46 



peculiar heads. Two forms of abnormality were 

 present. 



1st. The flowering glume was greatly enlarged 

 and resembled a diminutive leaf, having blade, sheath 

 and ligule. Within the flowering glume were palet, 

 stamens and pistil, but there was evidence that furthei" 

 development of the reproductive organs need not be 

 expected. 



2nd. The flowering glume and the palet were 

 apparently normal but had been borne out from the 

 outer empty glumes by a predicel about Vs of an inch 

 long. This was not as common as the first mentioned 

 and more conspicuous form. 



The timothy was a second growth, having been 

 mowed during the summer. 



An abnormal specimen of Onoclea sensihilis L. 

 collected by Professor Kellerman, showed gradations 

 in leaf form between the normal sterile and fertile 

 leaves. The spores found upon these intermediate 

 leaves were apparently as perfect as those found in 

 the fertile leaves. 



Specimens of Osmunda cinnamomea L. bearing 

 the fertile leaflets similarly to the closely related C. 

 claytoniana L. were found in the State Herbarium. 

 Other specimens had sori scattered over the backs of 

 leaves which resembled the normal sterile leaf. 



One specimen of Botrychium virginianum { L ) Sw. 

 shows division in the stalk of the fertile portion of 

 the frond instead of the usual single stalk. 



