What is the rhyme scheme in the following?

Her whole spirit is roomed.

Corniced windows box the day, but
Night is ghastly--unimpeded
Empty--echoing space unanswered
query.

Spiders stick in the crevices;
their thready webs’ gray shadows drag
the plaster for ancient corpses.
Leaves--dead--enter, crumbling.
Why move them?
Thirteen musty tomes--a quill--
Tear washed.

This has no rhyme scheme.