* 



Acta Societatis pro Fauna et Flora Fennica, 47, N:o 4. 37 



benda sit. Forma fennica sub apice lobi polaris urnifor- 

 miter dilatata est; praeterea pediculus lobi polaris longior 

 gracilior, omnes lobuli graciliores profundius divisi sunt; 

 quibus rebus satis a forma typica differt. Long. 209, lat. 

 194, isthm. 21, apex (cum proc.) 125 p. (N:o 680 a). — 

 Cfr. etiam West, Mngr. t. 52 f. 7; Lagerheim, Desm. Amer. f. 4. 

 Tab. 6 fig. 11. 



var. pseudocrux, nova var. Cellulae minores minus pro- 

 funde insectae, lobo polari (exclus. process.) haud minus 

 lato, quam longo; a vertice visae crassiores. Long. 142— 

 137, lat. 125—124, crass. 42, apex 57—61, isthm. 21 ,«. (N:o 

 679 a, 679 b). Cfr. etiam M. crux melitensis „Ubergangs- 

 form z. Af. furcata" Bulnheim in Hedwigia 1862 t. 10: i f. 

 1 b; M. crux-m. f. minor Turn., East-Ind. t. 5 f. 4 c, et 

 Schmidle, Ost-Afr. t. 3 f. 14. 



Tab. 6 fig. 12—14. 



Si forma nostra cum M. radiata coniungenda est, 

 quae erit dissimilitudo inter earn et M. crucem melitensem? 

 In West, Mngr. II p. 117 et p. 115 dicunt auctores: „M. 



crux melitensis is , easily distinguished from M. radiata 



by its smaller size and the much shorter and stouter lobu- 

 les, which are never deeply furcate." At formae nostrae 

 ftnem magnitudinis frangunt! Tamen his in rebus discrepant: 



1) M. radiata, angulis lobi polaris attenuatis in proces- 

 sus plus minus elongatos productis; 



lobis lateralibus profundius insectis in processus atte- 

 nuates productis; a vertice visa polis attenuatis; 

 cellulae saepe (sed non semper) maiores. 



2) M. crux melitensis, angulis lobi polaris in processus 

 breves nee attenuatos nee elongatos productis; 



lobis lateralibus non profunde insectis, numquam in 

 Processus attenuatos elongatos productis; a vertice visa po- 

 lls non attenuatis; 



cellulae minores. 

 **• M. rotata (Grev.) Ralfs; Stange, Micrast.-Formen 



fig. IX: i—i2. Formae valde variae. [Cellulam inveni 



cuius altera semicellula M. cornutae similis fuit. Cfr. 



West Mngr. p. 124 et t. 51 f. l.J (N:o 199, 271, 507 etc.) 



