Most elaborate of the Greek architectural styles and least used by the Greeks. Resembles Ionic in most aspects except for the column capital; Corinthian columns have tall capitals shaped like an upside-down bell and are covered with rows of acanthus leaves and small vine like spirals called helixes.
Branching tree. Definition. noun. A branching identification key where the structure of the decision tree is displayed graphically as a branching structure, involving lines between items. Supplement. Depending on the number of branches at a single point, a branching key may be dichotomous or polytomous.
A phylogenetic tree or evolutionary tree is a branching diagram or  tree  showing the inferred evolutionary relationships among various biological species or other entitiesâtheir phylogeny âbased upon similarities and differences in their physical or genetic characteristics. A Dahlgrenogram is a diagram representing a cross section of a phylogenetic tree. 2  A phylogenetic network is not strictly speaking a tree, but rather a more general graph, or a directed acyclic graph in the case of rooted networks.