Encyonema silesiacum is broader, less elongate, and has more rounded apices.
Encyonema neogracile is more narrow, with a higher stria density.
Encyonema minutum is smaller in length but more broad, with a nearly straight ventral margin.
Encyonema minutum var. pseudogracilis is much longer in length and greater in width.
Encyonema pergracile has ventral margins that are nearly straight, lacking an expanded or gibbous center.
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