The Scottish Naturalist. 



33 



new to the county, or requiring confirmation. The district is not 

 one in which to expect anything particularly novel, and with the 

 exception of the interesting Glyceria from Hildasay Island, no- 

 thing of importance in this way was detected. I could not help 

 being struck with the total absence of Hieracia from the district, 

 which is not wanting in likely localities for these plants ; indeed, 

 I have seen none of the species in the Shetland Islands, excepting 

 one at Mid Yell Voe, and the three species that are so abundant 

 about the Loch of Cliff and Burrafirth, in Unst. There are also 

 records from Ronas Voe and Northmavine, quite in the north of 

 the Mainland ; so that the genus seems to be very unequally dis- 

 tributed. I hope to have another opportunity of visiting Hildasay 

 Island, and of noting all the plants that are to be found there. 

 This was done only partially last year, owing to the visit being 

 necessarily of very short duration, and to the fact that some time 

 was spent upon the Loch. Hildasay is, I believe, one of the largest 

 untitled islands in the group ; it has an area of about three- 

 quarters of a square mile ; and, with the exception of a small plot 

 attached to a cottage, is devoted to grazing. Hence the many 

 u denizens " or " colonists " which form so large a part of the 

 Flora of the ordinary lowland districts, and which now appear as 

 though more or less truly wild in these, are entirely wanting. 



I again thank the various botanists who have kindly examined 

 and reported on a few of the more critical forms. The abbrevia- 

 tions used are the same as those of my former papers, viz.: — 



* — believed new to Britain. 



% — not recorded for the county in Top. Bot., Ed. II., or in 

 Bennett's " Additional Records," unless with some form 

 of query. 



Cochlearia groenlandica L.— This has retained its charac- 

 ters for two years in cultivation side by side with C. alpina Wats. 

 The ripe capsule remains veinless, or shows extremely faint 

 veins, while that of C. alpina has prominent elevated veins. 

 The very long stem-leaves are also characteristic of C. groenlandica, 

 and, both in the wild and cultivated specimens, agree well with 

 Dr. Lange's description ("Consp. Fl. Groenland." p, 35), u foliis . . 

 caulinis breviter petiolatis, rhomboideo-ellipticis, integris vel subhas- 

 tato-trilobis." The two plants above mentioned, although grown 

 twenty miles to the south of London, have scarcely changed at all 

 during the two years' cultivation, and have not even become more 



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