OHAI-. IV. HIBISCUS AFK1CANUS. 141 



The four crossed plants average 13 ''25, and the focr self-fer- 

 tilised 14-43 inches in height; or as 100 to 109. Here we have 

 the nnusual case of self-fertilised plants exceeding the crossed 

 in height ; but only four pairs were measured, and these did not 

 grow well or equally. I did not compare the fertility ef the two 

 Iota, 



