[Taxacom] Quick question regarding formation of some family names in botany

[Tony Rees]

Thanks Paul, I downloaded the Silva reference cited via AlgaeBase and it
indeed supports the versions of Dinophysaceae, etc., without the additional
"i", while noting the other variants and their uses. I agree that this
reference settles the matter, for me at least (and AlgaeBase now); it
remains a minor mystery why versions with the "i" are still being cited so
frequently in relatively recent publications (e.g. in Ruggiero et al., and
AlgaeBase before 2020 - I am not exactly sure when their change occurred)
but it is good to have an expert statement of the situation.

For reference of any future persons interested in this matter who may come
across this thread, in his 1980 Regnum Vegetabile paper Silva wrote:

 "Dinophysaceae Bütschli (1885, p. 1009,'Dinophysida'). The stern of
Dinoplysis Ehrenberg (1839, p. 157) has variously been considered to be
Dinophy- (Dinifera subfam. Dinophyida Bergh, 1881, p.213), Dinophys-
(Dinifera fam. Dinophysida Bütschli, 1885, p. 1009; Peridiniaceae tribe
Dinophyseae Schütt, 1896, pp. 16, 26; Dinophysaceae (Schütt) Lemmermann,
1899a, p. 371), Dinophysi- (Dinophysiaceae Pavillard, 1916, p.44), and
Dinophysid- (Dinophysidaceae Engler, 1892, p.6). The decision as to which
is correct depends upon whether -physis is Greek or latinized Greek. If one
assumes that it is Greek (meaning 'creature'), with the genitive singular
φυσεως, the correct stem is Dinophysi- (or Dinophys- if one follows the
practice of dropping the ι or ε from Greek stems when forming Latin
derivatives). Ehrenberg, however, indicated that the chief character of the
organism was its urceolate shape, so that it seems more likely that -physis
is a latinization of φυσα, the Greek word for 'bellows' or 'bladder'.
According to this interpretation, the stem would be Dinophys-, as used by
Bütschli, the first author to propose a family name based on Dinophysis."

Thanks to Paul for the alert and to AlgaeBase for providing access to the
information.

Regards - Tony


On Wed, 10 Feb 2021 at 21:57, Paul van Rijckevorsel <dipteryx at freeler.nl>
wrote:

> Yes, from what I pointed out the extra -*i*- would be wrong,
> but maybe a case could be made for* Dinophysidaceae*.
>
> I looked a little further into it, and noticed that WoRMS
> refers to Silva, 1980 (Regnum Vegetabile 103: 59-60)
> where he explains why it is *Dinophysaceae*. Under the
> then-*Code* he saw a possible derivation as Greek,
> which would result in* Dinophysiaceae*. However, even
> at that time this was apparently an unlikely interpretation.
>
> Paul
>
> Op 10/02/2021 om 06:40 schreef Tony Rees:
>
> In that case, I would welcome input of others...
>
> In the short term in IRMNG I have decided to keep the shortest variants of
> the name as "accepted", i.e. change Dinophysiales
> to Dinophysales, Dinophysiaceae to Dinophysaceae, and keep Oxyphysaceae as
> is (I had it in both variants, with Oxyphysiaceae as an unaccepted spelling
> variant); this corresponds with the current (2021) version of AlgaeBase,
> but not to a previous (2015) version - I am presuming that the compilers of
> that system made these changes purposefully. On the other hand, bith
> Wokipedia and Wikispecies presently have the forms with the "i" inserted (
> Dinophysiales, etc.), and the latter (longer) variant has more Google
> Scholar hits than the shorter form (Dinophysiales 1,260, Dinophysales 184)
> at this time (all years); when the period is truncated to (e.g.) 2010 to
> current, a similar trend is still evident (Dinophysiales 711, Dinophysales
> 105). So an "expert informed" assessment of the applicable grammar in this
> situation would certainly be appreciated.
>
> Regards - Tony
>
>
> On Wed, 10 Feb 2021 at 03:52, Paul van Rijckevorsel via Taxacom <
> taxacom at mailman.nhm.ku.edu> wrote:
>
>> This may not be a question with a clear answer.
>> As indicated, this will depend on the genitive
>> form of these generic names. Third-declension
>> nouns on -/is/ can be divided into four groups,
>> each with a different genitive form: on /-is/
>> (unchanged), on -/idis/, -/inis/, or -/itis/.
>>
>> There is not necessarily close agreement on
>> what name gets what genitive. For a long
>> time there was a lively debate on the correct
>> spelling of the name of the family containing
>> /Capparis/. In the end those favouring
>> /Capparidaceae/ lost out to /Capparaceae/ when
>> the latter spelling was conserved.
>>
>> Paul
>>
>> Op 08/02/2021 om 19:50 schreef Tony Rees via Taxacom:
>> > Of course the second instance of "Dinophysaceae" in my message above
>> should
>> > read "Dinophysiaceae", sorry...
>> > <https://about.me/TonyRees>
>> > Regards - Tony
>> >
>> >
>> > On Tue, 9 Feb 2021 at 05:49, Tony Rees <tonyrees49 at gmail.com> wrote:
>> >
>> >> Dear Taxacomers,
>> >>
>> >> I have come across the following issue and believe the answer lies in
>> the
>> >> relevant nomenclatural Code (ICNafp), but need some expert guidance
>> since
>> >> my latin is not so good...
>> >>
>> >> The question concerns the correct formation of family names (and above)
>> >> based on genus names ending in -physis (examples in dinoflagellates,
>> >> treated under the botanical Code for this purpose: Oxyphysis,
>> Dinophysis)
>> >> for which both types of derived family names have been used in the
>> >> literature, without or with the final "i", namely  Oxyphysaceae /
>> >> Oxyphysiaceae,  Dinophysaceae / Dinophysaceae. The same applies to
>> names of
>> >> higher rank based on such genera, e.g. Dinophysales / Dinophysiales,
>> etc.
>> >>
>> >> The relevant Article of the current ICNafp states:
>> >>
>> >> "*18.1.* The name of a family is a plural adjective used as a noun; it
>> is
>> >> formed from the genitive singular of a name of an included genus by
>> >> replacing the genitive singular inflection (Latin *‑**ae,* *‑**i,* *‑*
>> >> *us,* *‑**is;* transcribed Greek *‑**ou, **‑**os,* *‑**es,* *‑**as,* or
>> >> *‑**ous,* and its equivalent *‑**eos*) with the termination *‑**aceae*
>> (but
>> >> see Art. 18.5
>> >> <https://www.iapt-taxon.org/nomen/pages/main/art_18.html#Art18.5>).
>> For
>> >> generic names of non-classical origin, when analogy with classical
>> names is
>> >> insufficient to determine the genitive singular, *‑**aceae* is added to
>> >> the full word. Likewise, when formation from the genitive singular of a
>> >> generic name results in a homonym, *‑**aceae* may be added to the
>> >> nominative singular. For generic names with alternative genitives the
>> one
>> >> implicitly used by the original author must be maintained, except that
>> the
>> >> genitive of names ending in *‑**opsis* is always *‑**opsidis*."
>> >>
>> >> So I get the feeling that versions without the included "i" would be
>> >> correct in this instance (Oxyphysaceae, Dinophysaceae) but would
>> welcome
>> >> confirmation from others who are more expert in this area than I.
>> >>
>> >> Regards - Tony
>> >> Tony Rees, New South Wales, Australia
>> >> https://about.me/TonyRees
>> >> www.irmng.org
>> >>
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