English: Confocal laser scanning fluorescence micrograph of thale cress anther (part of stamen). The picture shows among other things a nice red flowing collar-like structure (just below the anther) that makes it somehow similar to jellyfish. However, an intact thale cress stamen does not have such collar, this is a fixation artefact: the stamen has been cut below the picture frame, and epidermis (upper layer of cells) of stamen stalk has peeled off, forming a non-characteristic structure.