Diatoms of North AmericaDiatoms of North America
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Compare Encyonema silesiacum var. elegans

Krammer 1997

Compare

Encyonema silesiacum is broader, less elongate, and has more rounded apices.

Encyonema neogracile is more narrow, with a higher stria density.

Encyonema minutum is smaller in length but more broad, with a nearly straight ventral margin.

Encyonema minutum var. pseudogracilis is much longer in length and greater in width.

Encyonema pergracile has ventral margins that are nearly straight, lacking an expanded or gibbous center.

LM scalebar = 10 µm
Encyonema silesiacum var elegans LM5 Encyonema silesiacum var elegans LM1 Encyonema silesiacum var elegans LM2 Encyonema silesiacum var elegans LM4 Encyonema silesiacum var elegans LM3 Encyonema silesiacum var elegans LM6 Encyonema silesiacum var elegans LM7
Length Range
28-50.5 µm
Width Range
5.8-8.4 µm
Striae in 10 µm
10-12

Encyonema silesiacum

(Bleisch in Rabenh.) D.G.Mann 1990

Encyonema Silesiacum LM1 Encyonema Silesiacum LM2 Encyonema Silesiacum LM3 Encyonema Silesiacum LM5 Encyonema Silesiacum LM6 Encyonema Silesiacum LM7 Encyonema Silesiacum LM8
Length Range
19.6-48.7 µm
Width Range
6.0-10.8 µm
Striae in 10 µm
12-14 at the valve center, 15-17 near the apices

Encyonema neogracile

Krammer 1997

Encyonema neogracile LM1 Encyonema neogracile LM2 Encyonema neogracile LM3 Encyonema neogracile LM4 Encyonema neogracile LM5 Encyonema neogracile LM6
Length Range
18.7-41.3 µm
Width Range
5.5-6.7 µm
Striae in 10 µm
12-15

Encyonema minutum

(Hilse) D.G.Mann 1990

Encyonema minutum LM2 Encyonema minutum LM3 Encyonema minutum LM6 Encyonema minutum LM1 Encyonema minutum LM5 Encyonema minutum LM10 Encyonema minutum LM4
Length Range
19.7-29.1 µm
Width Range
5.8-6.7 µm
Striae in 10 µm
12-13 on ventral side, 13.5-14 on dorsal side

Encyonema minutum var. pseudogracilis

(Cholnoky) Czarn. 1994

Encyonema minutum var pseudogracilis LM6 Encyonema minutum var pseudogracilis LM3 Encyonema minutum var pseudogracilis LM2 Encyonema minutum var pseudogracilis LM4 Encyonema minimum var pseudogracilis LM7 Encyonema minutum var pseudogracilis LM5 Encyonema minutum var pseudogracilis LM1
Length Range
42-60 µm
Width Range
12.3-13.0 µm
Striae in 10 µm
7-9 at mid-valve; up to 11 at the dorsal apex and 13 at the ventral apex

Encyonema pergracile

Krammer 1997

Encyonema pergracile LM1 Encyonema pergracile LM2 Encyonema pergracile LM3 Encyonema pergracile LM4 Encyonema pergracile LM5
Length Range
32-48 µm
Width Range
6.5-7.8 µm
Striae in 10 µm
11-13