(48) 



section and brings out clearly the anatomical basis of the 

 annual growth rings. And yet another shows a cross 

 section of the submerged stem of an aquatic plant with 

 its large air spaces and poorly developed strengthening 

 tissues. 



(c) Local Flora. In this collection it is designed to 

 illustrate every plant-species growing naturally or without 

 cultivation within one hundred miles of New York City. 

 For the most part specimens of the plants themselves are 

 used, but in cases where the structure of the plants renders 

 this method undesirable, or impossible, a photograph or 

 a drawing is substituted for the plant-specimen. This 

 collection is displayed in swinging frames which are placed 

 so as to correspond in a general way to the sequence of the 

 cases of the synoptic collection already described; thus, 

 the first stand is near the first museum case as one enters 

 the west hall from the top of the staircase. All of the 

 plant groups are here represented by those members that 

 occur locally, and the characteristics of the several groups 

 as mentioned under the Synoptic Collection also apply 

 here. 



(d) The Plant Photograph Exhibit. A series of over 200 

 enlarged photographs, illustrating plant societies, habit- 

 characters, flower-characters, and fruit-characters of the 

 higher plants, as well as habit and structural characters of 

 some of the larger algae and fungi, are displayed in frames 

 fastened to the walls of the systematic museum. As far 

 as practicable, they have been placed near the cases con- 

 taining representatives of the species illustrated. The 

 photographs are 11 x 14 inches in size and are mounted in 

 glazed frames, some frames containing 4 and others 6 

 photographs. 



3. THE MUSEUM OF FOSSIL BOTANY 



This collection, installed in the basement, is designed to 

 show the successive stages of evolution through which the 

 ancestors of our living flora have passed since the time of 



