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| Spores generally > 80 µm diam. | Spores generally < 80 µm diam. |
Accessions in pot cultures of Glomus spurcum fall into two size categories as described in the table above. Despite this consistent difference, spore subcellular structure is indistinguishable between the two groups (see photos in table below). For the time being, both groups are grouped as one species.
Spores
in PVLG and Melzer's reagent