48 SCHMIDLE, PITE LAPPMARKS U. VESTBRBOTTENS StJSSWASSERALGEN. 



clusis), eadem forma, qua zygotse E. hinalis formfe in Hed- 

 wigia 1895 pag. 79, tab. 1, fig. 13 sed multo majores. 



22. [E.] inerme Lund, Desm. Suec. pag. 20, tab. 2, fig. 3. 

 N:o VIII, XXII. 



Forma scrobiculata. Tab. nostr. II, fig. 30. 



Forma varietatis ahoensis (Elf.) Rac; semicellulse tribus 

 tumoribus (siiigulo basali, binis suprapositis) ornatse, tumo- 

 ribus aut omnibus, aut tantum binis suprapositis scrobicn- 

 latis; membrana prseterea scrobiculis pluribus (3—8), regula- 

 riter positis, ornata; anguli laterales, basales et medii item- 

 que scrobiculati. 



N:o XXII. 



23. [E.] denticulatum Gay. 



N:o VIII, XVI, XXII, VI, XVIII, XVII, XV, VII, 9, 



10, 14. 



24. [E.] Boldtii Schmidle, Alp. Alg. tab. 16, fig. 5. 

 N:o VIII, XVII. 



Micrasterias Ag. 1827, era. Menegh. 1840. 



1. [M.] pinnatiflda Ktzg., Spec. pag. 171, 

 N:o XXII. 



2. [M.] truncata (Corda) Breb.: Ralfs, Brit. Desm. pag. 75, 



tab. VIII, fig. 4. 

 N:o XII, VIII, XVI, XV, XXII, XVII. 



3. [M.] Jenneri Ralfs, Brit. Desm. pag. 76, tab. XI, fig. 1. 

 N:o XIX, XVII. 



4. [M.] rotata (Grev.) Ralfs in Ann. Nat. Hist. XIV, pag. 



259, tab. 6, fig. 1. 

 N:o XIX, II, XV, IV, XX. 



Forma subgranvilata ScHMrDLE. 



CellulsB inter cornus apicales lobi mediani granulatse. 



N:o V, XIX. 



5. [M.] denticulata Breb. in Ralfs, Brit. Desm. pag. 70, 



pag. 7, fig. 1. 

 N:o XIX, XXII, V. 



