[HARRISON A barlow] NODULE ORGANISM OF THE LEGUMINOSAE 187 



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1. Ps. radicicold, from a nodule of Ti-ifoliiim repens (Dutch clover), showing 

 cuneate and clavate forms. 



2. Ps. radicicola, from a nodule of MpHIoHis alba. 

 Sec. IV., 1906. 14 



