32 ERNST ØSTRUP 



*Var. dimimüa H.V. H. Cl.Syn. 1. c. V. H.Trt. 1. c, fig. 84 (N.Breb. dim.). 



8 samples (S. 1, S.W.I, N. 1, E. 4, S.L.I). Hot spring: 1. 

 Area: Eur., Am., Grl. 



Var. linearis 0. M. O. M. Rieseng., 25, Tab. Ill, fig. 12. 



Yttri Skögar (S.), H. Js. 

 Area: Eur. 



Pinnularia bryophila sp. now, Tab. nost. Ill, fig. 46. 



Long: 43 /u, lat: 9,6 /<, str. 12 in 10 /<. 



Valva lineari, apicibus rotnndatis. Raphe area hyalina lata, 

 media in parte valvæ, in fasciam, in qua uno in latere stria singula 

 adest, dilatata cincta. Fissuris terminalibus et extremitatibus me- 

 dianis raphes in partes diversas inclinantibus. Striis radiantibus, 

 apices versus convergentibus. 



Seyôisfjord (E.) B. P. On moss. 



*Pinnularia divergens W. Sm. var. elliptica Grun. Cl. Syn. II, 79. 

 Grim. Fz. J., Tab. 1, fig. 19 (Nav. div. ell.). 



64 samples (S. 6., S.W. 16, N.W. 2, N. 7, E. 33. Hot spring: 1. 



Area: Eur., Af., Am., Aust., Grl., Fr. J. 



Var. elongata Øst. Øst. D. D., 98, Tab. Ill, fig. 68. 

 Staöastaöur (S.W.) H.Js. 

 Area : Eur. 



*Pinnularia divergentissima Grun. Cl. Syn. II, 77. V. H. Syn., Tab. 

 VI, fig. 32. (Nav. div.). 



9 samples (S. 2, SW. 3, E. 4). 



Area : Eur., As., Am., Aust., Grl., J. M., Spb. 



Pinnularia islandica sp. nov., Tab. nost. Ill, fig. 47. 



Long: 82 //, lat: 14 /<, str. 9 in 10 ju. 



Valva fere lineari, apicibus rotundatis. Raphe area hyalina 

 satis lata, mediam partem versus patescente ibique aream longinam 

 magnam efficiente, cincta. Striis radiantibus, apices versus conver- 

 gentibus. 



Skutustaôir (N.) B. P., Lagarfljôt (E.) B. P. 



Pinnularia karelica Cl. Cl. Syn. II, 78. Cl. Fini., Tab. I, fig. 6. 

 A. S. Atl., Tab. CCCXI, figs. 14—15. 



Seyôisfjord (E.) B. P. 



Var. rostrata var. nov., Tab. nost. Ill, fig. 48. 



Long: 41 //, lat: 11 /<, str. 12 in 10 u. 



Valva lineari, apicibus late rostratis. Raphe area hyalina, me- 

 dia in parte valvæ in aream magnam rotundatam dilatata, cincta. 



Grimsâ (E.) B. P. 



The somewhat wider striation notwithstanding, this form must surely 

 be considered as a var. of Pinn. karelica. 



