A Guide to Selected Genera of the British Desmids

Click on genus name for description.
Scale information is given below each image as equivalent width of the image in Ám.

Genus Euastrum
Euastrum insigne

85 Ám
Euastrum humerosum

109 Ám
Euastrum bidentatum

49 Ám

Genus Micrasterias
Micrasterias jenneri

152 Ám
Micrasterias denticulata

243 Ám
Micrasterias crux-melitensis

121 Ám

Genus Cosmarium
Cosmarium obtusatum

64 Ám
Cosmarium botrytis

78 Ám
Cosmarium depressum

57 Ám

Genus Staurastrum
Staurastrum sexangulare var. supernumerarium

116 Ám
Staurastrum paradoxum var. cingulum

91 Ám
Staurastrum gladiosum


54 Ám

Genus Xanthidium
Xanthidium subhastiferum

95 Ám
Xanthidium antilopeum

99 Ám
Xanthidium cristatum

85 Ám

Genus Staurodesmus
Staurodesmus controversus

37 Ám
Staurodesmus bulnheimii

69 Ám
Staurodesmus incus

36 Ám

Genus Tetmemorus
Tetmemorus brebissonii

232 Ám
Tetmemorus granulatus

198 Ám

Genus Closterium
Closterium setaceum

345 Ám
Closterium costatum

444 Ám
Closterium lunula

695 Ám

Genus Penium
Penium margaritaceum

156 Ám
Penium cucurbitinum

82 Ám

Genus Gonatozygon
Gonatozygon monotaenium

326 Ám
Gonatozygon brebissonii

132 Ám
Gonatozygon kinahani

177 Ám

Genus Pleurotaenium
Pleurotaenium trabecula

250 Ám
Pleurotaenium tridentulum

96 Ám

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