Jelly lichen, SEM

Jelly lichen, SEM

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Caption: Jelly lichen (Collema fuscovirens), coloured scanning electron micrograph (SEM). Lichens are organisms formed by the symbiotic association of a fungus and an alga or cyanobacterium. The algal cells use photosynthesis to produce nutrients which are absorbed by fungal hyphae that surround and penetrate the algae. Fungal hyphae also absorb minerals from rainwater or acidic digestion of the substrate. Collema lichen are classified as foliose due to their flat appearance and leaf-like structures. They are found on rock surfaces and appear as dark and gelatinous when wet. Magnification: x24 when printed 10 centimetres wide.

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Keywords: alga, algae, biologicalplant, biology, botanical, botany, collema fuscovirens, coloured, cyanobacteria, false-coloured, flora, foliose, fungi, fungus, gelatinous, green algae, jelly, jelly lichen, jelly-like, leafy, lichen, lichens, microbiological, microbiology, mutualism, mycology, nature, plant, scanning electron micrograph, scanning electron microscope, sem, symbiosis, symbiotic, thallus

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