96 ANNALS OF SCOTTISH NATURAL HISTORY 



GLYCERIA MARITIMA, Mert. and Koch. Common on the salt marsh 

 and muddy shore between Urvaig and Salum. A larger and 

 more erect form occurs with rachis and panicle branches rough. 

 This roughness of the panicle is not uncommon on this coast, 

 and varies greatly in amount. 



FESTUCA ROTTBCELLIOIDES, Kunth. Locally common in sandy 

 places ; Scarinish, Urvaig, Chad. 



FESTUCA OVINA, L. Common. 



Var. capil/ata, Hackel. Ballyphetrish. 



FESTUCA RUBRA, L. Very common on sandy pastures and dunes. 

 A tall, large-flowered form also occurs on dunes with Ammophila. 

 Var. pruinosa, Hackel. Rocky shores and sea cliffs. 



FESTUCA ELATIOR, L. Rare ; Cornaig. 



BROMUS MOLLIS, L. Common by roadsides and fields. 



LOLIUM PERENNE, L. Very common on sandy and cultivated 

 ground and roadsides. 



AGROPYRON REPENS, jBeauv.'Very rare ; only a few plants seen on 

 the shore, at the side of a cultivated field. They probably had 

 been weeded out of the field, as they had not the appearance 

 of shore forms. 



AGROPYRON JUNCEUM, Bcauv. Very common on sandy shores and 

 dunes. On this coast a form occurs with leaves which are flat 

 in the fresh state, remaining to a considerable extent flattened 

 out under pressure when dried. I had hitherto taken this form 

 to be the Triticum acutum of Syme's " English Botany " ; and 

 I think this was the opinion, to some extent, of those botanists 

 to whom I had submitted specimens. I have lately sent to 

 Professor Hackel a series of specimens of this form. He 

 considers that they are true junceum, and adds : " The true 

 A. acutnm (Triticum acutum, DC. !) is a hybrid between 

 T. littorale, Host (which does not grow on the northern shores 

 of Europe) and T. junceum. What North European botanists 

 call A. acutum are mostly hybrids between A. repens and 

 junceum, but there seem to exist also distinct forms of not 

 hybrid origin. The question is somewhat entangled and 

 requires field observation, which I cannot procure." A plant 

 from the sandy shore of Eigg, growing with A. junceum and 

 repens, Professor Hackel thinks may be the hybrid. This 

 recognition of hybridity ought at least to assist in clearing up 

 the difficulties with regard to these shore forms. 



NARDUS STRICTA, L. Common in turfy places. 



PTERIS AQUILINA, L. In local patches, but not generally spread. 



