Diatoms of North AmericaDiatoms of North America
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Compare Encyonema lange-bertalotii

Krammer 1997

Compare

Encyonema obscurum has narrower valves and subrostrate apices that are not bent to the ventral side.

Encyonema silesiacum has a larger size range and apices are not protracted.

LM scalebar = 10 µm
Encyonema lange-bertalotii LM1 Encyonema lange-bertalotii LM2 Encyonema lange-bertalotii LM3 Encyonema lange-bertalotii LM4 Encyonema lange-bertalotii LM5 Encyonema lange-bertalotii LM6
Length Range
17.6-31.7 µm
Width Range
6.6-8.3 µm
Striae in 10 µm
14-16

Encyonema obscurum

(Krasske) D.G.Mann 1990

Encyonema Obscurum 1 Encyonema Obscurum 2 Encyonema Obscurum 3 Encyonema Obscurum 4 Encyonema Obscurum 5 Encyonema Obscurum 6 Encyonema Obscurum 7
Length Range
17.8-28.0 µm
Width Range
6.4-7.5 µm
Striae in 10 µm
12-16

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

Also compare to

Encyonema latecapitatum

Krammer

Encyonema brevicapitatum

Krammer

Encyonema ventricosum

(Agardh) Grunow in A.Schmidt et al.

BioData Reference
Hofmann et al. 2013 Taf 87 Fig 18-22

Encyonema minutum

(Hilse) D.G.Mann

Encyonema latecapitatum

Krammer

Encyonema brevicapitatum

Krammer