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.
Phylogenetic systematics, a.k.a. evolutionary trees : Reading trees: A quick review. A phylogeny, or evolutionary tree, represents the evolutionary relationships among a set of organisms or groups of organisms, called taxa (singular: taxon).he tips of the tree represent groups of descendent taxa (often species) and the nodes on the tree represent the common ancestors of those descendants. Two descendents that split from the same node are called sister groups. In the tree below, species A & B are sister groups  they are each other's closest relatives.