39 



been re-written, in order to embrace the numerous American species, 

 which nearly equal the whole number previously known. 



The measurements are given in micro-millimeters (without any 

 sign). American species are printed in fullface; the South Ameri- 

 can species are designated by the letter "S" in parenthesis. 



The following species have been added to the Braun-Nordstedt 

 Fragmenta : 



Nitella Morongii, Allen. 

 Macounii, Allen. 

 " muthnatce, Allen. 

 " minuta, Allen. 

 " dualis, Ndst, mss. 



bonaerensis, Spegaz. 

 " Archavaletae, Spegaz. 

 Tolypella hispanica, Ndst. 

 comosa, Allen, 

 finbriata, Allen. 

 " stipitata, Allen. 



intertexta, Allen. 

 Chara socotrensis, Ndst. 

 " sub-mollusca, Ndst. 

 " inconnexa, Allen. 

 " evoiuta, Allen. 

 " excelsa, Allen. 

 " sub-segregata, Ndst. 

 " gymnopus-guatemalensis, Ndst 



