38 



Meeting of January 31, 1923. 



The meeting of the above date was held in the Morphological 

 Laboratory of The New York Botanical Garden. 



The amendments to the Constitution and By-Laws proposed 

 by Dr. Britton at the last meeting and recorded in the minutes 

 of that meeting were adopted. It was voted that the duty of 

 the Bibliographer should be the preparation of the copy for 

 the Index to Recent Literature, published by the Club. Miss 

 Hester M. Rusk was elected Bibliographer. 



Two new members were elected, Miss Ruth A. Connolly, 

 New York City, and Donald Culross Peattie, Plant Introduction 

 Gardens, Miami, Florida. 



It was voted that the restrictions as to the number of pages 

 to be printed in the Bulletin and Torreya for 1923 should remain 

 the same as for the past year. 



The first paper on the scientific program was by Dr. A. H. 

 Graves on "The Melanconium Disease of Butternut." 



This disease is one of the chief troubles of the butternut 

 (Juglans cinerea L.). The Japanese walnut (/. Sieboldiana 

 Maxim.) is also particularly susceptible. Inoculation experi- 

 ments, carried on for more than four years, have demonstrated 

 conclusively that the fungus is a weak parasite. Entering usually 

 through small twigs, the mycelium grows slowly down through 

 the wood — faster if the tree is already weakened — to the main 

 branch and finally to the trunk. Ordinarily the progress of 

 the disease is so slow that the leaves fall off one by one, not 

 producing any striking wilting or blighting effects. In the 

 final stages, the affected trees have a marked stag-headed aspect. 

 Diseased branches should be pruned off promptly some distance 

 below the apparent afTection and the wounds tarred over or 

 painted. After the fungus has penetrated the trunk there is 

 no efficacious remedy. 



The second paper was by Mr. Kenneth R. Boynton, his 

 subject being "Some Succulent Groundsels." 



Since the i6th century, the group of Senecios or groundsels 

 known as Kleinias have been cultivated in the larger collections 

 of succulents. They were introduced from South Africa, where 

 they are found most abundantly in the "Karroo" vegetation, 

 made up of plants of a xerophytic character, inhabiting a region 

 of infrequent rains and drying winds. Two main types are 



