geophilous

from The Century Dictionary.

• Loving the ground: specifically applied to sundry animals, especially the Geophila or land-snails.
• In botany Terrestrial; growing or rooting in the ground.
• In phytogeography, growing on the ground or on decaying vegetable matter: applied by Pound and Clements to a class of fungi.
• Fruiting underground.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Loving the ground: specifically applied to sundry animals, especially the Geophila or land-snails.
• adjective botany Terrestrial; growing or rooting in the ground.
• adjective growing on the ground or on decaying vegetable matter: applied by Pound and Clements to a class of fungi.
• adjective Fruiting underground.