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THE DUAL POLYCLAVE: AN AID TO MORE EFFICIENT IDENTIFICATION
Author(s) -
PAYNE R.W.,
LAMACRAFT R. R.,
WHITE R. P.
Publication year - 1981
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1981.tb01696.x
Subject(s) - character (mathematics) , identification (biology) , dual (grammatical number) , dual purpose , computer science , computational biology , biology , mathematics , ecology , linguistics , engineering , philosophy , mechanical engineering , geometry
SUMMARY Polyclaves have advantages over conventional aids to identification in that the user is free to examine any convenient character. However the polyclave gives no guidance about the best character to examine next during an identification. This deficiency can be overcome by using a dual polyclave which indicates how each character separates the taxa not eliminated by characters already observed.