55.2 MB (3.1 MB compressed)
4394 x 4394 pixels
37.1 x 37.1 cm ⏐ 14.6 x 14.6 in (300dpi)
DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Virginia meadow-beauty seed capsule. Light micrograph of a section through a Virginia meadow-beauty (Rhexia virginica) seed capsule. The outer layer is the epidermis with a thick cuticle (blue). Under the epidermis is one layer of collenchyma. The capsule is divided into four, with a centre stem (blue), eight vascular bundles and four placentas (blue), each with a layer of collenchyma (red) and seeds attached. Some of the seeds contain embryos (black-red). Magnification: x7, when printed 10 centimetres wide.
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