Alga 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

19th-century alga cyanotype. Cyanotype of the algae Chylocladia kaliformis, as produced by British botanist Anna Atkins (1799-1871). Chylocladia is a seaweed found in European seas and oceans

19th-century alga cyanotype. Cyanotype of the algae Cystoseira fibrosa, as produced by British botanist Anna Atkins (1799-1871)

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 the Arachnoidiscus sp. diatom. The diatoms are a group of photosynthetic, single- celled algae containing about 10, 000 species

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

Pond life, macrophotograph. At centre is a water flea (Daphnia sp.). A copepod (Cyclops sp.) carrying eggs is at bottom centre. Part of a colony of Volvox sp. algae is at bottom right

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

Cup lichen (Cladonia floerkeana)
Lichen fruiting bodies (red). This lichen species is Cladonia floerkeana, found on heaths and moorlands. Lichens are formed from a symbiotic association between a fungus and an alga

Dried seaweed, Puerto Montt, Los Lagos Region, Chile

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

Fossilised diatoms, SEM

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

Diatom frustule, SEM
Diatom frustule. Coloured scanning electron micrograph (SEM) of the frustule of a Pinnularia sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 10

Diatom cell wall, SEM
Diatom cell wall. Coloured scanning electron micrograph (SEM) of the pattern of small holes, called striae, in the cell wall of a diatom alga. This is a Coscinodiscus sp. diatom

Lichen (Teloschistes chrysophthalmus) growing on a blackthorn (Prunus spinosa). Lichens are symbiotic organisms formed of a fungus and an alga that mutually benefit one another

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

Cyanobacteria, SEM
Cyanobacteria. Coloured scanning electron micrograph (SEM) of cyanobacteria (formally known as blue-green algae, blue). Several spores (pink) are also seen

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

Sea snail - murex head of becassine - Haustellum haustellum 1, black and white cone - cone hebraique - Conus ebraeus 2
FLO4646068 Sea snail - murex head of becassine - Haustellum haustellum 1, black and white cone - cone hebraique - Conus ebraeus 2, Episcopal miter -mitre episcopale - Mitra mitra mitra 3, dog conch

Pink coralline (Corallina officinalis), seaweed. Signed illustration N (Frederick nodder)
FLO4680407 Pink coralline (Corallina officinalis), seaweed. Signed illustration N (Frederick nodder). Lithography in The Naturalist's Miscellany, 1793

Bifurcaria bifurcata (tuberculated fucus, Fucus tuberculatus) (bifurcaire)
FLO4698752 Bifurcaria bifurcata (tuberculated fucus, Fucus tuberculatus) (bifurcaire) Handcoloured copperplate engraving after a drawing by James Sowerby for James Smith's English Botany

Bearded yellow byssus, Byssus barbatus (byssus or marine silk) Handcoloured copperplate engraving after a drawing by
FLO4698454 Bearded yellow byssus, Byssus barbatus (byssus or marine silk) Handcoloured copperplate engraving after a drawing by James Sowerby for James Smith's English Botany

Precious coral - red coral - Corallium rubrum 1, fused ivory tree coral, Oculina varicosa 2, bamboo coral
FLO4646439 Precious coral - red coral - Corallium rubrum 1, fused ivory tree coral, Oculina varicosa 2, bamboo coral, Isis hippuris 3, and bryozoan - flustre - Flustra foliacea 4

Channelled fucus, Pelvetia canaliculata (Fucus canaliculatus). Handcoloured copperplate engraving after a drawing by
FLO4699501 Channelled fucus, Pelvetia canaliculata (Fucus canaliculatus). Handcoloured copperplate engraving after a drawing by James Sowerby for James Smith's English Botany

Dictyota dichotoma (Green dichotomous wash, Ulva dichotoma), sea lettuce. Handcoloured copperplate engraving after a
FLO4699175 Dictyota dichotoma (Green dichotomous wash, Ulva dichotoma), sea lettuce. Handcoloured copperplate engraving after a drawing by James Sowerby for James Smith's English Botany

Fossils of various marine species - Chromolithography of Geology and Paleontology by Friedrich Rolle (1827-1887)
FLO4694044 Fossils of various marine species - Chromolithography of Geology and Paleontology by Friedrich Rolle (1827-1887)

France, Brittany, Morbihan (56), Belle Ile en Mer (Belle-Ile-en-Mer): collecting goemon on on a beach, 1890
LUX4805972 France, Brittany, Morbihan (56), Belle Ile en Mer (Belle-Ile-en-Mer): collecting goemon on on a beach, 1890; (add.info.: France, Brittany, Morbihan (56)

Various plant fossils, algae, insects and protozoa - Chromolithography of Geology and Paleontology by Friedrich Rolle
FLO4694247 Various plant fossils, algae, insects and protozoa - Chromolithography of Geology and Paleontology by Friedrich Rolle (1827-1887)

Various fossils: diatomees, algae, coniferes, sea urchin, mollusk and ammonitor- Chromolithography of Geology
FLO4694212 Various fossils: diatomees, algae, coniferes, sea urchin, mollusk and ammonitor- Chromolithography of Geology and Paleontology by Friedrich Rolle (1827-1887)

Fossils of various marine species faded - Chromolithography of Geology and Paleontology by Friedrich Rolle (1827-1887)
FLO4694142 Fossils of various marine species faded - Chromolithography of Geology and Paleontology by Friedrich Rolle (1827-1887)

Fucus vesiculosus, and sea moss, Alsidium helminthochorton. Copied from William Clark's illustration in Churchill
FLO4599018 Fucus vesiculosus, and sea moss, Alsidium helminthochorton. Copied from William Clark's illustration in Churchill

Red oak-leaved fucus, Phycodrys rubens (Fucus sinuosus). Handcoloured copperplate engraving after a drawing by James
FLO4699475 Red oak-leaved fucus, Phycodrys rubens (Fucus sinuosus). Handcoloured copperplate engraving after a drawing by James Sowerby for James Smith's English Botany

Undine or Ariel, Sea Nymph, Victorian costume stage. She wears a green dress over a pink petticoat
FLO4656178 Undine or Ariel, Sea Nymph, Victorian costume stage. She wears a green dress over a pink petticoat, all decorated with sea shells, coral and seaweed, holds a wand with seastar

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"Discovering the Intricate Beauty of Algae: From Ernst Haeckel's Art to 19th-Century Cyanotypes and SEM Images" Immerse yourself in the captivating world of algae, as we delve into its mesmerizing artistry and scientific wonders. Ernst Haeckel, a renowned biologist and artist, showcases the delicate intricacy of diatom algae through his stunning illustrations. These masterpieces reveal the symmetrical beauty hidden within these microscopic organisms. Step back in time with pressed seaweed specimens C016 / 6127 from centuries ago. Preserved meticulously, they offer a glimpse into the diverse forms and colors that algae can take on. The cyanotype technique used during the 19th century captures their essence in ethereal blue hues, adding an enchanting touch to their already fascinating nature. Calcareous phytoplankton observed under scanning electron microscopy (SEM) unravels another layer of algal marvels. Discosphaera tubifera, a coccolithophore species adorned with intricate calcium carbonate plates, showcases nature's architectural genius at work. Dictyota dichotoma emerges as a striking example of brown algae thriving along coastlines worldwide. Its branching structure creates an artistic spectacle underwater while providing essential habitats for marine life. Diatoms continue to amaze us with their geometric patterns when viewed under SEM imaging techniques. Their microscopic beauty is unveiled through meticulous detailing that reveals their remarkable diversity and ecological significance. Venturing further into aquatic realms, Fucus bulbosus or kelp stands tall as one of nature's giants beneath ocean waves. This majestic alga plays a crucial role in coastal ecosystems by offering shelter to numerous marine organisms. Pond life surprises us with its vibrant assortment of microorganisms where diatoms once again steal the show under SEM imaging techniques. Their intricate designs resemble miniature works of art floating amidst water bodies' tranquility.