New Zealand Journal of Botany abstracts
Molecular generic classification of the Hypopterygiaceae (Bryopsida), with the description of a new genus, Arbusculohypopterygium gen. nov. Studies in austral temperate rain forest bryophytes 10
Michael Stech
Tanja Pfeiffer
Wolfgang Frey
Freie Universität Berlin, Institut für Biologie
- Systematische Botanik und Pflanzengeographie -
Altensteinstraβe 6
D-14195 Berlin, Germany
Abstract Generic relationships within the Hypopterygiaceae were examined by maximum parsimony and neighbor joining analyses of 22 cpDNA trnLUAA intron sequences of 13 species from all 7 genera and 11 nrDNA ITS2 sequences of 8 species from 5 genera. In the cpDNA trees, the branches of Lopidium, of Cyathophorum, and of Canalohypopterygium tamariscinum/Catharomnion ciliatum are supported by high bootstrap values. A separation of Cyathophorum and Dendrocyathophorum into subfamily Cyathophoroideae is not supported. All investigated Hypopterygium specimens (H. didictyon, H. discolor, H. flavolimbatum, and H. tamarisci) form one clade together with the New Zealand endemic Dendrohypopterygium filiculiforme, whereas the southern South American endemic Dendrohypopterygium arbuscula is separated from this clade. In ITS2 trees and combined trnL/ITS2 trees, high bootstrap support is achieved for the Hypopterygium clade, whereas D. arbuscula appears related to Dendrocyathophorum with moderate bootstrap support. As a consequence of the paraphyly of Dendrohypopterygium, a new genus, Arbusculohypopterygium gen. nov., is established to accommodate D. arbuscula.
Keywords Hypopterygiaceae; molecular systematics; trnLUAA intron; ITS2; Arbusculohypopterygium gen. nov.
B01008 Received 2 April 2001; accepted 3 April 2002
New Zealand Journal of Botany, 2002, Vol. 40: 207–221
0028–825X/02/4002–0207 $7.00 © The Royal Society of New Zealand 2002
PDF file of entire paper: Print-quality (666K)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
