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Pollen-grains cohering into a single group and distributed as such (e.g. in derived subfamilies of Apocynaceae and Orchidaceae). The waxy body of pollen produced in the milk weed family. A tightly-bound cluster of pollen grains that is distributed as one unit, as in some Apocynaceae and Orchidaceae. A sticky mass of pollen grains cohering together…

Agent effecting the pollination.  

The transfer of pollen from anther to stigma. The act of transference of pollen between flowers. The transfer of pollen by wind or insects from anther to stigma in flowering plants or from male cone to female cone in coniferous plants to start the process of fertilizing the ovules. The transfer of pollen, often facilitated…

(Of asclepioid or orchid flowers) the complete set of pollinia from one or more anthers; (In some more derived subfamilies of Apocynaceae) complete set of pollinia plus the corpusculum and translator arms; (In orchids) viscidium, or viscidium and stipe, or the whole structure of pollinia, caudicles, stipes etc.; when there are two viscidia, each half…

The stamen-chamber in which pollen is formed.  

Pollen-grains cohering into a single body (pollinium). Applied when the grains cohere into a mass.  

Multicellular structure containing a single set of chromosomes that produces the male sperm cells of seed plants. The germinated, usually two-celled, microspore of seed plants.  

(In pollen) a grain viewed with the polar axis facing the observer, i.e. at right angles to the equator.