Pollinium, or plural pollinia, is a coherent mass of pollen grains.

They are the product of only one anther, but are transferred, during pollination, as a single unit. This is regularly seen in various plants, such as orchids and many species of milkweeds (Asclepiadoideae).

Most orchids have waxy pollinia. These are connected to one or two elongate stipes, which in turn are attached to the sticky viscidium.

Some orchid genera have mealy pollinia. These are tapering into a caudicle (stalk), attached to the viscidium. They extend into the middle section of the column.

The combination of pollinia, caudicles, stipes and viscidium form the pollinarium.

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  • Pollinium — Pol*lin i*um, n.; pl. {Pollinia}. [{NL}. See {Pollen}.] (Bot.) A coherent mass of pollen, as in the milkweed and most orchids. [1913 Webster] …   The Collaborative International Dictionary of English

  • Pollinĭum — (lat.), s. Pollen, S. 107 …   Meyers Großes Konversations-Lexikon

  • Pollinium —   [zu lateinisch pollen, pollinis »Mehlstaub«] das, s/...ni |en, Pollenkörbchen, zusammenhängende Pollenmasse einer Staubbeutelhälfte (Theka) bei verschiedenen Blütenpflanzen, die geschlossen von Blüten besuchenden Insekten verschleppt wird (z. B …   Universal-Lexikon

  • Pollinium — ⇒ Pollenkitt …   Deutsch wörterbuch der biologie

  • pollinium — [pə lin′ē əm] n. pl. pollinia [pə lin′ēə] [ModL < L pollen: see POLLEN] Bot. a mass of pollen grains stuck together and transferred as a whole in pollination, often by an insect …   English World dictionary

  • Pollinium — Breitblättrige Stendelwurz gut zu erkennen sind die Narbe, darüber die Klebdrüse und die unter der Antherenkappe hervortretenden Pollinien …   Deutsch Wikipedia

  • pollinium — noun (plural pollinia) Etymology: New Latin, from pollin Date: 1862 a coherent mass of pollen grains often with a stalk bearing an adhesive disk that clings to insects …   New Collegiate Dictionary

  • Pollinium — …   Википедия

  • pollinium — /peuh lin ee euhm/, n., pl. pollinia / lin ee euh/. Bot. an agglutinated mass or body of pollen grains, characteristic of plants of the orchid and milkweed families. [1860 65; < NL, equiv. to pollin (s. of pollen) POLLEN + ium IUM] * * * …   Universalium

  • pollinium — noun A coherent mass of pollen, as in the milkweed and most orchids, which is dispersed as a single unit during pollination. Syn: polyad See Also: pollinarium …   Wiktionary

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