The Hen. The Lichen.
Reading edition
Lichens, regardless of conventions, Exist in only two dimensions, A life restricted to a plane, On rocks and stones a greenish stain, They live upon the simplest fare, A drop of dew, a breath of air. Contrast them with the greedy Hen, And her most careless regimen, She shuns the barren stones and rocks, And thrives upon the garbage box.