127 



Rock Rd., Saiigatuck, Conn. As associate member : Mrs. Leon A. 

 Hausman, 259 Harrison Ave., New Brunswick, N. J. 



The transfer of Miss Alexandria Kalmykov from associate to 

 annual membership was approved. 



The resignations of Mr. Harry Sverdlick, 144—32 Liberty Ave., 

 Jamaica, N. Y. ; Miss Ruth V. Schmidt, 2929 N. Prospect Ave., 

 Milwaukee, Wis. ; Mr. Walter Jones, Plant Pathology Laboratory, 

 Saanichton, B. C, Canada; Dr. Forman T. McLean, Oneco, Fla. ; 

 Miss Natalie Hettger, 214 Division Ave., Hasbrouck Heights, 

 N. J. ; and Dr. Clifford Leonard, Burlington, Vt., from annual 

 membership were accepted with regret. 



The report of Dr. Graves, chairman of the auditing committee, 

 stating that the books of the Treasurer had been examined and 

 found in order by the committee, was read by the President. Dr. 

 Dodge moved the report be accepted and that a very brief state- 

 ment of the financial standing of the Club be submitted by the 

 Treasurer for publication in Torreya. Dr. Camp seconded the 

 motion and the Club so voted. 



The scientific part of the program consisted of two lectures 

 on the results of research. The first by Mr. Thomas Laskaris of 

 the New York Botanical Garden was on the "Delphinium Crown 

 Rot Complex." The speaker's abstract follows : 



The most destructive disease of perennial delphiniums is crown rot or 

 "black rot." The term crown rot as used here refers to a symptom complex 

 of which the death and decay of the crown and roots, and the wilting, yellow- 

 ing or general blight of the aerial parts of the plants are conspicuous features. 



Crown rot may result from one of several causes which may be grouped 

 into: (1) cultural defects and (2) parasitic fungi and bacteria. The relation 

 of cultural defects such as faulty drainage, soil deficiencies, over-feeding, too 

 warm an exposure, etc., to the incidence of delphinium crown rot is well 

 known. Familiar also, as parasitic causes of delphinium crown rot, are the 

 widely parasitic fungi, Sclerotium delphinii, and its related form 5". rolfsii, 

 the fungus Rhisoctonia solani and a bacterium of the common soft-rot group. 



A recent study made by the speaker under the sponsorship of the Ameri- 

 can Delphinium Society and carried on at the New York Botanical Garden, 

 has shown that several other fungi are important causes of delphinium crown 

 rot. Most prevalent of these is a species of Diplodina, a pycnidial fungus 

 previously unrecorded on delphinium. This fungus, in addition to crown rot 

 has been found capable of producing a stem canker, local necrosis and leaf 

 spot. Important also are two little-known delphinium diseases, Fusarium 

 stem canker and Fusarium wilt. The present study is the first to definitely 

 establish the causal relationship of Fusarium to these diseases. It is indicated 



