95 



The Treasurer's report for the year ending January 14, 1903, 

 was read. It showed receipts amounting to $2,891.74 (not in- 

 cluding $67.60 from the former treasurer) and a balance on 

 hand of $327.33. The report was adopted. 



The first paper on the scientific programme was by Miss E. M. 

 Kupfer, entitled " Remarks on regeneration in the cuttings of 

 plants." The results of Miss Kupfer's experiments, which were 

 carried on at the New York Botanical Garden, may be outlined 

 as follows : 



Baccharis genistelloides, a South American xerophyte devoid of 

 leaves, produced both from lateral buds and at the tip of the 

 main shoot, stems almost without wings and with several well- 

 marked reversion leaves. 



In cuttings of Maeldenbeckia platy dados, in addition to fiat sep- 

 tate branches identical with normal ones except in the production 

 of large hastate leaves, there were developed also one or more 

 perfectly cylindrical leaf-bearing shoots. As the cylindrical 

 branches flattened, the leaves decreased in size. Removing leaves 

 or growing points on these cuttings, induced the appearance of 

 leaves at nodes from which they had previously been absent. 



Russelia jimcea and Cytisus purgans, both normally leafless, 

 produced conspicuous leaves before taking root. 



A blade proportionally three times as large as usual was in- 

 duced on the thorny petioles of two cuttings of Rubus australis 

 which took several months longer than the others to start growth. 



Sambucus Canadensis produced on cuttings of the first year 

 only entire, bifoliate or trifoliate leaves. In the second season, 

 some leaves had four or five leaflets and none more than five. 



Colletia cruciata showed remarkable regressive series from 

 leafless thorns to finely pointed normally leafy branches. On 

 some cuttings a double series, first regressive and then again 

 progressive, appeared. One plant which did not start growth 

 until fully seven months after the others produced a branch totally 

 without thorns, but with unusually conspicuous leaves. 



The various theories of regeneration were discussed, and it was 

 pointed out that none so far advanced saemed to cover all of the 

 facts presented. It was suggested that there might be some 



