TAYLOR: RAUNKIAER'S GROWTH-FORMS 



487 



like a comprehensive view of the flora and vegetation of the island is 

 excellent. 



Within the last few months it has been possible to separate the 

 distribution maps of the species into two groups. The one which 

 interests us just now is the smaller, consisting of the 400 commonest 

 species. These make up the great bulk of the vegetation of the island, 

 the other group of about 719 species being scattered and nothing like 

 so common. 



When these four hundred species are sorted into the different 

 growth-form categories of Raunkiaer and their percentages reckoned, 

 we find them grouped as follows:^ 



Numbers of Percentages of the 



Growth Form Species Commonest Species 



MG 6 1.50 



MS 12 3.00 



MC 34 8.50 



N 17 4-25 



CH 29 7.25 



H 120 30.00 



G 84 21.00 



HH 27 6.75 



T 57 14-25 



Stem succulents 8 2.00 



Parasites 6 1.50 



The amount of deviation from the normal spectrum of Raunkiaer 

 or from the growth-form percentages of the total flora of Long Island, 

 or from the percentages of the local flora area^ should show an inter- 

 esting relation. The figures are as follows: 



It will be seen from this table that the percentage of large and 

 medium-sized trees, the herbs that root near the surface, and the 

 annuals are somewhere near what the normal spectrum would lead 

 one to expect. In fact the growth-form percentages of these 400 

 commonest Long Island species are in remarkable agreement with the 

 percentages of the total Long Island flora and of that whole region 



' Abbreviations for the difl^erent growth-forms are the same as those in general 

 use'. See Journ. Ecol. i: 16-26. 1913 and Am. Journ. Bot. 2: 23-31. 1915. 



-See Mem. N. Y. Bot. Card. 5: 1-683. 1915 and Am. Journ. Bot. 2: 23-31. 

 1915. Stem succulents and parasites are omitted from now on as being too small 

 to signify. 



