[HARRISON & BARLOW] NODULE ORGANISM OF THE LEGUMINOSAE 217 





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30. Ps. radicicola, from Vicia villosa. Isolated from a nodule July 6, 1904, by 

 plating in medium R3-1. Que colony transferred to medium R44 on July 

 11, 1!:)04, and from this culture it was plated in medium R81, March 8, 

 I'JOG, that is, after a laisse of 597 days at room temperature. Stained 

 preparation was made from one of the colonies which developed after 

 nine days growth. Kiitscher's gentian violet stain for the slime threads. 





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30.* Ps. radicicola from Vicia villosa. From another part of the same prepara- 

 tion as 30. 



