» 1887. | BOTANICAL GAZETTE. 247 
the insect, instead of the retinaculum breaking and leaving 
the pollinium behind. Mansel Weale found pollinia of 
AXysmalobium lingueforme Harv., attached to the long hairs 
of the sternum and coxe of a Pallasoma, but they gain this 
position accidentally, the flower being adapted to fasten pol- 
linia to some part of the insect’s head.” 
Insects with short hairs sometimes suck without drawing 
out the pollinia, which shows the importance of those with 
tes, Odynerus, Cerceris (2), Bembex, Myzine. Coleoplera: 
Trichius. Lepidoptera: Thecla, Chr ph s, Scepsis. 
condition shown in fig. 6, one with its base emitting tubes, 
and the corpusculum and other pollinium outside. | While 
the stalk seems to be very useful in effecting pollination, 
it seems to act injuriously in every case in which a corpus- 
2“ Observations ies of Asclepiadeve are fertiliz 7 
Jour. Linn, See. xii a mode in which certain species 
