Primrose (Primula vulgaris), une fleur de printemps, Royaume-Uni. Gros plan des deux types de fleurs, fleurs à œil piqué (en haut) et fleurs à œil de thrum (en bas).

• Contributeur: Gillian Pullinger
• ID de l’image: 2J1KPMY
• Taille du fichier: 68,7 MB (1,5 MB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 4000 x 6000 px | 33,9 x 50,8 cm | 13,3 x 20 inches | 300dpi
• Date de la prise de vue: 26 mars 2022
• Lieu: Hampshire, England, UK

Informations supplémentaires

Primroses are unusual in having two almost identical, yet slightly different types of flowers. In one type, there is a greenish disc (pin-eyed), while in the other (thrum), there is instead a cluster of bright yellow anthers. In pin-eyed flowers, the stigma is at the top of the flower tube and can be seen in the centre of the flower looking like a small green pin head. In this type of flower, the anthers are halfway down the central flower tube, in a ring around the style. In the thrum-eyed type, the style reaches only halfway up the flower tube, so that the stigma is also positioned halfway up inside the tube. The anthers in this type are at the top of the flower tube and can be seen as a yellow/orange mass in the centre of the flower. The two different flower structures prevent self-pollination.

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