Compare

Encyonema minutum has smaller valves and higher stria density. Encyonema minutum var. pseudogracilis has larger valves, with lower stria density. Encyonema procerum has less strongly arched dorsal margins, a larger length to width ratio, shorter ventral striae and lower stria density.

LM scalebar = 10 µm
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 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 procerum

Krammer 1997

Encyonema procerum LM6 Encyonema procerum LM Encyonema procerum LM5 Encyonema procerum LM2 Encyonema procerum LM3 Encyonema procerum LM4
Length Range
20.6-36.0 µm
Width Range
5.6-8.3 µm
Striae in 10 µm
8-11 dorsal; 11-13 ventral

Also compare to

Encyonema minutum

(Hilse) D.G.Mann

BioData Reference
Krammer 1997 T1 Pl 6 Fig 19-27 Pl 25 Fig 1-10