, take root and grow: 
Thus on deposits of alluvium and banks of shingle natives 
