2-21 



between Q. IVicllos and Q. rubra) from Staten Island. The 

 specimens exhibited showed an interesting range of variation, 

 and acorns of both h)'brids have been planted, so that they can 

 be stLulicd hereafter in the light of recent theories of evolution. 



Roland M. Haki'ek, 



Secretary pro tcm. 



NovEMiJKK 14, 1905 



This meeting was called to order by President Rusby in the 

 American Museum of Natural History. Twenty persons were 

 in attendance. 



Dr. C. Stuart Gager was elected recording secretary to suc- 

 ceed Mr. Edward W. Berry, resigned. 



The Rev. John Charles Roper, D.D., 3 Chelsea Square, New 

 York City, was elected to membership. 



The scientific program consisted of a paper by Dr. D. T. 

 MacDougal on " Bud-Sports ; Occurrence and Hereditary 

 Qualities." 



The speaker gave an outline of the subject of bud-sports and 

 described some illustrative cases. Three striking examples from 

 the cultures of the evening primroses in the New York Botanical 

 Garden in 1905 were discussed. In one, a hybrid gave a flower- 

 ing branch which sported into the characters of a sister hybrid ; 

 in the second, a fixed hybrid produced a branch constituting a 

 reversion to one of the parents ; a third, a mutant of the common 

 evening primrose, produced a branch which resembled the par- 

 ental form. Attention was called to the fact that all mutations 

 are essentially vegetative and therefore a greater terminology 

 would necessitate the use of the terms "bud-sport" or "bud- 

 mutant," and "seed-sport" or "seed-mutant." While seed- 

 mutants may theoretically be traced to one cell, it seems diffi- 

 cult to do this in the case of bud-sports. The action of the 

 growing point in the protection of buds was illustrated with dia- 

 grams, and an enlarged [photograph of one of the bud-sports was 

 exhibited. 



The paper was discussed by President Rush}' and Professor 

 Lloyd. 



