Echinosphaeridium is a genus of green algae in the family Neochloridaceae. It is found in freshwater habitats, but it is very rare. It has only been recorded a few times since its original discovery in Sweden.
GENUS
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Echinosphaeridium is a genus of green algae in the family Neochloridaceae. It is found in freshwater habitats, but it is very rare. It has only been recorded a few times since its original discovery in Sweden.
==Description== Echinosphaeridium consists of solitary, spherical cells surrounded by thin spines. The spines are surrounded by a triangular structure at the base, which consist of three "wings" similar in form to the fletchings on arrows. Unlike the related genus Golenkinia, cells are not surrounded by a layer of mucilage. One chloroplast is present per cell, containing a pyrenoid.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).