[Taxacom] Land plant taxon has been renamed

Paul van Rijckevorsel dipteryx at freeler.nl
Wed Oct 24 09:46:38 CDT 2012

As a descriptive name "may be used unchanged at different ranks",
I would much prefer "Embryophyta" over "Embryopsida", as
1) is much closer to the well-known English word "Embryophytes"
than is Embryopsida.
2) surely makes more sense, linguistically.
3) using the ending -opsida here rather suggests that this is
a hybrid between an automatically typified name and a
descriptive name and this name would look extra odd when used
at a rank different than class.

I cannot tell if Embryophyta is a validly published name?


From: "John McNeill" <johnm at rom.on.ca>
Sent: Tuesday, October 23, 2012 11:12 AM

Yes, Jim, Embryopsida is Code compliant -- the relevant provisions are:

 11.10.  The principle of priority does not apply above the rank of family
(but see Rec. 16A).

16A.1.  In choosing among typified names for a taxon above the rank of
family, authors should generally follow theprinciple of priority.]


16.1.  The name of a taxon above therank of family is treated as a noun in
the plural and is written with aninitial capital letter. Such names may be
either (a) automaticallytypified names ....; or (b) descriptive names, not
formed, which may be used unchanged at different ranks.

Embryopsida is a descriptive name.

Unfortunately there are a number of other situations in which such a
sensible approach has not been achieved -- as in the need to use the family
name Plantaginaceae  evocative of the temperate weedy plantains for Veronica
and other former members of the Scrophulariaceae

Cheers,  John

John McNeill, Director Emeritus, Royal Ontario Museum;
    Honorary Associate, Royal Botanic Garden, Edinburgh
Mailing address:  Royal Botanic Garden, Edinburgh, EH3 5LR, Scotland, U.K.
Telephone:    +44-131-248-2848;  fax: +44-131-248-2901
Home office:  +44-162-088-0651
e-mail: jmcneill at rbge.ac.uk (mail to johnm at rom.on.ca is also read)

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