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59 The naming of organisms (and plant communities)
features (e.g. chromosome number or structure) but not at all
morphologically; see also cytovar.
cytovar.: (bot., unoff., obsol.) proposed for use in the nomenclatural
citation of a cytotype (q.v.).
dagger, [†]: see crucifix.
Dall Code: (zool., obsol.) a forerunner of the International Code of
Zoological Nomenclature (q.v.), a draft of which was prepared for
the American Association for the Advancement of Science by W. H.
Dall and published in 1878; it was intended to cover (bot.) as well as
(zool.) but was never formally adopted internationally.
date: (1) of a name, the date requirements for establishment or valid
publication under the pertinent Code were fulfilled. (2) (bio.) of a
name, that of its registration, i.e. the date of receipt of the relevant
matter at the registration office. (3) (bio.) for purposes of precedence
of a name, the date attributed to it in an adopted list (q.v.) or, for
unlisted names, the date on which it was validly published (bot.,
prok.), became available (zool.) or was established (bio.). (4) of a
work, the date on which copies of the work become available by
purchase or free distribution, either to the general public or to
systematic libraries; this date may or may not be the same as the
date printed on the work itself; in practice often accepted as the date
of mailing or passing to a carrier.
Declaration: (zool.) a provisional amendment to the Code, published by the
International Commission on Zoological Nomenclature.
declension: a system of cases and case endings (q.v.).
deem: to consider or rule something to be what it may or may not be; a
work and its contents are deemed to be published by the author not
the publisher; the date of a publication may be deemed to have been
be a particular one whether or not that is when it was actually
published (e.g. the tenth edition of’ Linnaeus’s Systema Naturae is
deemed for the purposes of zoological nomenclature to be published