290 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



[Vol. 6 



SERIES D 



INOCULATED MAY 10, 1916. SAMPLE FROM MISSOURI BOTANICAL GARDEN, CUT 

 IN NEW EMBANKMENT ALONG ROADSIDE EAST OF NEW PROPAGATING 

 HOUSES. NATURAL FORMATION; BLACK HUMUS TO 20 CM.; CLAY TO VERY 

 FINE CLAY THE REMAINING DEPTH; D :PTH LIMIT 120 CM. 



Ser. 

 D 



D 



D 



1 



1' 



2 



2' 



3 



3' 



4 



4' 



Depth 



June 10, 

 1916 



June 17, 

 191(5 



Aug. 24, 

 1916 





Mar. 8, 

 1917 



Surface 



Protoderma 

 viride 



Surface 



10 cm. 



10 cm. 





20 cm. 



30 cm. 



30 cm. 



40 cm. 





20 cm. 



P. viride 



P. viride 



40 cm. 



P. viride 



Nov. 22, 

 1918 



P. viride 

 Cladophora 



sp. 

 Ulothrix 



variabilis 



P. viride 

 Cla iophora 

 sp. 



U. variabilis 

 E>iatoms 





P. viride 

 U. variabilis 



Stichococcus 

 bacillaris 

 Diatoms 



P. viride 

 Cladophora 

 sp. 



P. viride 

 Cladophora 

 sp. 



P. liride 



P. viride 



P. tiride 





P. viride 

 Cladophora 

 sp. 



P. viride 

 Cladophora 

 sp. 



P. viride 

 U. variabilis 



P. viride 

 Cladophora 



sp. 

 U. variabilis 



S. bacillaris 

 Diatoms 



P. viride 



P. viride 



P. viride 



P. viride 

 U. lariabilis 



P. viride 

 Cladophora 

 sp. 





P. viride 



P. viride 



P. viride 



(plasmo- 



lyzed) 



P. viride 

 U. variabilis 



Cladophora Cladophora 



P. viride 



sp. 



P. viride 



P. viride 



P. viride 



P. viride 



sp. 



P. viride 

 Cladophora 

 sp. 



P. viride 



P. viride 



P. vride 

 Claaophcra 

 sp. 



P. viride 

 U. viriabilis 



P. viride 



P, viride 



P. viride 



P. viride 

 U, variabilis 





P. viride 

 Diatoms 



