from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Thriving on or parasitic to leaves.
from The Century Dictionary and Cyclopedia
- Growing upon leaves; parasitic on leaves, as many fungi, or merely attached, as some Hepaticæ and lichens.
Latin folium, leaf; see bhel-3 in Indo-European roots + -colous.(American Heritage® Dictionary of the English Language, Fourth Edition)