Botany and —— 283 
rollas to serve as guides, and age gery as far as I have seen, visited by 
ins peers. When insects is is incomparably 
re frequent case, both with plants having separated sexes and wi 
hermaphrodies), the wind plays no part, but we see an endless number ‘of 
adaptations to ensure the safe transport of the pollen by the living workers. 
e can recognize these sdapaiionn most easily in irregular flowers; but they 
ich those of 
ow, 
“T have already alluded wi the rotation of each separate stigma in the 
long-styled form alone of Linum perenne. 8 the other species e. xamined by 
me, and in both forms when et cies are dimorphic, the stigmmalie surfaces 
ace the centre of the flower, and ho furrowed backs of the stigmas, to which 
the styles are attached, face the circumference. This is the case, in the bud, 
with the stigmas of the fone aiiel flowers of L. perenne. But, by the time 
in 
earlier in the ome the torsion mae ave “ee more Paes for after two 
days the movement was very incomplete. The 
ange Me examined honky after pele Siiension. for their duration is brief, 
n to wither, the Balad become spirally twisted to- 
gether, and ths, original aula d of the parts 
“He who will com npare the structure of the a flower in both forms of 
have t 
have been fertilized. fen it is, the styles diverge greatly and pass out between 
the filaments. The stigmas, being short, lie bAgcon the tube of the corolla; 
and their papillous faces, after the divergence of the styles, being turned up- 
wards, —— necessarily brushed by every entering insect, thus receive the 
fequi pollen, 
“In the long-styled form L. grandiflorum, the parallel anthers and s 
mas, slightly ip bss font =. axis of the flower, project only a little cud 
the tube of the somewhat concave corolla; and they stand directly over the 
open space ieaking oe to the drops of nectar. Consequently, when i visit 
the flowers of either form (for the stamens in this species occupy the same 
position in both forms), they will get their proboscides well dusted with the the 
