LIClIEN"-rLOKA. OF >"0ETHEIi2f EITKOPE, 393 



■ 



10. Nepliroma arcticum^ L. Alps of Lapland (^Solander, in IleV' 



lariuniy British Museitni). 



11. Umhilicaria arctica, Smrf. Saxlcoloiis, ou alpine rocks, Island 



of Ottero, Nordland {Smrf. U. I.). 



12. Fannaria trii^topliyllaj Acli. Corticolous) near Cliristiania 



{Smrf. U. L). 

 13. S^iiamariacrassa^DC, 



^f- 



14. Lecanora varia^ Ach., var. symmicta^ Acli. Cortlcolous, on 



rf. U. I.) 



fi 



76). Saxi- 

 alnminous 



■'f- 



16. Lecidea gloUfera, Acli. KongsvoH and otlier parts of the 



Dovrefjeld. 



17. X. c«;jj;'ea, Smrf. '^necVa.tien {Smrf. U.I.) . 



IS. L. arctim, Smrf On tlie higliesfc mountains of Nordland 



'/■ 



rf- 



Comparing my present list of Icelandic Lieliens with that which 

 I published in 1861, and which enumerates all lichens collected in 

 Iceland by various botanists up to that date, the most striking 

 re^iult is, that, as regards the number of species and varieties, the 

 former is fully as large as the latter ; in other words, my week's 

 collection around Eeykjavik equals the collections of all previous 

 l>otanists in all other parts of the island. Such a result merely 

 indicates the great imperfection of our present knowledge of the 

 Lichen-flora of Iceland. My own collection amounts to 83 species 



) 



' I'lora ' of 1861 enumerates 82. The latter includes 52 lichens 

 which were not found by myself, and which fall to be added to my 

 list of 83. This gives 135 as a total of the Lichen-flora of Iceland, 

 so fir as it is at present known with any degree of exactitude. 

 This, however, is probably far short of the real total, many species, 

 varieties, and forms remaining to be added by the research of 

 future travellers *. 



* I liaye since found the foUo^ving species and varieties (which are not iu- 

 clncled in the above-mentioned enumerations of Icelandic Lieliens) recorded m 

 Aries's Lich. Arctoi [vide foot-note |, p. 366]: 



1. Lejffof^him micsckolum, Sw., Ynhl. 



2. Neuropogon melaarcmthus, Ach. [Z?V^fH sulphureu,% Fl. I^l], VabK 



3. Alecioria juhata, L„ var. chalybeifomiis, L., Steenstmp. 



4. A. ochrokuca, Ehrh., var. cincinnata, Fr., Stccustrup. 



2p2 



