Cyperales or Juncales?

[Ken Kinman]

Dear All,
     The APG (Angiosperm Phylogeny Group) recognizes an Order Poales sensu
lato (including all the Glumiflorae orders and Bromeliales as well).  I even
started using Poales sensu lato after Peter Stevens posted on the updated
APG site a couple of months ago.
     However, I used a more traditional classification (in 1994), and now
that I have been digging deeper, I think I would prefer to stick with that
approach, with separate Orders Bromeliales, Hydatellales, Xyridales,
Typhales, Cyperales, and Poales (sensu stricto).
     In 1994 I used the name Cyperales for sedges, rushes, and thurnia (3
families), and stated that it included Juncales (and the APG still
recognizes this as a clade).  However, Reveal seems to prefer the older name
Juncales over Cyperales (when they are combined in the same order), while I
(among others) prefer Cyperales.  Is there anything in the ICBN which
*mandates* priority for ordinal names?  If not, would most botanists prefer
Cyperales or Juncales?
     ---------  Ken Kinman

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