63 



very rich and included a large number of species, but none that 

 was particularly noteworthy. 



The prevailing trees of the forest areas are red maple and the 

 black oak, Qncrcns velutina. Q. alba, Q. Marylandica, beech, sour 

 gum {Nyssd), sassafras and holly {Ilex opacd) also occur. The 

 more abundant shrubs are pepper bush, button bush, Amelanchier, 

 Kalmia angustifolia , Vaccinium corymboswn, sweet gale, choke 

 cherry, etc. Smilax rotiindifolia is very abundant. Orchids 

 were abundant, as many as ten species being found. On the 

 drier hills, Gaylussacia resinosa was abundant, but it produces 

 little fruit owing to the attack of a fungus, Exobasidium. In the 

 swamps, Osmunda cinnamomea, Woodwardia arcolata and W. 

 Virginica were very abundant and luxuriant. 



In all, 335 species of flowering plants were collected on the 

 island, without including all of the grasses and sedges. 



After an interesting discussion the Club adjourned. 



F. S. Earle, 

 Recording Secretary. 



Wednesday, March 10, 1903 



The Club met at the College of Pharmacy at 8 p. m.; Pro- 

 fessor Lloyd in the chair ; 22 persons present. 



The first paper on the scientific program was by Miss Rosina 

 J. Rennert, under the title of " Notes on the Anatomy and Phys- 

 iology of Oxy polls filiformis." 



This investigation was carried on under the direction of Dr. 

 MacDougal, of the New York Botanical Garden. Oxypolis fili- 

 formis is an umbellifer growing on the margins of ponds and 

 swamps in southern United States and in Europe. Its leaves 

 are reduced to awl-shaped septate phyllodes, giving the plant a 

 rush-like appearance. In a paper on septate leaves in dicoty- 

 ledons, Briquet describes the anatomy of the phyllode minutely. 

 He found six tissues in the leaf, epidermis, hypoderm, chloren- 

 chyma, fibro-vascular bundles, endoderm, and a loose stellate- 

 celled tissue occupying the central core. He regards some of 

 these characters as strongly hydrophytic and others as xero- 

 phytic and explains the possession of characters suited to such 



