INDEX 



207 



Test Cases (cont.) 



XXVI. Age and Area, 146 



XXVII. Contour Maps, 149 



XXVIII. Taxonomic Resem- 

 blances of (Geographically) 

 widely Separated Plants, 154 



XXIX. Variety of Character with 

 Uniform Conditions, 156 



XXX. A common Type of Distri- 

 bution in India and Elsewhere, 

 158 



XXXI. Large (ienera the Most 

 "Successful", 161 



XXXII. Characters the More 

 Constant the More Useful, 161 



XXXIII. Relation of Monoco- 

 tyledons to Dicotyledons, 162 



XXXIV. Overlap of Largest Ge- 

 nera in a Family, 163 



Tetracera, 45 

 Thalictrum, 104 

 Transitions, 12, 16, 44, 



143 

 Trimen, H., 18, 24 

 Tristichaceae, 21 



Tropical Forest, 22 

 TurrUl, W. B., 63 



Umbelliferae, 154 

 Unsuccessful genera, 128 



Variation, differentiating, 11, 14; 

 inherited, 11; in sudden steps, 

 10; irreversible, 11, 14; of 

 character with uniform condi- 

 tions, T.C. XXIX, 156 



Vaud, names in, 35, 40 (fig. 6), 148, 

 149 



Vries, H. de, 14, 170 



Wallace, A. R., 3 

 Weather effects, 55 

 Went, F. A. F. C, 104 

 Willisia, 19 

 Woolf, L. S., 6, 144 



74, 125, Xerophytes, 52 



Yule, G. Udny, 50, 90, 93, 100, 155, 

 173 



CAMBRIDGE: PRINTED BY W. LEWIS, M.A., AT THE UNIVERSITY PRESS 



