3 definitions found From The Collaborative International Dictionary of English v.0.48 [gcide]: Hamamelidae \Hamamelidae\ 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. Syn: subclass Hamamelidae. [WordNet 1.5] From The Collaborative International Dictionary of English v.0.48 [gcide]: Dicotyledonae \Dicotyledonae\ n. (Bot.) a class of plants comprising those seed plants that produce an embryo with two cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): {Magnoliidae} and {Hamamelidae} (considered primitive); {Caryophyllidae} (an early and distinctive offshoot); and three more or less advanced groups: {Dilleniidae}; {Rosidae}; {Asteridae}. Syn: Dicotyledones, class Dicotyledones, class Dicotyledonae, Magnoliopsida, class Magnoliopsida. [WordNet 1.5] From WordNet (r) 2.0 [wn]: Hamamelidae n : a group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorder [syn: {subclass Hamamelidae}]
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