CHAP. III. 



LINUM PERENNE. 



9T 



expanded than that of L. grandiflorum, and the stigmas 

 of the long-styled form do not diverge greatly from 

 one another; nor do the stamens of either form. 

 Hence insects, especially rather small ones, will not 

 insert their proboscides between the stigmas of the 

 long-styled form, nor between the anthers of either 

 form (Fig. 5), but will strike against them, at nearly 



Fig. 5. 



Long-styled form of L. PEEEXXE, var. Austriacum, in its early condi- 

 tion before the stigmas have rotated. The petals and calyx have 

 been removed on the near side.* 



right angles, with the backs of their head or thorax. 

 Now, in the long-styled flowers, if each stigma did 

 not rotate on its axis, insects in visiting them would 

 strike their heads against the backs of the stigmas; as 

 it is, they strike against that surface which is covered 

 with papillas, with their heads already charged with 



* I neglected to get drawings from published engravings. His 



made from fresh flowers of the two well-known skill ensures accuracy 



forms. But Mr. Fitch has made in the proportional size of the 



the above sketch of a long-styled parts, 

 flower from dried specimens and 



