Reference comment Common; on ''[[Pinus contorta]]'', especially lower surfaces of branches in open ''P. contorta'' peatlands. Also on ''Thuja plicata'', ''[[Picea sitchensis]]'', ''[[Tsuga heterophylla]]''. Pacific Northwest endemic.
From Natural History of Southeast Alaska
A list of all pages that have property "Reference comment" with value "Common; on ''[[Pinus contorta]]'', especially lower surfaces of branches in open ''P. contorta'' peatlands. Also on ''Thuja plicata'', ''[[Picea sitchensis]]'', ''[[Tsuga heterophylla]]''. Pacific Northwest endemic."
