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Pontechium : a new genus distinct from Echium and Lobostemon ( Boraginaceae )
Author(s) -
Hilger Hartmut H.,
Böhle UtaRegina
Publication year - 2000
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1223974
Subject(s) - boraginaceae , biology , genus , botany , taxon , phylogenetic tree , genetics , gene
Summary Hilger , H. H. & Böhle, U.‐R.: Pontechium : a new genus distinct from Echium and Lobostemon ( Boraginaceae ). – Taxon 49: 737–746. 2000. – ISSN 0040‐0262. The phylogenetic relationships of Echium, Lobostemon , and Echiostachys ( Boraginaceae‐Lithospermeae ) were inferred from DNA sequence variation. The presence of a bicapitate rather than a bifid stigma and plastid trnL (UAA) , intron, trnL (UAA) ‐trnF (UAA) spacer and nuclear (ITS1) DNA sequence analyses confirm an isolated position for Echium maculatum L. and recommend exclusion from the genus Echium ( Boraginaceae ) as a new genus: Pontechium.