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

Encyonema neogracile

Krammer 1997

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

Encyonema lunatum

(W.Sm.) Van Heurck 1880

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

Also compare to

Encyonema pseudogracile

Krammer 1997

Encyonema subgracile

Krammer 1997

Encyonema supergracile

Krammer and Lange-Bert. 1997