Chlorophyceae

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Pediastrum granulatum.

Portrait of Lobomonas stellata (Chodat), a volvocid flagellate. The ellipsoid to pear-shaped protoplast is separated from the cell wall by a space containing gelatinous material. The cell wall has irregularly spaced conical protrusions. There is one large cup-shaped chloroplast. A pyrenoid is located posteriorly. A peripheral stigma is located in the anterior 1/3 of the cell. Two equal flagella are about the length of the cell body. From freshwater pond near Boise, Idaho. Phase contrast.

Tetraspora (tet-ra-spore-a), a volvocalean green alga in which the cells are located within a mucus matrix. Like Chlamydomonas, there are two apical flagella inserting into an ovate cell, anterior contractile vacuoles, and there is a single large cup-shaped chloroplast. Phase contrast.

Chlamydomonas (clam-ee-doe-moan-ass) a common volvocid (green alga) flagellate. Cells vary in shape from elongate to rounded, this being one of the more elongate cells. With a cell wall, a cup-shaped chloroplasts with chlorophyll B, a red eyespot located external to the plastid, and two equal flagella emerging from the anterior pole of the cell. Differential interference contrast. Animations by Rosemary Arbur of flagellar beat patterns are available here. Material from Nymph Creek and Nymph Lake, thermal sites within Yellowstone Park, photograph by Kathy Sheehan and David Patterson.

Portrait of Vitreochlamys fluviatilis, formerly Sphaerellopsis fluviatilis. The genus name, Sphaerellopsis (Korchikoff, 1925) was preoccupied by an Ascomycete fungus. This fungus Sphaerellopsis filum (Cooke, 1883) is a hyperparasite of another fungus, willow rust (Melampsora). Batko renamed this volvocid flagellate genus Vitreochlamys. This genus is similar to Chlamydomonas (some consider it synonymous) but differs from it by having a protoplast and surrounding gelatinous sheath that are fusiform. There are two equal length flagella. The nucleus is central. There is a large cup-shaped chloroplast and a posterior pyrenoid. Two anterior contractile vacuoles are located near the flagellar bases. There is a small anterior stigma. From a freshwater pond near Boise, Idaho. Oblique illumination. 

In vivo portrait of the volvocid flagellate,  Volvulina steinii Playfair,1915. Collected from a temporary rainwater puddle on a grass lawn in Boise, Idaho 43°36'49.03" N 116° 13' 23.77" W elev. 2674 ft.March 2006.Brightfield.

Colony in interlaced sheaths of mucilage. Scale bar indicates 25 µm.  Sample from sphagnum pond situated in the northern alpine region of Austria near Salzburg. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.

Portrait of the chlorellacean Tetraedron minimum var. minimum (A. Braun) Hansgirg. DIC. 

Vanserum, Öland, Sverige

..

Fusola viridis; Oocystia borgei; Chordatella citriformis; Pleurococcus regularis Artari.

Scale bar indicates 25 µm. Sample from a pond called Fuhlensee in Schilksee (Kiel). Sampling date 2/2017. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Lake Fuhlensee near Schilksee (Kiel, Germany) Latitude: 54,43136338 Longitude: 10,16243935 Der Messbalken markiert eine Länge von 25 µm. Probe aus dem Feuchtbiotop Fuhlensee bei Schilksee/Kiel. Datum der Aufsammlung: 2/2017. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Scale bar indicates 25 µm. Sample from a pond called Fuhlensee in Schilksee (Kiel). Sampling date 2/2017. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Lake Fuhlensee near Schilksee (Kiel, Germany) Latitude: 54,43136338 Longitude: 10,16243935 Der Messbalken markiert eine Länge von 25 µm. Probe aus dem Feuchtbiotop Fuhlensee bei Schilksee/Kiel. Datum der Aufsammlung: 2/2017. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Scale bar indicates 25 µm. Sample from wetlands called Hegne Moor situated in the vicinity of Konstanz (Baden-Wuerttemberg, Germany). Sampling date 9/2011. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Standard with Olympus C7070 CCD camera. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Bog Hegne Moor near Lake Constance (Germany) Latitude: 47,718106 Longitude: 9,093974 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm. Probe aus dem Feuchtbiotop Hegne Moor bei Konstanz. Datum der Aufsammlung: 9/2011. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus C7070. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Melgar de Tera, Castille and Leon, Spain

Malgrat de Mar, Catalonia, Spain

Ribadelago, Castille and Leon, Spain

Villoslada de Cameros, La Rioja, Spain

Los Cotos, Madrid, Spain

Madrid, Madrid, Spain

Melgar de Tera, Castille and Leon, Spain

Scale bar indicates 25 m.Sample from the pond Hegne Moor situated in the vicinity of Lake Constance. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Lardero, La Rioja, Spain