49^ The Ohio Naturalist. [Vol. VI, No. 5, 



KEY TO OHIO CATALPAS IN WINTER CONDITION. 



Allen IMcOwex. 



Catalpa Scop. Trees with gray or brownish gray robust 

 twigs; axillary buds small and flat, single, opposite or in threes; 

 terminal bud self-pruned; lenticels large, scattered; pith large, 

 solid, cylindrical, white; leaf scars large, oval or circular, con- 

 cave, distinct, not united by a connecting line; stipular scars 

 none; bundle scars numerous, in an ellipse or a ring; fruit a long 

 bean-like capsule, persistent; seeds flat, wdnged, the ^ wings 

 ending in white thread-like hairs. 



1. Twigs of the season coarse pubescent, bark of twigs not strong 

 scented nor bitter; bark of trunk rough; capsule very slender, 

 3 lines in diameter, 6-10 inches long; seeds 6 lines long. 



Catalpa ovata Don. Japan Catalpa. 



1. Twigs of the season glabrous; capsule large, 12-20 inches long; 5-10 



lines thick; seeds 15-20 lines long, 3-4 lines wide. 2, 



2. Wings of seed usually narrowed at the ends; bark of trunk thin and 



flaky; an irregular tree with spreading branches; bud scales rather 



open and spreading. Catalpa catalpa (L.) Karst. Common Catalpa. 



2. Wings of seed usually broad, the threads running parallel; bark of 



trunk thick and rough; a large erect tree; bvid scales rather close. 



Catalpa spcciosa Ward. Hardy Catalpa. 



MEETING OF THE BIOLOGICAL CLUB. 



Orton Hall, Jan. 15, 1906. 



The Club was called to order by the President, Mr. Griggs. 

 The minutes of the last meeting were read and approved. 



Mr. Herms presented the paper of the evening. He gave the 

 results of his work carried on at Cedar Point. 



Prof. Osborn reported the meeting of the A. A. A. S. which 

 was held at New Orleans. He reported especially the papers 

 that were presented on Yellow Fever and the Boll Weevil. 



Mr. Cotton talked very interestingly of the papers read 

 before the section of Economic Entomologists. 



Mr. Griggs reported his work on Ascaris. It has been held 

 that there was a double longitudinal splitting of the chromo- 

 somes, but Mr. Griggs has shown that it is a single longitudinal 

 split, a folding and a transverse split which gives the appearance 

 of a double longitudinal split. 



The Club then adjourned until February. hH 



Z. P. Metcalf, Secretary. 



Date of Publication of March Number, March 14, 1906. 



