Which preposition to use with mosse

as Occurrences 1%

160 [* Batt, stick] Then gan the shepheard gather into one His stragling goates, and drave them to a foord, Whose caerule streame, rombling in pible stone, Crept under mosse as greene as any goord.

with Occurrences 1%

An old oak whose boughs are mossed with age, And high top bald with dry antiquity.

Which preposition to use with  mosse