Thornapple seed. Light micrograph of a section through a seed from a thornapple (Datura stramonium) plant. The seed contains two coalescent carpels and two rows of seeds. When ripe,the capsule splits into four. From outside to the centre: testa (surface) of the seed; pericarp (yellow); endosperm (brown-yellows),which stores nutrients of starch and proteins; embryo; two cotyledons,in between the plumule,and the radical and in between the hypocotyl. Magnification: x5,when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 3744 px × 3744 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |