98 



superiie nonnunquam subsecunda. Organa sexualia desuni. Pili hyalini crebri, in 

 ramulis sporangiferis terminales. 



This species which has been found only in two localities in the Baltic is cer- 

 tainly nearly related to Ch. hallandica, bul however so different from it, that I do 

 not hesitate to set it up as a distinct species. It dilfers by the primary filaments 



being more numerous, less bran- 

 ched, somewhat thicker and con- 

 sisting of somewhat longer cells, 

 by the sporangia being larger, by 

 the sporangial stalks bearing only 

 one sporangium, and by the want 

 of sexual organs. In some of the 

 characters mentioned, the more 

 numerous and thicker filaments, 

 and the sporangia often opposite, 

 it resembles Ch. hallandica f.par- 

 uiila, but it is very different from 

 this by the long cells and the 

 sporangia being often stalked. 



To complete the description 

 given above, the following re- 

 marks may be added. The basal 

 cell is nearly globular, its plane 

 of attachment being often smaller 

 than its transverse section; it is 

 rather thick-walled. The primary 

 filaments bear usually no long 

 branches but only sporangia- 

 bearing branchlets. The most de- 

 veloped ju'imary filaments recall 

 somewhat those of Ch. virgatula, 

 but they are thinner and the 

 branchlets bear only one spor- 

 angium. The shorter filaments 

 consist of shorter cells, 2 3 times 

 as long as broad and often some- 

 what enlarged above. In some 

 specimens from SQ the longer 

 filaments were up to 9// thick below, upward thinner, ca. 5 /y. in diameter, the cells 

 being up to 7 times as long as broad. The chromatophore reaches in the longer 

 cells often only to the middle of the cell, the pyrenoid lies near the upper end of 

 the cell. The spores contain a veiy distinct stellate chromatophore. I have never 



: Fig- 2 



Chantransia ballicu. (From Ql!). ,1, 7J :ind I'lilly devolui)c<l plimls 

 Willi spnransia, C young jihint. seen from the side. 



