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Familial placement of Cyrtandromoea, Titanotrichum and Sanango , three problematic genera of the Lamiales
Author(s) -
Smith J. F.,
Brown K. D.,
Carroll C. L.,
Denton D. S.
Publication year - 1997
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1224292
Subject(s) - gesneriaceae , biology , scrophulariaceae , tribe , botany , acanthaceae , sociology , anthropology
Summary Smith, J. F., Brown, K. D., Carroll, C. L. & Denton, D. S.: Familial placement of Cyrtandromoea, Titanotrichum and Sanango , three problematic genera of the Lamiales. – Taxon 46: 65‐74. 1997. – ISSN 0040‐0262. Cladistic relationships among Gesneriaceae and related families are investigated using ndh F sequence data, to establish the affinity of three genera whose familial placement was uncertain on the basis of morphological evidence alone. A first analysis, including 18 outgroup species from the Buddlejaceae, Scrophulariaceae, Bignoniaceae , and Acanthaceae resulted in eleven most‐parsimonious trees of 5740 steps each. Recent classifications had placed Cyrtandromoea in Scrophulariaceae or Gesneriaceae, Titanotrichum as a monogeneric tribe in Gesneriaceae , and Sanango in either Scrophulariaceae, Gesneriaceae, Loganiaceae , or Buddlejaceae , Sequence data from the chloroplast ndh F gene indicate that they are Gesneriaceae: Cyrtandromoea belongs to the Klugieae , the monogeneric Titanotricheae are perhaps sister to the remainder of the Cyrtandroideae , and Sanango is placed in the Gesnerieae as was predicted by recent morphological and chemical analyses.