Phylum Pteridophyta (classification modified)

[Matt]

Dear Ken et al.,

Re: Bryophyta
There is a growing consensus suggesting that the bryophytes are not
monophyletic and possibly represent several quite separate evolutionary
lines.  Therefore, proponents of this hypothesis have classified bryophytes
into three coordinate phyla: Anthocerotophyta (hornworts), Bryophyta
(mosses), and Marchantiophyta (liverworts) (e.g., Buck & Goffinet 2000;
Crandall-Stotler 1984; Crandall-Stotler & Stotler 2000; Duckett & Renzaglia
1988; Goffinet 2000, Kenrick & Crane 1997).

Cheers,
Matt