= bee-bread, n. 2. Obsolete.

Botany. A pollen grain. Obsolete.

Pollen; a grain of pollen. Also: the spores of a lycopodium; a preparation of this (= lycopodium, n. 2); cf. sense 5. Obsolete.

Pollen, especially after it has been collected by honeybees, mixed with nectar and saliva, and stored as food for workers and brood; = bee-bread, n.…

In various scientific uses. Botany. = Pollen.

The fine granular or powdery substance produced by the anthers of a flowering plant or the male cones of a gymnosperm, consisting of microscopic…

pollen.

rough wax: a term formerly applied to the pollen adhering to the legs of bees, which was erroneously supposed to be the crude substance from…

yellow particulate material, spec. pollen or bee excrement containing pollen, falling from the air in rain or on the wind; a fall of such…

Applied to the pollen of flowers.

The substance contained in the pollen-cells.

= pollen, n. 2.

an aggregation of pollen grains; esp. a pollinium.

a microscopic tube formed by protrusion of the intine of a germinating pollen grain, which grows towards and conveys the fertilizing male gametes to…

An inner coating of the pollen grain within the extine.

a microspore of a seed plant, consisting of one or more cells surrounded by a two-layered wall, and containing (in life) a developing male gamete.

(a) Botany a pollen grain, or the male gamete derived from it (now rare); (b) Alternative Medicine (in plural) pollen taken from honeycomb and…

The resistant outer layer of the wall of a pollen grain. Cf. extine, n.

Originally: an additional layer of the wall of a pollen grain which is found between the intine and exine and lies next to or resembles the intine…

The inner membrane of the pollen grain.

A cohesive mass of pollen grains formed within a pollen sac, serving as a unit of pollination and characteristic of plants of the families Orchidaceae…

= sulphur rain n.

a pollinium; cf. pollen mass n. at pollen, n. compounds 2.

a cavity at the micropylar end of the ovule in some gymnosperms, in which pollen is retained prior to fertilization.

transferred. The pollen of the yew when scattered in a cloud.

each of the chambers (in angiosperms usually four in each anther) in which pollen is formed; the microsporangium of a seed plant.

The pollinium of a flowering plant, esp. an orchid.

(see quot. 1882).

= pollen chamber n. at pollen, n. compounds 2.

In early use: the outermost layer of the exine of a pollen grain (now disused). Later: an outer layer surrounding the wall of the spore in ferns…

Botany. The structural ornamentation of the surface of a pollen grain or spore.

Botany. A pollen grain or spore dispersed individually, rather than linked with others.

In the wall of a pollen grain or spore: the inner layer of the exine, lacking the sculpturing characteristic of the outermost layer (the sexine).

In the wall of a pollen grain or spore: the outer layer of the exine, which has a distinctively sculptured surface. Cf. nexine, n.