cespitose

The stem is subequal, cespitose, reticulate to the base, pulverulent below.

Cspitose, or Cespitose, growing in turf-like patches or tufts.

Sporangia densely crowded or cespitose, sub-sessile or short stipitate, clavate, 1–1.5 mm.

I have never seen it cespitose, never more than two specimens growing near each other.