from the GNU version of the Collaborative International Dictionary of English
- n. A genus of fossil trees of the Devonian and Carboniferous ages, having the exterior marked with scars, mostly in quincunx order, produced by the separation of the leafstalks.
from The Century Dictionary and Cyclopedia
- n. A common fossil plant of the Carboniferous coal-measures, supposed, in some cases at least, to have furnished an important constituent of the coal itself.
Sorry, no etymologies found.