226 



from that of zone A. For example, for Acer campestre the constant 

 in zone A for leafing is 0.131, but for zone B it is less than that by 

 0.039, and would therefore be 0.092. 



Tabular siinimari/ of Linssers results. 



Orders, suborders, and species. 



Physiological con- 

 stants for zone A. 



Leaf- Bloom- Ripen- 

 ing, ing. ing. 



Departures of phys- 

 iological constants 

 for zone B from 

 those of zone A. 



Leaf- Bloom- Ripen- 

 ing, ing. ing. 



Sapindaceae (Acerineae): 



Acer campestre 



Acer platanoides 



Acer pseudoplatanus 



Acer tataricum 



Sapindese: 



Aesculus hippocastanum . 



Aesculuslutea 



Aesculus pavia _ 



Cupuliferae (Betuiese): 



Alnus glutinosa 



Amygdaleae: 



Amygdalus communis 



Amygdalus persica 



Aristoloc*hiace£e : 



Aristolochia sipho 



Berberidace«: 



Berberis vulgaris 



Cupuliferae (Betulaceaa): 



Betula alba 



Betula alnus 



Bignoniacese: 



Bignonia catalpa 



Euphorbiacese: 



Buxus sempervirens 



Papilionaceae: 



Caragana arborescens 



Cupuliferae: 



Carpinus betulus 



Leguminosas (Papilionacefe): 



Cercis siliquastrum 



Colutea arborescens 



Tiliaceae: 



Corchorus japonicus 



Comacese: 



Cornusalba.. 



Cornus mascula 



Cornus sanguinea .... 



Cupuliferae: 



Corylus avellana 



Pomaceae: 



Cotoneaster vulgaris 



Rosacea? : 



Crataegus coccinea 



Crataegus oxyacantha 



Leguminosas: 



Cytisus laburnum 



0.131 

 .100 

 .132 

 .132 



.107 

 .114 

 .132 



0.170 

 .105 

 .161 



.875 

 .808 

 .752 



.821 



-0.072 



- .019 



- .067 



