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Intermediate polypody (Polypodium interjectum) frond with ripe sori (spore clusters) by BOB GIBBONSSCIENCE PHOTO LIBRARY
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Fern sporangia in sorus light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Western sword fern (Polystichum munitum) Photo by K JAYARAMSCIENCE PHOTO LIBRARY
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Tropical fern leaf LM
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Fern frond LM
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View of the underside of a fertile frond of the common polypody fern Polypodium vulgare showing rows of yellow sori Each sorus is a circular aggrega
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Fern frond LM
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Fern frond LM
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Tropical fern leaf LM
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Fern frond LM
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Fern sorus and spore cases light micrograph
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Fern sorus and spore cases light micrograph
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Scaly male fern (Dryopteris affinis)
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus and spore cases fluorescence light micrograph
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Common polypody (Polypodium vulgare)
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Scanning electron micrograph (SEM) of spores on a maidenhair spleenwort (Asplenium trichomanes) frond Stomata (green ovals) are also seen on either s
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Maidenhair spleenwort spores SEM
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Fern sporangia Fluorescence light micrograph of sporangia on the underside of a fern frond Sporangia are spore-producing receptacles found in cluste
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Fern sporangium Fluorescence light micrograph of sporangium (spore case) from the underside of a fern frond Sporangia are spore-producing receptacle
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sporangia Fluorescence light micrograph of sporangia on the underside of a fern frond Sporangia are spore-producing receptacles found in cluste
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus and spore cases fluorescence light micrograph
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Bright field light micrograph of the underside of a maidenhair spleenwort (Asplenium trichomanes) leaf The grey areas contain sori clusters of spore
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Fluorescence light micrograph of the underside of a tree fern (Dicksonia antarctica) leaf The blue capsules are spores the reproductive cells of a f
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Fluorescence light micrograph of the underside of a tree fern (Dicksonia antarctica) leaf The blue capsules are spores the reproductive cells of a f
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The underside of a fern leaf displaying linear sori The brown structures are sori each of which consists of many sporangia Mother cells within the s
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Maidenhair Spleenwort SEM
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Fern sori (Dryopteris dilatata) bright field (BF) light micrograph Magnification x28 when printed at 10 centimetres wide
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Intermediate polypody (Polypodium interjectum) with spores Close-up of sporangia (yellow) on the underside of a fertile frond from an intermediate po
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Southern polypody (Polypodium australe) On the underside of this ferns leaflets are sori (orange) clusters of spore-producing structures known as s
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Fern (Pilularia sp) sporocarp Light micrograph of a section through a sporocarp from a pillwort fern showing a cluster (sorus) of megasporangia ins
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Irish spleenwort (Asplenium onopteris)
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The underside of a fern leaf The numerous brown structures are sori each of which consists of many sporangia Mother cells within the sporangia under
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Fern sporocarp Light micrograph of a transverse section through a sporocarp from a Marsilea fern This section reveals two rows (pink stripes) of sor
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Sori on the underside of fronds of the common polypody fern Polypodium vulgare The life cycle of a fern consists of alternating generations of which
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Polypody fern sori (Polypodium vulgare)
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Fern spore capsule polarised light micrograph Transverse section through the frond of a harts tongue fern (Phyllitis scolopendrium) showing the sp
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Fern spore capsule polarised light micrograph Transverse section through the frond of a harts tongue fern (Phyllitis scolopendrium) showing the sp
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Fern frond light micrograph
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Fern spore cases SEM
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Fern spore cases Coloured scanning electron micrograph (SEM) of a sorus on the underside of a fern leaf A sorus is a group of sporangia (brown) cove
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Fern leaf Coloured scanning electron micrograph (SEM) of the underside of a fern leaf showing sori A sorus is a group of sporangia (brown) covered
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Fern spore cases Polarised light micrograph of a frond of the maidenhair fern (Adiantum capillus- veneris) showing the sporangia (black centre left
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Fertile fern fronds Collection of various species of fern upturned to reveal the sori Left to right polypody (Polypodium vulgare) male fern (Dryp
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Fern sori Coloured scanning electron micrograph (SEM) of two sectioned sori (spore containing structures) on a leaf of the male fern Polystichum f
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The underside of a fern leaf The numerous brown structures are sori each of which consists of many sporangia Mother cells within the sporangia under
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The underside of an unidentified fern leaf The numerous brown structures are sori each of which consists of many sporangia Mother cells within the s
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Close-up of the underside of a leaf of the male fern Dryopteris filix-mas showing the spore- bearing structures known as sori The spores are con
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Light micrograph transverse section through the frond of a holly fern (Cyrtomium sp) showing the sorus A sorus is a spore-producing region on the un
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern sorus Fluorescence light micrograph of a sorus on the underside of a fern frond A sorus is a cluster of spore-producing receptacles called spor
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Fern fronds coloured X-ray The round structures are clusters of spore-bearing sporangia Spores are the reproductive cells of a fern
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Fern sorus confocal micrograph Fern sorus Laser scanning confocal micrograph of fern (Polypodium virginianum) sorus The sorus is a cluster of spor
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Close up of fern leaf with bumpy immature sporangia
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Close up of fern leaf with bumpy immature sporangia
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