Our very own strain, yielding a large cellular oil content.The floating planktonic cells are yellowish-green from the cells oil contents.When squashed under a coverslip the cells release globules of oil. Accumulated residual deposits are source of coal & o...

Planktonic needle-like unicells.

Similar to Chlamydomonas but with 4 flagella.

A small phototrophic phytoflagellate,good for showing motile,unicellular morphology.

Heterothallic mating strains for demonstrating isogamous conjugation.

Our own vigorous strain easily cultured in simple Medium. Non-motile, spherical unicells with a single parietal chloroplast. Useful alga for showing oxygen liberation during photosynthesis. Or for use in haemacytometers as substitute for blood corpuscles.

Smaller cells than A60. Cells stay in suspension for several weeks, however the strain takes much longer to achieve a dense culture.

Simple unicells with a prominent chloroplast and pyrenoid.\r\n50ml culture

50ml culture of concentrated unicellular algal food for feeding Water Bears. Cultures remain viable for several weeks . Chlorococcum cells are non-motile and will have settled out on the bottom of the culture vessel on arrival. These concentrated cells can ...

Branched, filamentous alga with long cylindrical cells, each containing a compact reticulated chloroplast.Asexual reproduction is by quadriflagellate zoospores. The life cycle illustrates an isomorphic alternation of a diploid asexual generation with a ha...

Exemplary species for showing textbook morphology. A beautiful example of a typical placoderm desmid, crescent shaped unicells containing two chloroplasts with several distinct pyrenoids.

Very large, elongated form.

Attractive desmid with 2 stellate chloroplasts.

Gametophytic 'halicystis' and diploid 'derbesia' generations.

Typical filamentous placoderm sp.

Mucilaginous colonial cells joined together by old cell walls.

Small halophilic biflagellate, the motile cells lack a cellulose wall and have only a cell membrane. Tolerates high salinity and is generally found in brackish and marine waters.

Marine, multicellular macro-algae with a hollow, tubular thalli one cell thick. Reproduces asexually by the formation of quadriflagellate zoospores, and sexually by isogametous fusion of biflagellate gametes produced from heterothallic filaments.

Large unicells with many discoid chloroplasts

Colonies (coenobia) of up to 64 biflagellate cells.

Simple flat, plate-like colonies (plakea) of biflagellate cells.

Unusual, motile unicells with two visibly distinct flagella and a protoplast suspended within the cell by cytoplasmic strands. Cells exposed to intense illumination form bright red (haematochrome) akinetes or cysts.

Concentrated culture of viable red cysts ( akinetes).

'Water net' free floating macroscopic mesh-like colonies composed from thousands of interlinked cells. Asexual reproduction is prolific and creates multiple daughter nets which can become invasive in lakes over summer.

A majestic placoderm species, highly recommended for inspiring an interest in algae. The large cells show colourful bilateral symmetry and two extensive chloroplasts. A very attractive and rewarding desmid to observe.

Large placoderm desmid having several chloroplasts.

Filamentous with overlapping H-cell walls;zoosporic.

Filamentous alga similar to Spirogyra but having a flat, ribbon like (axial) chloroplast.

Homothallic filamentous sp.,produces zoospores

Heterothallic female strain.

Filamentous desmid with cells joined by spines.

Essentially a cluster of chlamydomonad cells enclosed in a gelatinous sheath to form an ovoid,motile colony.

Planktonic cells united in attractive, stellate colonies. The life cycle is remarkably complex and fascinating to study.

Filamentous alga showing akinetes.

Easily cultured marine 'food flagellate' for aquaculture.

Large attractive volvocale.

Simple terrestrial, palmelloid alga.

A very large and attractive, elongate placoderm desmid.

Marine, quadriflagellate cells

Simple coenobia of 4 to 8 cells, reproduces by autospores.

An excellent example of a typical planktonic algae and amenable for demonstrating photosynthetic, oxygen liberation and primary productivity.

Clusters of planktonic lunate unicells.

Multichloroplast strain with a conspicuous nucleus.

Placoderm desmid with triangular cells

Small elegant colonies of biflagellated cells

Filamentous cells readily produces flagellated spores.

Marine quadriflagellate used as aquaculture food organism.

Red pigmented, filamentous aerophytic alga producing gametangia and sporangia.

Filamentous; reproduces by asexual & sexual motile spores.

Most impressive of all the volvocales, with thousands of individual, flagellated cells forming a single colony (coenobia) and often with interior daughter colonies present.

Colonies of cells without cytoplasmic connections.

Filamentous species with characteristic star-shaped (stellate) chloroplasts.

Mucilaginous filamentous Desmid

Spiny Desmid

An ornamented placoderm Desmid

A small sculptured desmid

Large, attractive pennate cells with deeply indented chloroplasts

A superb naturally sculptured desmid isolated from a Snowdonia lake. 50ml culture

Marine unicellular,non-motile alga and energy rich food for mariculture . A good source of omega-3-fatty acids.

Marine dinoflagellate, naked membranous theca.

Large freshwater 'armoured' dinoflagellate

A marine dinoflagellate, seasonal blooms can be the cause of \u2018red tides\u2019 which produce a toxin poisonous to fish.

Primitive toxic marine dinoflagellate with bivalve theca.

A large, autotrophic freshwater dinoflagellate, the species is 'armoured' and shows numerous sculptured thecal plates.

Small marine dinoflagellate, no chloroplast, holozoic and ingests small microorganisms

Planktonic marine, bioluminescent dinoflagellate (Pyrocystis lunula) Demonstrates circadian rhythm controlled bioluminescence. The algae needs to be kept at room temperature (15-23 Celsius) in the light for approx.12 hours (to simulate a daylight photoperio...

An intriguing brown planktonic dinoflagellate with prominent 'horns' and thecal plates.\r\n50ml culture

Large sigmoid diatom excellent for showing typical gliding movement

A star shaped (stellate), planktonic diatom and a very good introductory species for illustrating the intriguing morphology and diversity of shape unique to these silicified algae.

An excellent filamentous sp. Isolated from Crosemere.

A filamentous, centrale diatom with circular valves, the frustules are linked end to end by mucilaginous secretion to form long cylindrical filaments, The filaments frequently show auxospore formation.

Characteristic 'boat-shaped' valves with distinct raphe.

A typical freshwater pennate diatom having two axially adjacent chromatophores. Cells show typical gliding movement.

An exemplary, marine planktonic species with long tapering frustules terminating in needle-like spines.

A prolific marine 'food diatom' for aquaculture use.

A large, ornamented pennate species; an aristocrat amongst diatoms.

An excellent example of a large pennate diatom. Lanceolate frustules with intense brown pigment.

A round (centric) planktonic diatom from Crosemere.

Large, elongated pennate diatom.

Long chains of rectangular frustules linked together in characteristic zig-zag fashion

Large pennate with undulating frustules

Small marine circular (centrale) diatom.

Freshwater pennate diatom with attractive undulating frustules

Terrestrial, siphonaceous vesicles; zoosporic.

Zoosporic filaments which form H-walled cells.

A filamentous algae which lacks a transverse cell wall (coenocytic), the species is homothallic and develops asexual and sexual stages in culture. Observation of the filaments often reveals zoosporangia, oogonia and antherdia. Zoospores are readily liberate...

Tiny, biflagellate chrysomonad, two unequal flagella.

A colonial flagellate with pear-shaped cells that have no cell wall but have a periplast embedded with spirally arranged siliceous scales. Each cell contains two golden brown chromatophores and the cells are united by posterior stalks to form radiately arra...

Shows coccoliths on cell wall.

Easily cultured marine 'food flagellate'.

Marine 'food flagellate' for aquaculture.

Freshwater cryptomonad with brown pigmented cells.

Red pigmented marine cryptomonad.

A vigorous motile freshwater species with distinctive brown chloroplasts

Small vigorously motile freshwater species with distinctive blue/green chloroplasts

Small motile freshwater flagellate with distinctive red/brown chloroplasts.

Filaments of bead-like cells with conspicuous, intercalary heterocysts. An excellent species for investigating cyanobacteria morphology and life cycle.\r\n

Mucilaginous coccoid colonies of up to 8 cells.

Multiseriate, branched filaments.

Colonies of simple, spherical unicells surrounded by a gelatinous sheath.

Tapering trichomes showing basal heterocysts.

Filamentous mats of uniseriate trichomes.

Colonies of compact,spherical cells; often forming seasonal \u2018algal blooms\u2019 which can be toxic to fauna.

Marine filamentous species. Shows intercalary heterocysts.

Unusual, jelly-like colonies of twisted trichomes embedded in a mucilaginous secretion. Colonies need to be crushed under a coverslip to observe the multicellular trichomes, often with heterocysts, akinetes and hormogonia.

Simple, unbranched multicellular filament.The trichomes exhibit positive phototactic response towards light and show typical gliding movement over the substrate.

Much better than Oscillatoria for showing filamentous cells and hormogonia.

Large spiral trichomes and an excellent cyanophyte demonstration species. NOT FOR HUMAN CONSUMPTION. .

Shows true branching and multiseriate cell formation.

Tufts of trichomes, an efficient nitrogen fixer and used for \u2018seeding\u2019 paddy fields.Shows false branching.

Simple, planktonic mucilaginous,single cells.\r\nSyn.Anacystis nidulans

Epithytic branched filaments;monospores.

A colourful example of a red, filamentous marine alga to exemplify their complex and interesting life cycle.\r\n50ml culture

Branched filamentous marine alga which shows carpogonia.

A superb freshwater 'red' alga with a fascinating life cycle

Beautiful thalloid red alga with deep crimson fronds.\r\n50ml culture.

Single spherical cells united in a colonial mucilage.

Branched, filamentous alga, often epiphytic and attached by a rhizoidal base. The complex life cycle involves both haploid and diploid generations.

Elegantly branched, 'Sea Fern'

Large -celled, branched thallus.