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Arcyria cinerea       Grey Arcyria

This species is fairly common in eastern regions and the fruitbodies (sporangia) are produced in scattered groups (sometimes hundreds) over the surface of rotting logs. The grey sporangia are only a few millimetres tall and you need a hand lens (5X - 10X) to see the details of their structure. In some strains of this species the stalks fuse in bundles to give a many-headed fruitbody. The sporangia are slightly tapered towards the apex. This tapering is more pronounced in the "fascicled" strain  (click here).