Diatoms of North AmericaDiatoms of North America
Return to overview

Compare Encyonema pergracile

Krammer 1997

Compare

Encyonema lunatum is smaller in both length and width, and has broadly rounded ends. Encyonema neogracile is very similar, but is more narrow and smaller in length. Encyonema pseudogracile has a relatively broad axial area. Encyonema supergracile is the largest (length 54-74 µm, width 8.5-10.6 µm) of the E. gracile complex and was described from Columbia. Encyonema subgracile is smaller than E. pergracile, lacks a stigma and was described from Australia.

LM scalebar = 10 µm
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

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 lunatum

(W.Sm.) Van Heurck 1880

Encyonema lunatum LM1 Encyonema lunatum LM2 Encyonema lunatum LM3 Encyonema lunatum LM4 Encyonema lunatum LM5 Encyonema lunatum LM6
Length Range
27.3-40.7 µm
Width Range
4.3-5.3 µm
Striae in 10 µm
9-14

Also compare to

Encyonema pseudogracile

Krammer 1997

Encyonema subgracile

Krammer 1997

Encyonema supergracile

Krammer and Lange-Bert. 1997