1919] 



MOORE AND KARRER — A SUBTERRANEAN ALGAL FLORA 



287 



SERIES B— Continued 



Ser. 

 B 



Depth 



Feb. 24, 

 1916 



Mar. 29, 

 1916 



Apr. 11, 

 1916 



June 7, 

 1916 



Aug. 25, 

 1916 



Nov. 14, 

 1916 



3 



30 cm. 







P. viride 



P. tnri(ie 

 (motile) 



1 



P. viride 



P. viride 

 S. bacil- 



laris 



3' 



30 cm. 













P. viride 



aS. bacil- 



laris 



4 



40 cm. 



P. viride 



P. viride 



P. viride 

 (motile) 



P. tn'rufe 



P. viride 



P. viride 



(motile) 



Diatoms 



4' 



40 cm. 















5 



50 cm. 



» 



P. viride 

 Cladopho- 

 ra sp. 



P. viride 

 Cladopho- 



ra sp. 



P. viride 

 Cladopho- 

 ra sp. 



P. viride 

 Cladopho- 



ra sp. 



P. viride 



5' 



50 cm. 





P. viride 



P. viride 



P. viride 



P. viride 

 Diatoms 



P. viride 

 Diatoms 



6 



60 cm. 







1 



■ 





Diatoms 



6' 60 cm. 













Diatoms 



7 



70 cm. 



X 













7' . 



70 cm. 











P. virufe 

 Diatoms 



P. viride 

 Diatoms 



7" 



70 cm. 













S. bacil- 



laris 

 Diatoms 



8 (80 cm.), 9 (90 cm.), and 10 (100 cm.), no growth. 



