BOTANY

Page 1. PHYCOLOGY -ALGOLOGY : ALGAE  

A. Diatomeae – Diatoms

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Arachnoidiscus, central marine diatoms

Coscinodiscus, central marine diatoms, mixed species

Diatomeous earth, a mixture of various fossil diatoms

Diatoms from fresh water, fixed and stained to show the chromatophores

Diatoms marine, fixed and stained to show the chromatophores

Diatoms, fixed and stained to show the chromatophores

Diatoms, fossil from fresh water, mixed species

Diatoms, fossil marine, mixed species

Diatoms, recent from fresh water, mixed species

Diatoms, recent marine, mixed species

Pleurosigma angulatum, for testing microscope resolution, nd 1,0

Silicoflagellates, Distephanus and others, w.m.

Surirella gemma, for testing microscope resolution, nd 1,0

Synedra ulna, species from fresh water

Triceratium and Tricnaria, triangular marine diatoms

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B. Division Cyanophyta – Blue-Green Algae

BO001

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Anabaena or Oscillatoria, nuclear stain

Anabaena, thread shaped blue-green algae with heterocysts w.m.

Aphanizomenon, single filaments of various length w.m.

Aphanothece, small single cells in colonies w.m.

Arthrospira, filaments in regular spirals w.m.

Beggiatoa, a colourless alga showing lack of chlorophyll

Chroococcus, large single celled blue-green algae w.m.

Cylindrospermum, with heterocysts and spores w.m.

Fischerella (Hapalosiphon), branched filaments w.m.

Gloeocapsa, small colonies within sheaths w.m.

Gloeotrichia, forming akinetes w.m.

Lyngbya, filamentous algae within sheaths w.m.

Merismopedia, flat colonies w.m.

Microcystis, irregular colonies w.m.

Mixed blue-green algae, many different species in one slide for comparison w.m.

Nostoc caeruleum, unbranched filaments, w.m.

Nostoc gunnerae, symbiotic algae living in the stem of Gunnera, section

Nostoc or other blue-green alga, special preparation for nuclear material, Feulgen stain

Nostoc zetterstettii, a gelatinous alga, unbranched filaments, w.m.

Nostoc, section for finer details of filaments and sheaths

Nostoc, w.m. shows filaments and heterocysts

Ophridium versatile, a gelationous alga, filaments with heterocysts

Oscillatoria, a blue-green filamentous alga w.m.

Oscillatoria, mucous sheath stained, w.m.

Oscillatoria, thin sections specially stained to show the nuclear material

Rivularia, with basal heterocysts w.m.

Scytonema, trichomes with false branchings w.m.

Scytonema, trichomes with false branchings w.m.

Spirulina, unicellular spirals w.m.

Stigonema, branched thallus w.m.

Tolypothrix, a blue-green alga with false branchings w.m.

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C. Conjugates

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Closterium, a crescent-shaped desmid w.m.

Comarium, a common desmid with isthmus w.m.

Hyalotheca, a filamentous desmid w.m.

Mesothaenium, a small rod-shaped desmid w.m.

Micrasterias, large plate-shaped desmids w.m.

Mixed desmids of various forms, strewn slide w.m.

Mougeotia, a filamentous alga with flat chloroplasts w.m.

Spirogyra, a common alga with spiral chloroplasts, w.m. of vegetative filaments, carefully stained. For gen. study

Spirogyra, in lateral conjugation w.m. +

Spirogyra, in scalariform conjugation and after the stage of conjugation, w.m.

Spirogyra, in scalariform conjugation showing zygotes w.m., a large species with several chloroplasts in each cell

Spirogyra, showing formation of zygotes w.m.

Spirogyra, vegetative w.m., a large species with several chloroplasts in each cell

Spirogyra, vegetative w.m., a small species with single chloroplast in each cell

Staurastrum, double cells with spines w.m.

Zygnema, in conjugation and after conjugation with zygotes w.m.

Zygnema, vegetative filaments with stellate chloroplasts w.m.

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D. Chlorophyta - Green Algae

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Acetabularia, a marine species with an umbrella-shaped thallus w.m.

Bryopsis, marine green algae w.m.

Bulbochaete, sessile filaments w.m.

Carteria, unicellular algae with four flagella w.m.

Chaetophora, thallus with many branches w.m.

Chlamydomonas, small biflagellate algae w.m.

Chlamydomonas, specially stained to show the flagella

Chlorella, small unicellular green algae, w.m.

Chlorococcus, living on ground, hollowsphere-shaped chloroplasts

Cladophora, branching filaments with multinucleate cells w.m.

Coelastrum, cell colonies w.m.

Coleochaete, a soil species w.m.

Draparnaldia, main filaments and clusters of branches w.m.

Dysmorphococcus, flagellate algae with shells w.m.

Enteromorpha, seaweed, inflated narrow frond w.m.

Eremosphaera, large unicellular green algae w.m.

Eudorina, spherical colonies of thirty-two cells w.m.

Gonium pectorale, plate-like colonial forms w.m.

Gonium sp., specially stained to show the flagella

Haematococcus, unicellular red biflagellate algae w.m.

Hydrodictyon, water net alga, w.m.

Mixed flagellates, many different species for comparison w.m.

Mixed green algae, many different species for comparison w.m.

Oedogonium, a common filamentous green alga without branches, vegetative filaments w.m.

Oedogonium, macrandrous with oogonia w.m.

Oedogonium, nannandrous with dwarf males w.m.

Pandorina, spherical colonies of sixteen cells or smaller w.m.

Pediastrum, star-shaped flat colonies w.m.

Pithophora, branched tropic green algae w.m.

Platydorina, horseshoe-shaped coenobium showing the flagella w.m.

Pleodorina, colonies with cells of different size w.m.

Pleurococcus (Protococcus), small colonies growing on bark, w.m.

Protosiphon, living on ground, with rhizoids w.m.

Scenedesmus, colonies of four cells w.m.

Stigeoclonium, main filaments and simple branches w.m.

Tetracystis, earth algae, groups of four cells w.m.

Tetraspora, cells in a gelatinous layer w.m.

Ulothrix, simple filaments with girdle-shaped chloroplasts w.m.

Ulva, sea lettuce, a marine green alga, w.m. of thallus

Ulva, w.m. of thallus with developing gametes

Vaucheria geminata, sexual stages on lateral branches w.m.

Vaucheria sessilis, showing sexual stages w.m.

Volvox, flattened and specially stained to show flagella

Volvox, spherical colonies with daughter colonies and sexual stages w.m.

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E. Division Chrysophyta – Golden Algae

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Dinobryon, a golden alga forming colonies w.m.

Hydrurus, golden alga in a gelatinous matrix w.m.

Ochromonas, a flagellate golden alga w.m.

Tribonema, a filamentous golden alga w.m.

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F. Division Charophyta – Stoneworts

BO0501

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BO0506

Chara, stonewort, thallus with reproductive organs w.m.

Chara, thallus and reproductive organs l.s.

Chara, thallus t.s.

Chara, thallus with apex l.s.

Chara, w.m. of mature antheridia showing spermatogenous filaments

Nitella, thallus with reproductive organs w.m.

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G. Division Phaeophyta – Brown Algae

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Ascophyllum nodosum, c.s. of male conceptacle

Dictyopteris, apical region showing more apical cells

Dictyota, thallus with antheridia t.s.

Dictyota, thallus with oogonia t.s.

Dictyota, thallus with tetraspores t.s.

Ectocarpus, plurilocular gametangia or sporangia w.m.

Ectocarpus, unilocular sporangia w.m. +

Elachista fucicola, epiphytic living, w.m. of unilocular sporangia

Fucus platycarpus, hermaphrodite conceptacle with antheridia and oogonia, t.s.

Fucus serratus, female branch with oogonia t.s.

Fucus serratus, male and female branches, two t.s.

Fucus serratus, male branch with antheridia, t.s.

Fucus vesiculosus composite slide, t.s. of male and female conceptacles of a dioecious species on same slide

Fucus vesiculosus, female conceptacle with oogonia t.s.

Fucus vesiculosus, seaweed, male conceptacle with antheridia, t.s.

Fucus, l.s. through apical region with apical cell +

Himanthalia lorea, female conceptacle with oogonia t.s.

Himanthalia lorea, male conceptacle with antheridia t.s.

Laminaria saccharina, thallus with sporangia t.s.

Pylaiella litoralis, uni- and plurilocular sporangia w.m.

Pylaiella litoralis, w.m. showing formation of swarms-cells

Sargassum, gulfweed, thallus with conceptacles t.s.

Sphacelaria sp., thallus with bulbs, w.m.

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H. Rhodophyceae – Red Algae

BO0801

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Audouinella, a mat-forming fresh water red alga, w.m.

Bangia, a ligamentous fresh water red alga, w.m.

Batrachospermum, a fresh water red alga, w.m.

Ceramium, thallus with tetraspores w.m.

Corallina, a marine calcareous red alga w.m.

Dasya, a marine red alga with irregular branchings w.m.

Furcellaria, marine species w.m.

Lemanea, a fresh water red alga with tubular cortical layer w.m.

Nemalion, thallus with reproductive organs w.m.

Polysiphonia (or Rhodomela), female plant with cystocarps w.m.

Polysiphonia (or Rhodomela), marine red alga, male plant with antheridia w.m.

Polysiphonia (or Rhodomela), tetraspores w.m.

Porphyra, marine red alga, w.m. of one cell layer thallus

Porphyridium, gelatinous layer with algal cells, t.s.

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