390 THE FLOWERING PLANTS OF NOVAYA ZEMLYA, ETC. 



DoLGOi Island 



Lies between 69° 4' and 69° 20' N. lat. ; it is about seventeen 

 miles in length from north to south, and in width from a mile and 

 a half to two miles. It is five miles due north from Cape Medinsky 

 Zavarot, of the mainland of Russia. The island is flat, the 

 greatest elevation not rising more than fifty feet above the sea. 

 The rock exposures, which are visible all round the shores of the 

 island, consist of finely crystalline, hard unfossiliferous dolomitic 

 limestones, probably of palaeozoic age. The surface is covered with 

 marine boreal deposits ; in many parts these are overlain by modern 

 peat deposits, and a network of shallow lakes and meres occupies at 

 least one-half of the island, which, viewed from the sea, looks like 

 a piece of the adjoining mainland tundra surrounded by the ocean. 



The proofs of recent emergence are strikingly apparent, and 

 the natural surmise is that we should find the flora of the island 

 simply an extension of that of the neighbouring mainland. An 

 examination of its flora shows this to be the case, for, out of 

 seventy-three phanerogams and two vascular cryptogams found 

 on the island, all but one, Tojieldia jmlustris, are recorded from the 

 shores of Yugor Straits, or the great tundra of the Samoyeds, 

 in Eastern Europe. The most striking characteristic of the flora 

 of Dolgoi Island is the abundance of two species of EricacecB, 

 namely, Cassiopeia tetragona and Andromeda Poli/olia, and likewise 

 of Empetrum nigrum.. 



In a hasty examination, extending over a few hours, of an 

 island as large as Dolgoi, the list of its plants cannot have been 

 exhausted ; but there is no reason to suppose that future investi- 

 gation will alter the conclusion here arrived at, that the flora of 

 Dolgoi Island is a reduced representation of that of the adjacent 

 mainland. 



The following is a list of the plants obtained on Dolgoi Island, 

 20th July, 1897:— 



Rannncidus Pallasii Schl. Hedysarum ohscurum L. 



Fi. sulphureus Sol. Eiibus ChamcBmorus L. 

 R. hyperboreus Roth, f. Samoy- Comarum palustre Li. 



edorum Rupn. Dryas octopetala L. 



Caltha palustris L. Hippuris vulgaris L. 



Papaver nudicaule L. Saxifraga oppositifulia L. 



Cardaminc pratensis L. 8. Hirculus L. 



Eutrema Edwardsii R. Br. S. aizoides L. 



Cochlearia feyiestrata R. Br. 8. coinosa Poir. 



Draba alpina L. 8. ccespitosalj. f. decipiens Ehrh. 



D. Fladnizensis Wulf. 8. cernua L. 



D. repens Bieb. 8. hieraciifolia Wald. & Kit. 



8ilene acaulis L. Chrysospleuium alternifoliuin L. 



8tellaria. humifusa Rottb. Parnassia palustris L. f. alpina 

 8. loiigipes Goldie. Drude. 



Cerastium alpinum L. f. Jiirsutum 8edum Rhodiola DC. 



Koch. Epilobium palustre L. 



Arenaria ciliata L. Valeriana capitata Pall. 



