71 



Airy, Philadelphia, Pa. ; Lycurgus R. Moyer, Montevideo, Minn. ; 

 O. M. Olesoii, Fort Dodge, Iowa ; S. B. Parish, San Bernardino, 

 Cal. ; Chas. C. Van Loan, 407 West 47th St., N. Y. City ; 

 David R. Sumstine, 508 Elliott St., Wilkinsburg, Pa. ; Charles 

 Fay Wheeler, Prince George Co., Lanham. Md. 



On a vote of the Club, the secretary cast the ballot of the club 

 for the persons above proposed for membership. 



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

 Murrill, on " Remarks on a Destructive Disease of the Chestnut 

 Trees." 



The disease in question was discovered last summer, by Mr. 

 H. W. Merckel in the New York Zoological Park, where most 

 of the chestnut trees were found to be affected and many of them 

 injured beyond hope of recovery. Besides being abundant about 

 New York City, it is known to occur also in New Jersey, Mary- 

 land and Virginia and its presence is suspected in Georgia and 

 Alabama. 



The disease is apparentl}^ unknown to all our mycologists and 

 the fungus appears to be undescribed. By cultures, inoculations 

 and field studies, its morphology and life history have already 

 been quite well determined ; but no treatment beyond clean cul- 

 ture can as yet be suggested. 



The paper was illustrated by specimens, photographs, drawings 

 and cultures. 



The second paper was entitled "Crataegus in Dutchess County, 

 N. Y.," and was by W. W. P^ggleston. 



Many herbarium sheets were shown. The paper is published 

 in the present issue of Torreya. It was briefly discussed by 

 Professor Underwood. 



The last paper by Miss Alice A. Knox was entitled, "A Cu- 

 curbitaceous Stem of the Desert." 



Ibcrvillca Sonorae, an American desert species of the Cucur- 

 bitaceae is noteworthy for its enormously thickened perennial 

 stem, which frequently reaches a diameter of 40 cm. This stem 

 can exist an indefinite time without water, sending up yearly long 

 flexible shoots. Its anatomy shows in general the ordinary stem 

 structure of Cucurbitaceous plants. There is a double ring of 



