5" 



sixes grown on Sargassum, }. Fig. 2: vertical sections of 

 two fronds; one with the basal portion, 2 mm. in diam., the 

 other 5 mm.; }. Fig. 3: vertical section of frond, magd. f. 

 Fig. 4: portion of the vertical section of frond magd., 

 showing two exserted filaments and paraphyses, '}". Fig. 5: 

 one of exserted filaments; the end marked with x is to be 

 connected to the part with the same mark ; the line .s A- indi- 

 cates the upper limit of the basal portion, ']' J . Fig. 6: 

 pleurilocular sporangia, ~j. Fig. 7 : unilocular sporangium 

 and pleurilocular sporangia, in one and the same frond ; 

 the farmer is fewer in number than the latter, 2 . Fig. 8: 

 pleurilocular sporangia, with an exserted filament which is 

 I'bout 40 !'- thick, -j. Fig. 9-10, unilocular sporangia, one 

 is empty, -j. -Fig. 11: unilocular and pleurilocular 

 sporangia mixed, -?- . Fig. 12: pleurilocular sporangia, 

 partly emptied, : 'J :1 . 



Elachista Duby 1832. 

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