DOUBTFULLY NATIVE WESTERNESS PLANTS 183 



LOLIUM PERENNE, Z., is a denizen probably. It is common along 

 roadsides and footpaths and in waste places, and grows oc- 

 casionally on sandy shores. Is one of the chief plants which 

 first cover neglected roads. 



(AGROPYRON REPENS, Beauv., is native, though rare and confined 

 to sandy shores. It is not a weed of cultivation in the district 

 as yet, but it is so in Skye.) 



DENIZENS. 

 CONIUM MACULATUM, Z., is rare, near ruins and in cultivated fields. 



GALIUM APARINE, Z., is common on rough ground near cultivated 

 fields, in waste places, and near ruins. It is frequent on 

 shores both shingly and sandy, on the latter often becoming 

 dwarfed. It never occurs at any distance from cultivation 

 except on the shores ; and even there is most frequent near 

 cultivated ground. 



ARCTIUM MINUS, Bernh., is rather common in waste places, by 

 roadsides, and near ruins and sheep-shelters. 



CNICUS ARVENSIS, Hoffin., is partly a colonist. It is locally common 

 in cultivated fields and by roadsides, but rare on sandy shores. 

 In general it is a scarce plant in the district, though abundant 

 in the north of Mull and in Eigg. 



GALEOPSIS TETRAHIT, Z., mostly a colonist, is common in cultivated 

 fields, in waste places, by roadsides, and on shores near houses. 

 The var. bifida (Boenn.) is the prevalent form, and occasionally 

 spreads to heathy pastures, but it is not permanent there. 



PLANTAGO MAJOR, Z., is common along sheep and cattle tracks, 

 footpaths and roadsides, and on waste places and shores near 

 houses. The var. intermedia (Gilib.), occurring on gravelly 

 and sandy shores, is probably a native. 



POLYGONUM AVICULARE, Z., is frequent in waste places, cultivated 

 fields, and on shores, mostly near houses. A plant between 

 var. littorale (Link.) and P. Raii, Bab., is native on sandy 

 shores. 



POLYGONUM HYDROPIPER, Z., is common in cultivated fields (especi- 

 ally among turnips and potatoes), in ditches near them, 

 and along roadsides, as well as on shores, most commonly 

 near houses or near the outlet of streams which pass through 

 cultivated ground. In such places it can nearly always be 

 traced to the throwing out of rubbish-heaps. Although more 

 permanent than the following, its habitats can generally be 

 traced to man's agency. 



