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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Netrium digitus var. lamellosum (Brébisson) Grünblad,
cell body 254 μm long, 49 μm wide, L/W=5.2,
x 400, x 640, Kodanuki marsh, Fujinomiya city, Shizuoka Pref., Japan, April 29, 2006 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Netrium digitus (soon after cell division ?),
cell body 232 μm long, 56 μm wide, L/W=4.1,
x 400, x 640, Kodanuki marsh, Fujinomiya city, Shizuoka Pref., Japan, April 29, 2006 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
Kodanuki marsh, Fujinomiya city, Shizuoka Pref., Japan, April 29, 2006 by Y. Tsukii
Please click on images for viewing enlarged.
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