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Gamophyceae: Desmidales: Mesotaeniaceae
(Charophyceae: Zygnematales: Mesotaeniaceae)

Netrium digitus
(Nägeli) Itzigsohn et Rothe var. lamellosum (Brébisson) Grünblad

Species [var. digitus]: Cell body 130-300 μm long, 40-84 μm wide, L/W = 3-4; cell wall smooth.
[var. lamellosum]: Longer than v. digitus, both sides parallel; cell body 140-416 μm long, 32-60 μm wide, L/W = 5-8.
[var. naegelii]: Smaller than v. digitus, both ends broadly rounded; cell body 100-200 μm long, 25-36 μm wide, L/W = 4-5.
[var. rectum]: Larger than v. digitus, tapered to both ends; cell body 300 μm long, 48 μm wide, L/W = 6.3 (Illustrations of The Japanese Fresh-water Algae, 1977).
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N. digitus var. lamellosum, L/W=5-8
Netrium digitus
N. digitus
v. lamellosum
330 x 60 μm
350 x 62 μm
L/W=5.5,5.6
near Akai wetland
Aizuwakamatsu
Fukushima, 2005
Netrium digitus
N. digitus
v. lamellosum
275 x 53 μm
L/W=5.2
Kodanuki marsh
Fujinomiya
Shizuoka, 2005
Netrium digitus
N. digitus
v. lamellosum
254 x 49 μm
L/W=5.2
Kodanuki marsh
Fujinomiya
Shizuoka, 2006
Netrium digitus
N. digitus
v. lamellosum
218 x 42 μm
L/W=5.2
Higashi-sano
Hakuba
Nagano, 2004
Netrium
N. digitus
v. lamellosum
231 x 40 μm
L/W=5.8
Fujimi
Saitama, 1999
Movies
Netrium digitus
N. digitus
v. lamellosum
219 x 40 μm
L/W=5.4
Tochigi, 2000
Netrium digitus
N. digitus
v. lamellosum
163 x 32 μm
L/W=5.1
Omine-numa
Tsukiyono
Gunma, 2003
Netrium digitus
N. digitus
v. lamellosum
216 x 33 μm
L/W=6.5
Omine-numa
Tsukiyono
Gunma, 2007
Netrium digitus
N. digitus
v. lamellosum
μm
L/W=
n. Oyomi marsh
Hakuba
Nagano, 2008
Netrium digitus
N. digitus
v. lamellosum
μm
L/W=
n. Yamakado marsh
Nishi-Azai
Shiga, 2008
Netrium digitus
N. digitus
v. lamellosum
340 x 57 μm
L/W=6.0
Kareki-numa
Nikko
Tochigi, 2008
Netrium digitus
N. digitus
v. lamellosum ?
155 x 34 μm
L/W=4.6
Tashirodaira m.6
Hakkoda mt.
Aomori, 2006

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Netrium digitus
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