50.0 MB (838.2 KB compressed)
4675 x 3738 pixels
39.6 x 31.8 cm ⏐ 15.6 x 12.5 in (300dpi)
GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Green alga. Differential interference contrast micrograph of the desmid green alga Xanthidium armatum. Desmids are a common group of freshwater single-celled algae that have intricate cell walls. Xanthidiums are placoderm desmids, which have the cell wall divided into two symmetrical halves, joined by a thin central region called the isthmus. Xanthidiums are highly adapted to nutrient poor, acidic water. Magnification: x225 when printed at 10 centimetres wide.
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