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Specimens are grouped into orders following Guiry and Guiry (2019) and Wehr et al. (2015).

Zygnematales

The unicellular forms of Zygnematales are known as saccoderm desmids (Graham et al. 2009).

Cylindrocystis

1. Cylindrocystis
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Rice Lake marsh #2
aquatic plant sample
8/7/10
pH 7.4, 21°C, 80 uS
2. Cylindrocystis
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Perrault Bog
plant detritus sample
9/13/05
pH 5.1, 22.2°C

Mesotaenium

1. Mesotaenium
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Rice Lake from northern shore
aquatic plant sample
9/27/05
20°C
2. Mesotaenium
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Perrault Bog
surface plankton tow
6/19/07
19.5°C

Mougeotia

1. Mougeotia
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Traverse River at Mohawk-Gay Rd
aquatic plant sample
9/27/05
19.5°C
2. Mougeotia
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same as above
3. Mougeotia
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Arnheim Sloughs site #2
aquatic plant sample
5/27/10
22°C
4. Mougeotia
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pond east of Huron Lake
aquatic plant sample
10/16/07
5. Mougeotia
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Snowmobile Trail 17 marsh #3
aquatic plant sample
7/15/10
pH 7.6, 25°C, 58 uS
6. Mougeotia
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Osceola pond #1
aquatic plant sample
10/25/07
9°C
7. Mougeotia
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Mohawk-Gay Rd marsh
floating algal mass
5/20/10
18°C

Netrium

1. Netrium digitus
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Perrault Bog
plant detritus sample
8/5/10
pH 6.0, 23°C, 34 uS
2. Netrium digitus
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same as above
3. Netrium
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Perrault Bog
floating algal mass
6/17/10
pH 5.0, 23°C, 41 uS
4. Netrium oblongum
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Perrault Bog
plant detritus sample
10/11/05
11.5°C
5. Netrium oblongum
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Perrault Bog
plant detritus sample
6/19/07
19.5°C
6. Netrium
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Perrault Bog
plant detritus sample
10/23/07

Spirogyra

1. Spirogyra
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pond east of Huron Lake
aquatic plant sample
10/16/07
2. Spirogyra
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Pike Bay from dock
aquatic plant sample
10/20/05
11.5°C
3. Spirogyra
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Nara Trail marsh
plant detritus sample
9/15/05
14°C
4. Spirogyra
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Moyle Concrete pond
macro-algae attached to sediment
8/5/10
pH 9.4, 23°C, 483 uS
5. Spirogyra
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old Laurium dump pond
plankton tow
7/1/10
pH 7.0, 17°C, 115 uS
6. Spirogyra
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Copper City, Trail 3 pond #1
plant detritus sample
7/21/10
pH 7.9, 27°C, 33 uS
7. Spirogyra (conjugation)
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Dollar bay at marina
macro-algae sample
8/12/10
pH 8.4, 26°C, 130 uS
8. Spirogyra (conjugation)
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Gratiot River, riffle below falls
filamentous algae sample
8/8/03

Spirotaenia

1. Spirotaenia condensata
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Rice Lake from northern shore
surface plankton tow
9/27/05
20°C
2. Spirotaenia condensata
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same as above

Zygnema

1. Zygnema
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Osceola pond #1, adjoining marsh
aquatic plant sample
10/11/05
10°C
2. Zygnema
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Arnheim Sloughs site #4
aquatic plant sample
5/27/10
24°C
3. Zygnema
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Twelve Mile Lake
plankton tow
10/23/07
4. Zygnema
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MTU settling pond
aquatic plant sample
10/16/05
11°C
5. Zygnema
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Osceola pond #1
aquatic plant sample
10/25/07
9°C

Zygnemopsis

1. Zygnemopsis
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Dollar Bay at entrance
surface plankton tow
10/10/01
pH 7.5,15°C