A new classification of the tribe Veroniceae-problems and a possible solution

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Xylem heterochrony: an unappreciated key to angiosperm origin and diversifications. (2009, unknown): “(Albach et al., 2004) have rayless wood (Meylan & Butterfield, 1978).”
Review of the systematics of Scrophulariaceae s.l. and their current disposition (2006, background): “…out of Veronica (Besseya, Chionohebe, Cochlidiosperma, Derwentia, Hebe, Hebejeebie, Heliohebe, Leonohebe, Oligospermum, Parahebe, Paederota, Pseudolysimachion, Synthyris and Veronicastrum) and on circumscription of generic boundaries for the rest of the genera (summarised in Albach et al. 2004b).”
An update of the angiosperm phylogeny group classification for the orders and families of flowering plants : APGII (2003, background): “Backlund & Bremer (1998) provided a useful discussion on the principles of rank-based phylogenetic classification that is applicable at all levels apart from species and immediately above (see Albach et al., 2004; Entwisle & Weston, 2005; Pfeil & Crisp, 2005, etc., for examples).”