I9IO. PRAKGKK. — Phanerogams and Vascular Cryptogams. 191 



onl}', exactly as described by Barrington thirty-three years 

 ago. 



The weed flora likewise was found to have changed very 

 little. The characteristic species as listed by Barrington are 

 all there still, but a few of the plants in the list of additions 

 may be recent introductions. 



If I give the plants in Barrington's list not seen on the 

 recent occasion, the plants common to both lists can be 

 obtained by anyone desirous of doing so. I add in a parallel 

 column the species noted last July which have not been re- 

 corded from the island previously. 



Noted by Barringtox. Noted by Praeger. 



Brassica Napus. Cardamine pratensis. 



Lythrum SaHcaria. Coclilearia danica. 

 Haloscias scoticiini. graenlaudica. 



Crithmum maritimuin. Areiiaria peploides. 



Cnicus pratensis. Sonchus aivensis. 



Centaurea nigra. Lycopsis arvensis. 



I/inaria vulgaris. Galeopsis Tetrabit. 



Stachys arvensis. Polygonum Persicaria. 



Atriplex angustifolia. Atriplex hastata. 



Babingtonii. Sparganium minimum. 



Orcbis maculata. Triglocbin maritimum. 



Luzula maxima. Juncus lamprocarpus. 



Juncus conglomeratus. Potamogetou pusillus. 

 Scbaenus nigricans. pectinatus. 



Carex extensa. Scirpus caespitosus. 



Authoxantbum odoratum- Carex flava. 



Alopecurus geniculatus. Agrostis vulgaris. 



Agrostis canina. Poa annua. 



Poa pratensis. Festuca ovina. 



Festuca rubra {var. duriuscula). Isoetes lacustris 



Blecbuum vSpicant. Cbara fragilis. 



Lastrea dilatata. Nitella opaca. 



To the right-hand list may be added the two grasses already 

 mentioned as found by Mr. S. Wear. 



Of the plants above not seen by me, there is no reason to 

 think that any of them are now extinct. Most of them were 

 seen b)' Barrington in one station only ; and this was in 

 several cases on the Dun, a place I had not time to explore. 

 Neither is it probable (as v.'ill appear from an examination of 

 the second list) that more than one or two of the plants seen 

 only by me are new-comers ; the most likel}' species to belong 

 to this category are the Lycopsis, Galeopsis, Polygonum and 



