Search results
Results from the WOW.Com Content Network
In biology, an identification key, taxonomic key, or frequently just key, is a printed or computer-aided device that aids in the identification of biological organisms. Historically, the most common type of identification key is the dichotomous key , a type of single-access key which offers a fixed sequence of identification steps, each with ...
In phylogenetics, a single-access key (also called dichotomous key, sequential key, analytical key, [1] or pathway key) is an identification key where the sequence and structure of identification steps is fixed by the author of the key. At each point in the decision process, multiple alternatives are offered, each leading to a result or a ...
In a terminal reticulation a single taxon or next-level-key is keyed out in several locations in the key. This type of reticulation is normally compatible with any printable presentation format of identification keys and normally does not require special precautions in software used for branching keys.
A branching identification key within taxonomy (the practice and science of categorization or classification), is a presentation form of a single-access key where the structure of the decision tree is displayed graphically as a branching structure, involving lines between items. [1]
The need to identify which plant is which has existed for time immemorial. The ability depends to a large extent on what criteria and whose system is used. Determination now relies on modern taxonomy to define the identify of organisms. Taxonomy is the branch of biology which deals with identity, nomenclature and classification.
Dendrology (Ancient Greek: δένδρον, dendron, "tree"; and Ancient Greek: -λογία, -logia, science of or study of) or xylology (Ancient Greek: ξύλον, ksulon, "wood") is the science and study of woody plants (trees, shrubs, and lianas), specifically, their taxonomic classifications. [1]
%PDF-1.4 %âãÏÓ 4 0 obj > endobj xref 4 10 0000000016 00000 n 0000000644 00000 n 0000000704 00000 n 0000001044 00000 n 0000001139 00000 n 0000587761 00000 n 0000587976 00000 n 0001544961 00000 n 0001549018 00000 n 0000000496 00000 n trailer ]/Prev 1562693>> startxref 0 %%EOF 13 0 obj >stream hÞb```g``Òa`` _PÀ X 8 xìPÌÀ Ï ÂÀ ...
Tree: The full input Newick Format for a single tree Subtree: an internal node (and its descendants) or a leaf node Leaf: a node with no descendants Internal: a node and its one or more descendants BranchSet: a set of one or more Branches Branch: a tree edge and its descendant subtree. Name: the name of a node Length: the length of a tree edge.