1888-89.] the Coasts of Lapland and Siberia. 



465 



are known from the mountain regions of our own country, 

 and I have before me a list of plants collected by Mr 

 Henry Tuke Mennell, F.L.S., during a single day spent (in a 

 lower latitude) among the Eocky Mountains. Out of this 

 list of about 170 species there are rather more than 70 genera, 

 and between 60 and 70 species which are identical with those 

 found in Lapland or about the Yugor Straits. Very com- 

 plete knowledge as to the further distribution of the plants 

 here enumerated may be obtained from Dr Warming's supple- 

 ment to his Gr07ilands Mora, and from the older, yet more 

 perfect, monograph by Sir Joseph Hooker. 



The " Labrador " collections afford a very striking instance 

 of the fact emphasised by Sir Joseph Hooker, that it may be 

 exceedingly misleading to judge as to the distribution of 

 Arctic plants from records of isolated floras, and it is only 

 possible to treat the facts recorded in the accompanying 

 Summary from the point of view of local floras. 



The list of Musci, &c., from the shores south of the Yugor 

 Straits which is here given must not be considered by any 

 means as an exhaustive one. They were far from scarce, 

 and it is not probable that I obtained other than a re- 

 presentative collection of the very commonest. The species 

 here enumerated were almost without exception from marshy 

 places : — 



Swartzia capillacea, He.dw. 

 Dicranum scoparium, Hedio. 

 „ fuscescens. Turn. 

 Aulacomnion palustre, Schw. 

 Paludella squarrosa {L.). 

 Meesia tristicha, B. ^ S. 

 Tetraplodon urceolatus, B. <^ S. 

 Webera nutans, Uedw. 

 Leptobryum pyriforme, Schimp. 

 Milium hymenophyllum, B. Sf S. 

 Stereodon Bambergeri (Schimj).). 

 Hylocoinium Schreberi ( Willd.). 

 Leskea atrovirens, Hartm. 



Amblystegium uncinatum, 



Hedw. 

 Campylium stellatum (Schreb.). 

 Camptothecium nitens (Schreb.). 

 Brachytheciixm glareosum, B. 



4- S. 

 Brachytheciumcirrhosum(ASc7iw.) 

 Sphagnum acutifolium, Ehrh. 

 Jungermannia minuta, Crtz. 

 Gymnocolia inflata, Dumort. 

 Blepharostoma trichophylla, 



Dumort. 

 Blepharozia ciliaris, Dumort. 



Lichencs, as before mentioned, were not so plentiful as 

 might have been expected. I am unable at present to re- 

 port upon these. 



Fresh-water Algce were not uncommon, Vaucheria and 

 Spirogyra appearing plentifully in the various smaller pools 



