Those cherries fairly do enclose

Of orient pearls a double row.

Shelley confines his references to pearls almost entirely to descriptions of Nature dew-bedecked, as in the "Revolt of Islam,"

I sate with Cythna; drooping briony, pearled

With dew from the mild streamlet's shattered wave,

and another in "Prometheus Unbound" where the chorus of spirits sing:

Nor aught save where some cloud of dew,

Hangs each a pearl in the pale flowers

Of the green laurel blown anew.