104 



COMPETITION AND CONSTANCY. 

 Table 71. — Rosa, Chamaenerium, Aquilegia, etc. 



greatly exceeded it in attractive power, in the ratio of 120:23, though this 

 was due chiefly to the habitual preference of the honey-bee. When 

 Rosa was the standard and Rubus the bouquet, the difference was slight, 

 owing to the fact that Apis then visited the first alone. In competition 

 with Opulaster, the rose received no visitors, a consequence explained by the 

 fact that practically all the visitors present were flies and species of Andrena. 

 The rose was most effective in competition with flowers of similar color 

 but smaller size, the ratio being 65 : 44 for Geranium, 26 : 20 for Cleome. and 



