from The Century Dictionary and Cyclopedia
- n. In botany, same as resin-passage.
Sorry, no etymologies found.
There are, moreover, new forms of leaf-hypoderm and a new position of the resin-duct.
In tangential section the medullary rays appear in two forms, linear, without a resin-duct, and fusiform, with a central resin-duct.
All the species are of the Western Hemisphere, and among them may be found the biform hypoderm of the leaf, the internal resin-duct, and the total absence of external resin-ducts, characters common in