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THE TAXONOMIC AFFINITIES OF THE AUSTRALIAN NEOTTIOIDEAE
Author(s) -
Lavarack P. S.
Publication year - 1976
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1219457
Subject(s) - affinities , taxon , subfamily , classification scheme , biology , cosmopolitan distribution , taxonomy (biology) , numerical taxonomy , group (periodic table) , geography , evolutionary biology , zoology , botany , genetics , biochemistry , information retrieval , computer science , gene , chemistry , organic chemistry
Summary The taxonomic affinities of the Neottioideae (Orchidaceae) and, in particular, of its Australian members, have been examined, employing numerical taxonomic methods. Two analyses were carried out ‐ the first, discussed only briefly, involved a sample of the entire family and the second a sample of the Neottioideae as defined by the first analysis. The analyses were carried out by the Euclidean‐based Group Average (or Mean Squared Distance) strategy and checked by means of a Principal Co‐ordinate Analysis. The analysis of the Neottioideae indicated that this subfamily comprised two groups ‐ Diurideae, including the tuber‐forming Australian taxa and the Neottieae which do not possess tubers and are cosmopolitan in distribution. A possible scheme of classification of the Neottioideae is presented and relationships within the group are briefly discussed.