274 



KARL B. KRISTOFFEBSON 



üf llie petals in this /•^-generation evidently must show a distinct 

 skewness. It is my intention, however, to treat this ease later. 



CORRELATIONS IN THE FLOWER. 



The dominance of the small-flowering forms of V. aruensis (lines 

 2 and 4) with regard to the petals and the labellum may be due to 

 one or to several inhibiting factors. The variation in F^ i»lso argues 

 in favour of this presumption as most of the individuals have the 



TABLE 12. The correlation between the upper petals and the 



spur-petal. 



r = + 0,« 



