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Two Pine Gametophytes in One Ovule. 



By M. S. Markle. 



lu sectioning some pine material of unlcnown origin, I recently found 

 one ovule that had in it two well-developed gametophytes, each of which 

 had developed arohegonia. This probably means that two megaspores func- 

 tioned instead of the usual one. I understand that the abnormality has 

 also been noticed by Miss Sargent. The two gametophytes occupied the 

 positions shown by the accompanying sketch. 



[21— 2G988J 



