1888-89.] the Coasts of Laplcmd and Siberia. 463 



Geranium sylvaticum, Umpetrum nigrum, Trifolium repens, 

 Vicia Cracca, V. hirsuta, Spircea Ulmaria, Eubus saxatilis, 

 Geiim rivale, Potentilla procumhcns, Alchcmilla sps., Sedum 

 acre, Epilohium sps., Anthriscus sylvestris, Ligusticum scoticum, 

 Archangelica officinalis, Linncea horealis, Cornus suecica, 

 Valeriana sambucifolia, Carduus hcterophylhts, Sonchus 

 alpinus, Saussurea alpina, Solidago Virgaurea, Gnaphalitim 

 sps., Antennaria sps., Hicracium sps., Melampyrum, Rhin- 

 anthus, Campaimda rotundifolia, Vaccinium Myrtillus, V. 

 Oxy coccus, Andromeda polifolia, Arctostaphyllos alpina, Calluna 

 vulgaris, Phyllodocc cceridea, Loisclcuria procumhens, Sedum 

 palustre, Pyrola sps., Diapensia lapponica, Menyanthes 

 trifoliata, Mertensia marifima, Veronica sps., Bartsia alpina, 

 Euphrasia officinalis, Plantago major, Pinguicula mdgaris, 

 Trientalis europaxi. Polygonum Aviculare, Rumcx sps., 

 Urtica dioica. Orchis maculata, Triglochin sps., Tofieldia 

 palustris, Juniperiis communis, var. nana, Lycopodium sps., 

 Aspidium sps., Polypodium. sps., and Cystopteris fragilis. 

 The species of Salix were different ; many of the commonest 

 species of Carex were absent. 



To place these facts in another manner, we may say that 

 out of 110 of the commonest species observed during the 

 voyage of the " Labrador " in the extreme north of Lapland, 

 or upon the coast of the Yugor Straits, only 25 were found 

 in the two countries; 20 species were distinctive of Siberia, 

 whilst 65 were absent from the shores of the Yugor Straits, 

 though present in identically the same latitude in Lapland. 



It is more than probable that some of the above-men- 

 tioned plants are prevented from reaching the northernmost 

 shores of Siberia by reason of the greater cold; it is certain 

 that a few are absent because no cultivation of land is 

 attempted or possible, but a glance at the above list will 

 show that rock-loving species (those of Area III.) are the 

 ones most conspicuously wanting. Certain of these, as will 

 be seen on comparison with the list given in the Summary of 

 all species known from Novaya Zemlya, are found in the 

 more rocky places along the coasts of that island, whilst the 

 greater number are known from the Urals or from Sibeiia 

 farther to the east and south. We may notice that some 

 of them occur in the following list of plants collected near 

 Turukansk, a town on the east bank of the Yenisei, within 



TRANS. BOT. SOC. VOL. XVII. 2 I 



