A. CLEVE-EULER, DIAT. FLORA OF FINLAND. 73 



Ustr. D. Mar. Alg. Faroes — 0stkup, E., Diatoms from the Marine 

 Algae of the Faroes. 



Ostr. Frcshw. D. Faroes — 0stkup, E., Freshwater Diatoms from 

 the Faroes. Botany of the Faroes, Part I, 

 Kopenhagen 1901. 



(Jstr. D. N. E.-Greenl. — Ustkup, E., Diatoms from North-East Green- 

 land collected by the Danmark-Expedition, de- 

 termined by Ernst 0strup. K0beuhavn 1910, 



0s(r. Danske D. — 0stkup, E., Danske Diatoméer. K0benhavn 

 1910. 



Addenda et corrigenda. 



p. 3: For Sceptronels marina and Podosira dubia I have not found 

 any records from the Arctis. 



p. 12: Biploneis Smithil Bréb. v. permagna n. var. must not be 

 confused with Nav. fiisca v. permagna Pant., that Cleve puts 

 to D. major and Peragallo has figured in D. mar. de France 

 Tab. 20, f, 1 under the inappropriate name of D. Smlthii 

 V. permagna CI. 



p. 19: Cgmhella lanceolata Kütz. v. infläta n. v., PI. 1, f. 17, must 

 be altered to C. lanceolata v. ventricosa n. v., the name in- 

 fläta being already occupied for a form from the Balaton-lake 

 (Pant. D. Balat. See Tab. 1 f. 8). 



p. 24: The form named Nav. cancellata Donk. var. retusa Bréb.? 

 (pi. 1 f. 20) ist most probably the Nav. pseiidoretusa Per., 

 D. mar. de France Tab. 11, f. 17. Cfr. also what is said 

 of Pinnularia elipeata, p. 32. 



p. 36: Ampliora polaris Ustr. may probably be united with JL. os^re- 

 aria Bréb. v. vitrea Cl., especially as figured in Per. D. mar, 

 de France. Tab. 49, f. 14 (Distr.: ubiqu.). 



