Stomata of a horsetail leaf (Equisetum sp), scanning electron micrograph (SEM). The leaf is reduced to a scale on the joint of the stem. Stomata (sing

---

Stomata of a horsetail leaf (Equisetum sp), scanning electron micrograph (SEM). The leaf is reduced to a scale on the joint of the stem. Stomata (singular = stoma) are tiny openings in the epidermis of a plant that are surrounded by pairs of crescent-shaped cells, called guard cells, that facilitate gas exchange. Magnification: x345 when shortest axis printed at 25 millimetres.

---

Size: 3311px × 2639px
Photo credit: © DENNIS KUNKEL MICROSCOPY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, 92503b, black, cell, cells, equisetaceae, equisetales, equisetopsida, equisetum, exchange, false-colored, gas, grass, guard, horsetail, leaf, monochrome, plant, plants, pteridophyta, rush, scale, scouring, sem, snake, stoma, stomata, stomate, stomates, white