The Development and Structure of the Root-nodules of Myrica gale L. with Special Reference to the Nature of the Endophyte

The development and structure of the root nodules of Myricagale are described, and evidence advanced showing that theyrepresent modified lateral roots. Attempts at the isolationof the endophyte were unsuccessful, but on the basis of a cytologicalstudy of the nodules the author adheres to the view of someprevious investigators that the endophyte is actinomycetal.