172 



tions of natural vegetation to cultivated plants. If in addition to 

 recording temperature, rainfall, sunshine, and other meteorological 

 elements, we could keep a parallel record of the stages of development 

 of cultivated and uncultivated plants we could use the latter as an 

 index to the effect of the weather during any season and predict from 

 that the behavior of the cultivated plants. 



Teiiiiieriit lives at the respective phanological epochs for plants in European 

 climates (by Gasparin). 



(1) LEAFING. 



* "C. 



Wild honeysuckle (Lonicera perycUmenum) 2.0 



Thorny gooseherry {Ribes uva erispa) 5.0 



Lilac - 5- 



Ordinary currant (Kibes rubra) '- <>• 



Broad-leafed willow (.S'«//./" caprwa) 0.0 



Horse-chestnut {^sculus hippocastannm) 7.") 



Apple tree (Mains eonimunis) ; cherry tree (Cerasus communis) 8.0 



Fig tree (Ficus carica) f^- 



Grapevine shoots '•^- •* 



Mulberry tree covered with leaf-buds : walnut tree 9. 8 



Sprouting of lucerne grass 10.0' 



Alder tree 12. 



Oak; mulberry tree developing leaves 12. 7 



Acacia (Robinia pseudoacucia) 13- ■"> 



(2) FLOWERING. 



Hazelnut tree (Coryliis avellana) ; cypress 3.0 



Furze or gorse (Ulex europoeus) ; box (Buxus seninc'rirens) ; white ]>op- 



lar (Populus alba) 4.0 



Broad-leafed willow; honeysuckle •'i. 



Peach tree 5. 4 



Almond tree; apricot tree 0.0 



Pear tree ''^- ^ 



Elm; apple tree 7.5 



Chei'ry tree; colza 8.0 



Lilac; strawberry plant 9.5 



Broom (Genista scoparia) 10.0 



Beans H- ^ 



Horse-chestnut 12- 



Hawthorn or may (Mespilus oxycantha) 12.5 



Sainfoin or French grass (Hedysarum onobrychis. Leguminosiie) 12.7 



Acacia (Robinia) I-*- 



Eye 14. 2 



Buckthorn (Rhamnus paliurns) 15. 



Oats 10.0 



Wheat; barley 10- 3 



Chestnut tree : 



First flower l 10. 



Full flower 17. 5 



Grapevine : 



Full flower 18. 2 



Flower passed 19. 



Indian corn; hemp; olive tree 19.0 



