1911.] 



Herbage Studies. 



477 



such as to favour continued growth rather than ripening. From this point 

 of view, it may be questioned whether the specially brilliant colour of 

 Norwegian flowers — if it be a fact — may not be less a consequence of any 

 direct action of light and more an outcome of the greater supply of the 

 colouring agent conditioned by the longer continuation of growth under 

 northern conditions, the supply not being cut down by the setting in of 

 the ripening process at an early stage. Even in our own climate, flowers 

 are apt to be very brilliant in colour in spring and early summer. 



Fortunately we have been able to extend our observations this year 

 practically over the whole of Europe. Dr. J. Vargas Eyre, who has been 

 studying the growth of flax on behalf of the Development Commission, has 

 been able to collect and test Lotus for us at a large number of localities. 

 We are greatly indebted to him for the following summary of his < 

 tions : — 



Character of plant. 



28 Hoorn 



30 ' Enkhuisen . 



August 5 . . . Bolsward 



GrEBMANY. 



Potsdam 



Hot sand 



Amongst grass 

 sheltered bank 



Moderately moist 



Warm, damp (? L. 



mnjor) 

 Sun scorched railway 



Moderately moist 



(1) Lawn 



(2) alaCe - 



Moist 



(1) River bank, 

 1 moderately damp 



(2) „ „ 



Low growing 



„ spreading habit 



Moderately luxuriant 



Very tall (over 2 feet), hollow stem, 



large leaves 

 Very stunted 



Common type, moderately luxuriant 



„ large broad leaves 



Very dwarf type, no sign of flowering... 



Slender, branched, narrow leaves (? var. 



Moderately luxuriant, found with (2) ... 

 Apparently same as (2) 



Dwarf habit, large flowers, very small 

 leaves 



Common type 



Common form, luxuriant 



Dwarf habit, small narrow leaves, few 



in number, hollow stem 

 Similar to (1) but large amount of 



foliage 



Similar to (1), except leaves were 

 shorter 



