The two pollinia in Orchis Morio contain each about 200 secondary smaller masses.
C. Pinch-trap flowers, as in the family Asclepiadaceae, where the proboscis, claw or bristle of the insect is caught in the clip to which the pairs of pollinia are attached.
In orchidaceous plants the pollen-grains are united into masses, or pollinia (fig.
In Asclepiadaceae the pollinia are usually united in pairs (fig.
The number of pollinia varies; thus, in Orchis there are usually two, in Cattleya four, and in Laelia eight.
The pollinia are also provided with an appendicular staminal covering (fig.