32 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



situation, and afFords no little field foi' botanical 

 seai'ch. My explorations on this occasion were con- 

 fined chiefly to its western side, to the slopes 

 leading down to the rocky seashores, and to the 

 high grass-grown cliffs at Tangusdale, a short 

 distance inland, the exposure of which is to the 

 north-west. While in Barra I received a letter from 

 Mr. F. J. Hanbury, F.L.S., editor of the last edition 

 of the London Catalogue (and in whose company I 

 had the pleasure, a month later, of making the 

 ascent of Ben Lawers), asking that I would secure 

 for him specimens of all the Hieracia I could meet 

 with, for use in connection with the illustrated 

 Monograph of the British Hieracia, on which he is 

 noAV engaged. He also requested that before drying 

 any specimens I might collect for him, I would note 

 particularly the colour of the styles and the form 

 of the involucre. 



On the cliffs alluded to, Hieracia were in 

 abundance ; and specimens which were taken and 

 pressed have since been transmitted through Mr. 

 Bennett to Mr. Hanbury, who has so far determined 

 from among them the following four species, viz.: 

 Hieracium anglicum, Fries, H argenteum, Fries, H. 

 murorutn, L., form, and H. scoticum, F. J. Hanbury. 



On the same cliffs the grass Brachypodium sylva- 

 ticum, R. and S., occurred, also the Scotch Burnet 

 Rose {R. spinosissima, L.). 



The elegant-leaved Trifolium medium, L., was 

 observed in various parts of the island, both inland 

 and at the edges of rocky banks overhanging the 

 sea. In the latter situation the plants, though not 

 tall, were luxuriant, and the terminal heads, which 

 both Hooker and Hennedy describe as "shortly 

 peduncled," had in some cases a peduncle of two 

 inches. 



Among Cyperacese, one of the most plentiful was 

 Schoenus nigricans, L., found in especial abundance 

 on the sovithern slopes leading doAvn to the Sound 

 of Vatersay. 



