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Compare Encyonema kamtschaticum var. parvum

Krammer 1997

Compare

Encyonema silesiacum, and other species in the E. silesiacum group, have a central stigmoid.

Encyonema kamtschaticum is larger, has wider apices, a wider axial area, and wider central area. The ventral margin is convex.

Encyonema nicafei, E. yellowstonianum, E. reimeri, E. temperei

Encyonema minutum var. pseudogracilis is similar in length, but has wider valves and a stigmoid.

Encyonema lange-bertalotii is smaller.

LM scalebar = 10 µm
Encyonema kamtschaticum parvum LM1 Encyonema kamtschaticum parvum LM2 Encyonema kamtschaticum parvum LM3 Encyonema kamtschaticum parvum LM4 Encyonema kamtschaticum parvum LM5 Encyonema kamtschaticum parvum LM6 Encyonema kamtschaticum parvum LM7
Length Range
23.3-55.7 µm
Width Range
7.9-12.7 µm
Striae in 10 µm
11-14 dorsal at valve center; 12-15 dorsal at valve apices; 9-11 ventral at valve center; 12-16 ventral at valve apices

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 nicafei

S.A.Spauld. 2010

Encyonema nicafei LM1 Encyonema nicafei LM2 Encyonema nicafei LM3 Encyonema nicafei LM4 Encyonema nicafei LM5 Encyonema nicafei LM6
Length Range
56-76 µm
Width Range
16.5-19 µm
Striae in 10 µm
9

Encyonema yellowstonianum

Krammer 1997

Encyonema yellowstonianum LM2 Encyonema yellowstonianum LM3 Encyonema yellowstonianum LM1
Length Range
39-75 µm
Width Range
17-23 µm
Striae in 10 µm
10-11

Encyonema sinicum

Krammer 1997

Encyonema sinicum LM1 Encyonema sinicum LM2 Encyonema sinicum LM3 Encyonema sinicum LM4 Encyonema sinicum LM5
Length Range
31.6-84.8 µm
Width Range
13.6-22.6 µm
Striae in 10 µm
10-12 dorsal at valve center; 11-12 dorsal at valve apices; 8-10 ventral at valve center; 10-14 ventral at valve 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 reimeri

S.A.Spauld., Pool and S.Castro 2010

Encyonema reimeri LM1 Encyonema reimeri LM2 Encyonema reimeri LM3 Encyonema reimeri LM4 Encyonema reimeri LM5
Length Range
30-89 µm
Width Range
16-26.5 µm
Striae in 10 µm
10

Encyonema temperei

Krammer 1997

Encyonema temperei LM1 Encyonema temperei LM2 Encyonema temperei LM3 Encyonema temperei LM4 Encyonema temperei LM5 Encyonema temperei LM6
Length Range
39-78 µm
Width Range
19-25 µm
Striae in 10 µm
11-12

Encyonema lange-bertalotii

Krammer 1997

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

Also compare to

Encyonema kamtschaticum

Krammer

Encyonema silesiacum var. lata

BioData Reference
Krammer 1997 Pl 12 Fig 11-14