the sticky part of the male pollina so that it can adhere to an insects back for transport to a female flower part
A clearly defined sticky part of the rostellum which is removed together with the pollinia as a unit.
(from the article `Orchidales`) ...insect. A further specialization occurs in more advanced orchids in which the caudicles of the pollinia are already attached to the rostellum and ...
the sticky part of the male pollina so that it can adhere to an insects back for transport to a female flower part
viscidium 1. In orchid flowers, a sticky disc at the end of the stalk of the pollinium, by which it is attached to an insect's head. 2. A sticky substance in flowers used to collect pollen or pollinia; entomological orchid pollination uses the viscidium dually. When an insect initially becomes engaged with a second flower of a compatible species, ...
a viscid part of the rostellum which is clearly defined and removed with the pollinia as a unit to attach the pollinia to the pollinator