spherical/elliptical
mucilage sheaths |
|
(a)
with flagella or pseudocilia |
|
|
|
(i)
pseudocilia
(non-motile hair-like appendages) |
|
|
|
Apiocystis brauniana
FAFBI
p. 299 plate 76
|
Cells
around the periphery of a sac-like mucilaginous envelope, attached at
one end. Pseudocilia project through the mucilage |
|
|
Tetraspora
FAFBI p. 303 plate
76
|
|
|
|
|
(ii)
flagella: motile appendages which make the colony
motile |
|
|
|
Eudorina
FAFBI
p. 317 plate 81
|
each
cell has a pair of flagella; cells spaced out from each other |
|
|
|
Pandorina
FAFBI
p. 320 plate 81
|
each
cell has a pair of flagella; cells tightly packed together; angular from
mutual compression |
(Lugol's) |
|
|
(b)
without flagella or pseudocilia |
|
|
|
(i)
Cyanobacteria: cells with chlorophyll not enclosed in a chloroplast
(not always easy to see) |
Coelosphaerium
FAFBI
p.42 plate 5
|
Colony
spherical or subspherical, the cells grouped around the outside forming
a hollow ball |
|
|
Woronichinia
FAFBI
p.58 plate 5
|
Similar to Coelosphaerium
but cells are somewhat elongate, at the end of radiating stalks
|
|
|
Snowella
FAFBI
p.56 plate 4
|
|
|
|
|
Chroococcus
FAFBI
p.40 plate 3
|
Cells in pairs or multiples of 2, somewhat flattened where the cells are in close contact (sometimes with concentrically striated mucilage). |
|
|
|
|
|
C. limneticus |
|
Eucapsis
FAFBI
p.45 plate 5
|
Cells
in groups of multiples of 4 in more or less cubical arrangement |
|
|
Merismopedia
FAFBI
p.51 plate 3
|
Cells
in groups of 4 or multiples of 4, forming a flat (or sometimes rolled)
plate. |
|
|
Nostoc
FAFBI
p.105 plate 18
|
Clusters
of filaments in a firm mucilaginous envelope. The cells are spherical
with occasional heterocysts (rather similar to Anabaena) |
|
|
|
|
|
|
|
(ii)
cells with chloroplasts, in groups within a concentrically layered mucilage |
|
?Gloeocystis
FAFBI p. 356 plate
86
|
|
|
|
|
|
|
|
|
|
Asterococcus
FAFBI
p.299 plate 76
|
Cells
spherical or subspherical, with stellate chloroplast. Mucilage envelope
wider than cell.
|
|
|
|
|
|
|
|
|
Non-lamellate mucilage,
cells 10-25µm =
A. limneticus |
|
|
|
Lamellate mucilage, cells 30-43µm =
A. superbus
|
|
|
|
|
|
|
|
|
|
|
|
|
?Oonephris
FAFBI p.375 plate
92
|
|
|
|
|
Schizochlamydella
FAFBI
p.398 plate 86
|
|
|
|
|
Westella
FAFBI
p.408 plate 84
|
|
|
|
|
?Oocystis
FAFBI
p.372 plate 92
|
|
|
|
|
?Oocystis borgei
|
|
|
|
|
?Coenococcus
polycoccus
FAFBI
p. 343 plate 86
|
|
|
|
|
|
|
|
|
|
?Nephrocytium
limneticum
FAFBI
p.371 plate 83
|
|
|
|
|
?Coelastrum
sphaericum
FAFBI
p.342 plate 83
|
|
|
|
|
Unknown
species to match |
|
|
|
|
|
|
|
|
|
?Chlamydocapsa
FAFBI
p.300: dubious genus, not illustrated (may be identical to Chlamydomonas
palmelloid stage)
|
|
|
|
|
Chlamydomonas
palmelloid stage
FAFBI p.308 plate 77
|
|
|
|
|
?Coenocystis
obtusa
FAFBI
p.343 plate 86
|
|
|
|
|
Sphaerocystis
FAFBI
p.402 plate 86
|
|
|
|
|
?Sphaerocystis
FAFBI
p.402 plate 99
|
|
|
|
|
Cosmocladium
saxonicum
FAFBI
p.550 plate 143
|
|
|
|
|
Glaucocystis
FAFBI
p.613 plate 1
|
|
|
|
|
?Dichotomococcus
FAFBI
p.347 plate 84
|
|
|
|
|
?Tetrastrum
FAFBI
p.406 plate 94
|
|
|
|
|
Crucigenia
FAFBI
p.344 plate 84
|
|
|
|
|
Crucigeniella
FAFBI p.406 plate 84
|
|
|
|
|
Quadrigula
closterioides
FAFBI
p.382 plate 98
|
|
|
|
|
?Rayssiella
Not present in FAFBI;
ID from Prescott
|
|
|
|
|
|
|
|
|
|
?Palmodictyon
FAFBI
p.375 plate 99
|
colonial
Chlorophyte: spherical cells in branching tubes of mucilage, with cup-shaped
chloroplast |
|
|
|
?Paulschulzia
FAFBI
p.300 plate 76
|
colonial
Chlorophyte:cells/cell groups in clearly defined spherical mucilage envelope,
with individual sheaths and flagellum extending beyond outer envelope |
|
|
|
?Phaeosphaeria
FAFBI
p.234 plate 62
|
|
|
|
|
?Radiococcus
FAFBI
p.383 plate 86
|
|
|
|
|
Sheath
not spherical |
|
|
|
|
Raphidocelis
(Kirchneriella)
FAFBI
p.383 plates 83, 98
|
|
|
|
|
Schizochlamydella
FAFBI
p.398 plate 86
|
|
|
|
|
Westella
FAFBI
p.408 plate 84
|
|
|
|
|
|
|
|
|
|
Mesotaenium
FAFBI
p.511 plate 128
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|