330 jons. Hovi: i'i:i kusk.n; 



sicnsis V. lanccohi, N.radiosa v. miiuilissiiua, Pininilaria horealis. P. inolaris, 

 P. siibrapitala. P. s. v. sublanceolata . P. viridis v. comnnilala. Stauroncis 

 afjreslis 



127. liocky wall willi tiickliii-^ walcr; Vcsldalur. alliliide ]')0 in. */?. 

 The alj^ae lonned niucihij^inoiis ikirk palclies in llie sluiic. 

 Cah)lhrix ])arietina . 



12S. .NUj.s.s Ironi cracks in iHJcky wall in \esldaliir ■'7. 



iMesot;enium sp., Achnanthes lanceolata, A. marginulata, Caloneis 

 fasciata, Cynil)ella ('i.stnla, Dialomella Ballouriana. Diploneis ovalis v. 

 ohlonj«ella, Fiinolia diodoii v. diniinnta, F. <4racilis. K. prærii])la v. nuisci- 

 cola. Fragilaria constrnens v. jiusilla. F. laevissinia, F. miitahilis, Xavicula 

 Atonius, N. cocconeiforniis. N. j)erpnsilla. N. p. v. Flotowii, Nitzschia de- 

 hilis. N. Palea, Pinnularia horcalis. P. gracillima, P. viridis v. comnuitata). 



129. Dark spots on rocky wall in Vesldalur; allilude loO in. */7. 



(Zy{?ogonium ericetoruni, Desmonema Wrangelii, Schizothrix arenaria, 

 GloeocaiJsa Magma, Achnanthes niarginulata, Caloneis fasciata, Denticnla 

 frigida. Dialomella Balfouriana, Diploneis ovalis v. ohlongella, Eunotia 

 gracilis, F. paludosa, Iv præriipta f. curla, Hantzschia ani|jhio\ys, Melo- 

 sira Roeseana, Meridion circulare, Navicula cocconeiforniis, N. contenta, 

 N. mutica f. Cohnii. X. Kotschyi, N. Rotæana. X. perpusilla, N. terrestris, 

 Pinnularia horcalis, P. Brehissonil, !'. gracillima, P. inlerinedia, P. lata, 

 P. parva v. minuta, Synedra Acus, Tahellaria flocculosa;. 



131. In a yard in Sey<Msfjor(^ur ^/t. 



(Prasiola crlspa, Hantzschia amphioxys v. genuina. Navicula Atomns, 

 iV. nitrnf)hila, Pinnularia borealis . 



North Iceland. 



133. Ditcli by the roadside soulh of Akureyri ^li. 



(Dialomella Balfouriana, Meridion circulare, Xavicula Atomus, X.cincta 

 V. Ilcn/h'ii, iV. c. v. leplocephala, X. contenta. Nilzschia Clausii, N. communis 

 i>. abhicviala. X. Ihermalis v. minor, Pinnularia appendiculata p. hudensis, 

 P. parva v. minuta). 



13.'). On turf hy the roadside a little south of Akureyri ^/t. 



I Prasiola crispa. (^ymbella venlricosa. Dialomella Balfouriana. Di- 

 ploneis ovalis V. ohlongella, Hantzschia am|)hioxys v. xero|)hila. Xavicula 

 cincla v. Heufleri. X. mutica f. (lohnii, N. ni. /'. minima. X. m. f. ihomhoidea, 

 X. viridula. Xitzschia amphihia, X. perpusilla, Pinnularia ai)pcndiculata 

 V. irrorata. P. horealis, Bhopalodia venlricosa . 



137. Xaked ground near the high road south of Akureyri ^"'7. 

 Dialomella Balfouriana. Hantzschia amphioxys v. xerophila. Xavicula 



cincla v. Heuficri, X. mutica f. Cohnii. X. m. f. minima, X. m. f. ventricosa, 

 Nitzschia communis v. abhicviala, Pinnularia horealis, P. parva v. minuta). 



138. Clay washed down hy Ihc rain, wilh a scallercd growlh of 

 mosses and protonema; south of Akureyri ^^h. 



(Hantzschia amphioxi/s v. xcro/>hiht. Navicula cincla v. Heu/lcri. X. ter- 

 restris. Pinnularia horealis). 



