Figure 2 



Distribution of M. americanum, M. calijornicum (central populations), M. 

 californicum pluviale, M. calijornicum lutescens, and M. calif or icum fragile. 



See figure 3 for the distributions of M. californicum californicum, M. californicum 

 ambisimile, and M. californicum recenseo. 



Individual localities for americanum have not been plotted for the eastern 

 states which are solidly checkered, but it should be found throughout all 

 of them. 



Note the collections of M. californicum pluviale in New Hampshire, New 

 York, the Upper Peninsula of Michigan, and northeastern Minnesota, 

 and of M. californicum lutescens in west-central Minnesota. 



20.5 



