i8o ANNALS OF SCOTTISH NATURAL HISTORY 



LATHYRUS PRATENSIS, L. Native? Uncommon, along sides of 

 fields and on wall tops chiefly, rarely on sea cliffs, and then 

 only in suspicious places. It is occasionally introduced with 

 nursery plants. It is common in Mull among rocks, where it 

 looks like a native. 



PRUNUS SPINOSA, Z., is native only on the basaltic rocks of Ard- 

 namurchan, having been planted in other places. It is not 

 common. 



(PRUNUS PADUS, Z., is native, but rare, in copses and on islands on 

 lochs.) 



(RUBUS iDyEUS, Z., is native, and common on rocky heaths.) 



(PYRUS AUCUPARIA, Ehrh., is native, and common in copses and 

 glens and on sea cliffs.) 



(CRATVEGUS OXYACANTHA, Z., is native, and common in copses and 

 on sea cliffs, and also is planted for a hedge.) 



(EPILOBIUM ANGUSTIFOLIUM, Z., is native but rare, growing only on 

 limestone in Ardnamurchan.) 



(HEDERA HELIX, Z., is native and very common in woods and on 

 rocks and sea cliffs.) 



VALERIANELLA OLITORIA, ZW/., is a doubtful native. It is very rare, 

 occurring in one station only on a sandy bank near the sea, 

 remote from cultivation. I have not met with it in this district 

 as a weed of cultivation. 



SENECIO SYLVATICUS, Z., is a doubtful native. It is rare. Among 

 rocks about two hundred yards from crofts. It does not in- 

 crease near the houses, but keeps to the rough ground among 

 native vegetation. 



SENECIO JACOB^A, Z., is a denizen probably, though very common 

 on roadsides near houses, in pastures, and on sea cliffs near 

 where cattle graze. Individual plants occur on the moors where 

 cattle are kept, but they do not obtain a permanent footing unless 

 they reach the gravelly margin of some hill loch. Although 

 frequently seen remote from dwellings, this plant can nearly 

 always be traced to following cattle. On roadsides its frequency 

 is in proportion to its closeness to houses. I have in a few 

 cases been able to follow its course to remote places. 



CNICUS LANCEOLATUS, Willd., is a denizen probably, but is common 

 in waste places, on roadsides and shores, in cultivated fields, 

 and near cattle shelters. Wind appears to be a more effective 

 agent in its distribution than the wool on sheep, as it usually 

 spreads up the bottom of a valley and reaches a greater eleva- 

 tion than that at which it is found at on the sides. 



