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    Papillae on the upper surface of a rose flower petal (Rosa sp), coloured scanning electron micrograph (SEM). — Stock Photo
    Papillae on the upper surface of a rose flower petal (Rosa sp), coloured scanning electron micrograph (SEM).
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant. — Stock Photo
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant.
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem. — Stock Photo
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem.
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Pollen grains of mimosa flower, digital illustration. — Stock Photo
    Pollen grains of mimosa flower, digital illustration.
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Close-up illustration of pollen grain of mimosa and mimosa flowers. — Stock Photo
    Close-up illustration of pollen grain of mimosa and mimosa flowers.
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Abutilon sp. pollen grain — Stock Photo
    Abutilon sp. pollen grain
    Close Look At Anatomy Of Leaf — Stock Photo
    Close Look At Anatomy Of Leaf
    Colored scanning electron micrograph of pollen grains from marigold flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from marigold flower.
    Light micrograph of a cross sections of monocot stem. — Stock Photo
    Light micrograph of a cross sections of monocot stem.
    Pollen grains of mimosa flower, digital illustration. — Stock Photo
    Pollen grains of mimosa flower, digital illustration.
    Digital illustration of pollen grains on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grains on anther of Chinese hibiscus flower.
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Digital illustration of pollen grains on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grains on anther of Chinese hibiscus flower.
    Flowering currant pollen — Stock Photo
    Flowering currant pollen
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.
    Marsh marigold carpel — Stock Photo
    Marsh marigold carpel
    Colored scanning electron micrograph of starch grains in seed of legume. — Stock Photo
    Colored scanning electron micrograph of starch grains in seed of legume.
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant. — Stock Photo
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant.
    Digital illustration of pollen grains on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grains on anther of Chinese hibiscus flower.
    Colored scanning electron micrograph of starch grains in seed of legume. — Stock Photo
    Colored scanning electron micrograph of starch grains in seed of legume.
    Abutilon pollen grain — Stock Photo
    Abutilon pollen grain
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Conductive vessel element in mountain mahogany wood (Cercocarpus sp), coloured scanning electron micrograph (SEM). — Stock Photo
    Conductive vessel element in mountain mahogany wood (Cercocarpus sp), coloured scanning electron micrograph (SEM).
    Digital illustration of pollen grains on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grains on anther of Chinese hibiscus flower.
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Plant cells, 3d illustration — Stock Photo
    Plant cells, 3d illustration
    Plant cells, 3d illustration — Stock Photo
    Plant cells, 3d illustration
    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow).
    Pollen grain, light micrograph. Pollen grain is the microscopic body that contains the male reproductive cell of a plant. — Stock Photo
    Pollen grain, light micrograph. Pollen grain is the microscopic body that contains the male reproductive cell of a plant.
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (grey) and large intercellular air spaces (holes). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (grey) and large intercellular air spaces (holes).
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Plant cells, 3d illustration — Stock Photo
    Plant cells, 3d illustration
    Light micrograph of a plant stem cross section. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of a plant stem cross section. Haematoxylin and eosin stain.
    Leaf epidermis, light micrograph. Leaf epidermis has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration. — Stock Photo
    Leaf epidermis, light micrograph. Leaf epidermis has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration.
    Plant cells, 3d illustration — Stock Photo
    Plant cells, 3d illustration
    Pollen grains of mimosa flowers, digital illustration. — Stock Photo
    Pollen grains of mimosa flowers, digital illustration.
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Broom pollen grain — Stock Photo
    Broom pollen grain
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.
    Clematis montana pollen — Stock Photo
    Clematis montana pollen
    Angel trumpets pollen grain — Stock Photo
    Angel trumpets pollen grain
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.