Algal Collection

Art of Diatom algae (from Ernst Haeckel)
Diatoms. Computer-enhanced engraving of assorted species of diatom. Diatoms are a group of single- celled algae. The two main morphological types of diatom are represented here

Pressed seaweed specimens C016 / 6127
Pressed seaweed specimens collected by women living in Jersey during the 1850s and 1860s

Dictyota dichotoma
Cyanotype photograph by Anna Atkins, one of the first natural history photographers. From British Algae: Cyanotype Impressions, 1853. Date: 1853

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Stephanopyxis sp. diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium morlandii diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Discosphaera tubifera, coccolithophore
Scanning electron microscope (SEM) showing the unicellular planktonic algae Discosphaera tubifera from the North Atlantic surrounded by a sphere of calcite plates - coccoliths

Calcareous phytoplankton, SEM
Calcareous phytoplankton. Coloured scanning electron micrograph (SEM) of the external mineralised structures (coccospheres) of small marine algal organisms called coccolithophores

Fucus bulbosus, kelp
Plate 161 from Fuci, or coloured figures and descriptions of the Plants referred by botanists to the genus Fucus (1808-1819), Volume III, by Mary Dawson Turner

Microcystis blue-green alga
Blue-green algae. Coloured transmission electron micrograph of a single cell of the blue-green algae Microcystis aeruginosa (also known as Anacystis cyanea)

Calcareous phytoplankton fossil, SEM Z100 / 0213
Calcareous phytoplankton fossil. Coloured scanning electron micrograph (SEM) of a fossil of the skeleton (coccosphere) of a coccolithotrope, a small marine algal organism

Fucus radiatus, kelp

Diatom alga, SEM
Diatom. Coloured scanning electron micrograph (SEM) of the surface of the mineralised cell wall (frustule) of an unidentified diatom. This is a planktonic unicellular alga

Plankton, artwork C016 / 3447
Plankton. Artwork of plankton as viewed under a magnifying glass

SEM of diatoms and blue-green algae
Diatoms & blue-green algae. Coloured scanning electron micrograph (SEM) of groups of Navicula sp. diatoms (brown). Also seen in the image are strands of blue-green algae (blue)

Macrocystis pyrifera, giant kelp
Giant kelp, also known as kelp forest, seaweed and sea grass. Specimen annotated as Macrocystis pirifera from South Africa, held at the Natural History Museum, London

Acanthoica acanthifera, coccosphere
Scanning electron microscope (SEM) image of a coccosphere, collected in the North Atlantic (x 25, 000 on negative). Artificially coloured by computer

Coelosphaeridium, calcareous alga

Diatoms
Selected slide of a group of fossil diatoms collected from Bori, Hungary in September 1895 and viewed under the light microscipe using differential interfereance contrast

Dinoflagellate plankton, SEM
Dinoflagellate plankton. Coloured scanning electron micrograph (SEM) of the calcareous (calcium-based) test (shell) of a dinoflagellate Calciodinellum sp

Emiliana huxleyi, coccolith
Scanning electron microscope image of a complete sphere of coccoliths from modern oceans. These are thin calcite shells protecting the coccolithophore within

Diatoms, SEM
Diatoms. Coloured scanning electron micrograph (SEM) of diatoms (Campylodiscus sp.). These microscopic, single-celled algae possess rigid and finely-sculpted cell walls known as frustules

Algae

Diatom alga, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Biddulphia sp. diatom. This is a marine planktonic unicellular alga. It has a mineralised cell wall (frustule) divided into two halves

Bloom of green algae Loch Leven Scottish Borders Scotland UK
MAB-647 Bloom of green algae Loch Leven Scottish Borders Scotland UK Mark Boulton Please note that prints are for personal display purposes only and may not be reproduced in anyway

Egg-wrack seaweed (Ascophyllum nodosum) in a sheltered sea loch. Photographed at low-tide at Loch Duich, north west Scotland

Chondrus crispus
Cyanotype photograph by Anna Atkins, one of the first natural history photographers. From British Algae: Cyanotype Impressions, 1853. Date: 1853

Amphiroa orbignyana, coralline red algae
Amphiroa algae specimen collected by Charles Darwin, held in Sir William Hookers private collection of preserved plant and algal specimens, Herbarium Hookeranium

Emiliania huxleyi coccolithophores collected from a bloom in the SW Approaches to the English Channel in June 2004. Date: 2004

Coastal wildlife, artwork C016 / 7191
Coastal wildlife. Computer artwork showing the varying forms of wildlife found at different depths on a gently sloping Mediterranean coast, with an inset showing sand-dwelling life (lower right)

LM of the diatom Pinnularia nobilis
Light micrograph of the diatom Pinnularia nobilis (centre), surrounded by other assorted diatoms. The diatoms are a distinctive group of single- celled algae containing about 10, 000 species

Pressed seaweed book full of mounted seaweeds collected by women living in Jersey during the 1850s and 1860s

Coccolith
Scanning electron microscope (SEM) image of a Folkestone chalk surface with Cretaceous coccoliths (x2500 on a standard 9 cm wide print)

Wig-wrack seaweed (Ascophyllum nodosum var. mackaii) in a sheltered sea loch. This rare species of brown seaweed has very specific environmental requirements

Seaweed colony. Extensive bed of seaweed in a sheltered sea loch. This is mainly wig-wrack (Ascophyllum nodosum var. mackaii, right)

Syracosphaera anthos
Coccosphere from the Western Mediterranean. False coloured to show the shell is formed of inner and outer layers of coccoliths with very different structure

Picture No. 11067437
Blue-green Phytoplankton Algal Bloom notice on tree. Abernethy National Nature Reserve, Loch Garten, Speyside, Inverness, Scotland. Date:

Mossy stone in lake, Lake Thingvallavatn, Thingvellir N. P. Iceland, June
Mossy stone in lake, Lake Thingvallavatn, Thingvellir N.P. Iceland, June

Sediments of Algal Bloom line the coast of Florida in the southern United States of America, giving the peninsula a greenish frame

Algal bloom in garden pond, Mendlesham, Suffolk, England, August

Algae amongst rocks in brackish water, High Coast, Gulf of Bothnia, Baltic Sea, Sweden

Seaweed F008 / 3397
Seaweed. Photographed in Anglesey, Wales

Calcareous phytoplankton fossil, SEM Z100 / 0212
Calcareous phytoplankton fossil. Coloured scanning electron micrograph (SEM) of a fossil of the skeleton (coccosphere) of a coccolithotrope, a small marine algal organism

Close-up of seaweed F008 / 3401
Seaweed. Photographed in Anglesey, Wales

Diatom, light micrograph C014 / 4673
Diatom. Differential interference contrast micrograph of a Gyrosigma sp. diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Scenedesmus algae, SEM C014 / 1461
Scenedesmus algae. Coloured scanning electron micrograph (SEM) of Scenedesmus sp. algae. Scenedesmus is a nonmotile colonial green algae that has its cells arranged in a row

Lichen, SEM C015 / 5082
Lichen, coloured environmental scanning electron micrograph (ESEM). Lichens are symbiotic organisms formed of a fungus and an alga that mutually benefit one another

Spirogyra algae, light micrograph C016 / 9592
Spirogyra algae. Polarised light micrograph of Spirogyra sp. algae. This filamentous green algae is named for the spiral arrangement of its chloroplasts (green)

Spirogyra algae, light micrograph C016 / 9594
Spirogyra algae. Rheinberg illuminated light micrograph of Spirogyra sp. algae. This filamentous green algae is named for the spiral arrangement of its chloroplasts (green)

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"Exploring the Intricate World Beauty" Immerse yourself in the captivating artistry of diatom algae, as depicted by Ernst Haeckel. These microscopic organisms showcase their intricate structures and mesmerizing patterns, reminding us of the boundless creativity found in nature. Pressed seaweed specimens C016 / 6127 offer a glimpse into the diverse forms and textures that algal species can take. From delicate filaments to robust fronds, each specimen tells a unique story of adaptation and survival in marine ecosystems. Behold the beauty of calcareous phytoplankton through scanning electron microscopy (SEM). The exquisite details captured reveal their ornate shells and elaborate architecture, serving as a testament to their vital role in oceanic food webs. Discosphaera tubifera, a coccolithophore, enchants with its spherical shape adorned by intricate calcium carbonate plates. This tiny organism plays an essential part in carbon cycling and contributes to the stunning white cliffs seen along some coastlines. Dictyota dichotoma showcases its elegant branching structure, exemplifying how algae can create complex habitats for other marine organisms. Its presence enriches coastal ecosystems while providing shelter for countless creatures. Diatoms take center stage once again under SEM's magnifying lens. Their symmetrical siliceous skeletons exhibit remarkable diversity – from star-shaped patterns to delicate lace-like designs – showcasing nature's endless ingenuity. Marvel at Fucus bulbosus or kelp's majestic presence as it sways gracefully beneath ocean currents. These large brown algae provide refuge for numerous marine species while contributing to nutrient cycling within coastal environments. Microcystis blue-green alga captivates with its vibrant hue amidst freshwater bodies. Though often associated with harmful algal blooms, this organism also serves ecological functions such as nitrogen fixation and oxygen production. Witness yet another diatom masterpiece through SEM imagery – their intricately sculpted shapes and delicate ornamentation never cease to amaze.