n. A natural family of plants comprising the genera
n. a group of chiefly woody plants considered among the most primitive of angiosperms; they have a perianth poorly developed or lacking, and flowers often unisexual and often in catkins and often wind pollinated. The group contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes it is classified as a superorder.
n. A genus of fossil plants of the Oligocene having flowers resembling those of the witch hazel; found in Baltic region.
n. A genus of fossil plants having wood identical with or similar to that of the witch hazel.
n. [ NL., fr. Gr.