Leaf, compound. Having two to many distinct blades on a common leafstalk or rachis. These blades may be sessile or have leafstalks of their own.
Leaf, pinnately compound. With the leaflets arranged along the sides of the rachis.
Leaf, palmately compound. With leaflets all standing on summit of petiole.
Leaf-cushions. Organs resembling persistent decurrent footstalks, upon which leaves of spruces, etc., stand; sterigmata.
Leaf-scar. The scar left on the twig where the petiole was attached.
Lenticel. Externally appearing upon the bark as spots, warts, and perpendicular or transverse lines.
Linear. Long and narrow with sides nearly parallel.
Monopetalous. Having petals more or less united.
Mucronate. Abruptly tipped with a small, sharp point.
Nerved. Having prominent unbranched ribs or veins.