Access Resource - Global Biodiversity Information Facility

101 The naming of organisms (and plant communities)
a working or interim name; see also cognomen, provisional name,
taxon label.
informal usage: (bot.) usage of rank-denoting terms at more than one nonsuccessive
position in the taxonomic sequence, not in accordance
with positions mandated in the Code; e.g. ones used at more than
one non-successive position in the same work; names involved in
such usage are validly published but unranked.
information, taxonomic: descriptions, illustrations and other matter
relating to taxa; in (zool.), such information may be taken, for the
purposes of making a name available, from published (and not
disclaimed) works which are not available (e.g. because they were
published before 1758, did not consistently apply binomial
nomenclature, or have been suppressed but not ruled to be treated as
unpublished by the Commission..
-informes: (zool., unoff.) proposed as a possible standardized suffix for
names in the rank of order.
infra-: prefix, below. (1) used of names and ranks below that indicated by
the remainder of the term. (2) (unoff.) a prefix added to a term
denoting rank indicating a category below “sub-”, e.g. the rank of
infrafamily below that of subfamily; see also intra-.
infraclass: a rank between subclass and superorder.
infrafamilial: of any taxonomic unit below that of family.
infrageneric: of any taxonomic unit below that of genus; intrageneric.
infraorder: (1) (zool., unoff.) a rank between suborder and superfamily,
and used principally in mammals). (2) any taxonomic unit below
that of order.
infraspecific: (1) of any taxonomic unit, or name, in a rank, below that of
species; intraspecific. (2) (zool.) the third name in a subspecific
trinomen.
infrasubspecific: (1) of a taxon, one at a lower rank than subspecies. (2)
(bot., obsol.) any form of a species other than a subspecies; i.e.
including aberrations, seasonal forms, sexual forms.
infrasubspecific entity: (1) (zool.) taxa below the rank of species. (2)
(zool.) specimens within a species differing from other specimens as