I20 



tures but best results can be had at approximately 70° F. At the 

 right temperature rooting begins after 3 weeks but for practical 

 purposes the cuttings should be left in the medium for three 

 months. One of the greatest problems is to prevent drying since 

 holly transpires water very rapidly. Newly potted plants should 

 be kept in high humidity houses or cases for two or three weeks 

 before being exposed to dry air. 



Plants grown from cuttings taken in December usually make 

 good shoots in April. They often flower during the first season 

 and if properly handled the berries resulting will ripen at Christ- 

 mas time. Since holly is dioecious it is necessary to propagate both 

 types at the same time so that the staminate flowers are ready 

 when the pistillate plants are flowering. Hand pollination is nec- 

 essary if the plants are in a greenhouse. 



Other results shown concerned the effects of extra light on 

 lilac, Taxus, Andromeda, Azalea and Camelia. All of these re- 

 sponded well to extra illumination. Grape cuttings with leaves 

 were compared with cuttings from which all buds had been re- 

 moved. The results were that budless cuttings grew succulent 

 roots of large diameter and without secondary roots, while the 

 leafy cuttings had many fiberous roots. The picture showed a 

 striking difference and it was suggested that possibily some spe- 

 cial substance was made in the leaves which controls the type 



of roots produced. -r^ -t- at t 



^ FoRMAN T. McLean 



Secretary 



Meeting of May 7, 1929 



This meeting was held at the American Museum of Natural 

 History. The meeting/ was called to order by President Denslow 

 at 8:20 P.M. 



The following new members were unanimously elected : 

 Miss Camilla Passow, 782 East 175th Street, Bronx, New York 

 and Mr. W. S. Bourn, Boyce Thompson Institute, Yonkers, New 

 York. 



Mr. Norman Taylor gave a very interesting account of his 

 recent botanical work in Brazil, and illustrated it both by lantern 



