[HARRISON A BARLOAv] NODULE ORGANISM OF THE LEGUMINOSAE 213 



Ps. radicicola from Lathyrus sativus. Culture on R81. Age 17 days at 

 25°C. Stained with saturated alcoholic gentian violet. The mucilage 



of the culture takes the stain, the cells and their flagella do not. 



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128. Ps. rauicirold, from Phaseolus vulgaris. Grown on ash-maltose-agar for 60 

 days at room temperature. Stained with Kiitscher's gentian violet. 



