pollinium

American  

[puh-lin-ee-uhm] / pəˈlɪn i əm /

noun

Botany.

pollinia plural

1. an agglutinated mass or body of pollen grains, characteristic of plants of the orchid and milkweed families.

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pollinium British  

/ pəˈlɪnɪəm /

noun

1. a mass of cohering pollen grains, produced by plants such as orchids and transported as a whole during pollination

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pollinium Scientific  

/ pŏ-lĭn′ē-əm /

pollinia plural

1. A mass or packet of pollen grains specialized for transfer to other flowers as a unit by pollinating insects. Orchids and milkweeds produce pollinia.

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Other Word Forms

Noun Inflected Forms

• pollinia
  plural

Etymology

Origin of pollinium

1860–65; < New Latin, equivalent to pollin- (stem of pollen ) pollen + -ium -ium

Example Sentences

See Examples For:

pollinium pollinia

At the base of the pedicel is a small viscid disc by which the pollinium is attached to the head or proboscis of one of the insects which visit the flower.

From Darwin and Modern Science by Seward, A. C. (Albert Charles)

In this latter case we have a pollinium in its most highly developed and perfect condition.

From The Origin of Species by means of Natural Selection, 6th Edition by Darwin, Charles

The seed vessel to be fertilized is very sticky, "but not so viscid as when touched by a pollinium to pull the whole off an insect's head."

From The Relations of Science and Religion The Morse Lecture, 1880 by Calderwood, Henry

A pollinium, when highly developed, consists of a mass of pollen-grains, affixed to an elastic foot-stalk or caudicle, and this to a little mass of extremely viscid matter.

From The Origin of Species by means of Natural Selection, 6th Edition by Darwin, Charles

Darwin demonstrated that in Orchis and other flowers the pedicel of the pollinium, after its removal from the anther, undergoes a curving movement.

From Darwin and Modern Science by Seward, A. C. (Albert Charles)

Indeed, in lineages that have pollinia, the speciation rate was 5.1% higher than in lineages that don’t, Givnish and colleagues report this week in the Proceedings of the Royal Society B.

From Science Magazine ● Aug. 25, 2015

The clinandrum is largely developed in Malaxis, and is of considerable importance in retaining the pollinia, which as soon as the flower opens are quite loose.

From More Letters of Charles Darwin — Volume 2 by Darwin, Francis, Sir

In either case the change of position in the pollinia would insure the same result.

From My Studio Neighbors by Gibson, William Hamilton

The pollen, or more correctly, the pollen-tetrads, remain fastened together as club-shaped pollinia usually borne on a slender pedicel.

From Darwin and Modern Science by Seward, A. C. (Albert Charles)

This reminds me that I carefully described to Huxley the shooting out of the pollinia in Catasetum, and received for an answer, "Do you really think that I can believe all that!"

From More Letters of Charles Darwin — Volume 2 by Darwin, Francis, Sir