52 



HETEROSTYLED DIMORPHIC PLANTS. CHAP. I 



lication of liis paper H. Miiller has made much fuller 

 experiments, and I give his results in the following 

 table, drawn up in accordance with my usual plan : 



TABLE 13. 

 Hottonia paJustris (from H. Mi'dler). 



The most remarkable point in this table is the 

 small average number of seeds from the short-styled 

 flowers when illegitimately fertilised, and the unusually 

 large average number of seeds yielded by the illegiti- 

 mately fertilised long-styled flowers, relatively in both 

 cases to the product of the legitimately fertilised 

 flowers.* The two legitimate unions compared with 



* II. Muller says ('Die Be- 

 fruchtung/ &c., p. 352 1 that the 

 long-styled flowers, when illegiti- 

 mately fertilised, yield as many 

 seeds as when legitimately fer- 

 tilised ; but by adding up the 

 number of seeils from all the cap- 

 sules produced by the two methods 

 of fertilisation, as given by him. 



I arrive at the results si town in 

 Ta!)le 13. The average number 

 in the long-styled capsules, when 

 legitimately fertilised, is 91 - 4, 

 and when illegitimately fertilised, 

 77 5 ; or as 1 00 to 85. H. Mitl ler 

 agrees with me that this is the 

 proper manner of viewing the 

 case. 



