430 



BOTAXICAL GAZETTE 



[DECEMBER 



mutability, two, mut. anguslifolia and mut. latifolia, have been 

 carried into an Fi generation from parent plants derived from both 

 sources. A third non-characteristic mutation, mut. gigas, has 

 appeared in Lexington E and also, apparently, in the other strains, 



Fig. 4. — Progeny of Lexington E-5, pan 8 (part of culture 4; see table II); the 

 pan contains 49 plants, which were classilied (most of them at maturity) as follows: 



