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159 The naming of organisms (and plant communities)
potentially, a name-bearing type fixed to provide the objective
standard of reference by which the application of the name is
determined; see typification.
printed matter: text or illustrations mechanically reproduced by printing in
considerable quantities and in intentionally permanent form, and in
which each letter of text, or each illustration, is formed from a
fabricated master.
printer’s error: an incorrect spelling or other error made in type-setting; a
typographical error.
printing on paper: the production of numerous identical copies of text or
illustrations on paper, by transferring an image of text or
illustrations in wet ink from a prepared surface (e.g. type,
lithographic stone, lithographic plate, engraved plate, wood block,
gelatin) onto paper (compare xerography); in zool. photography (i.e.
the production of images on light-sensitive paper) does not
constitute printing.
prion: (vir.) a small protinaceous infectious particle that resists inactivation
by procedures which modify nucleic acids; prions cause
transmissible neurodegenerative diseases of animals.
priorable name: (1) a name that is established and is to be taken in account
for purposes of determining the accepted name of a taxon. (2) (bot.,
obsol.) sometimes used in a restricted sense for a legitimate name
which cannot be adopted in a new position because of resultant
problems of homonymy.
priority: (1) (zool.) seniority fixed by the date of availability; see Principle
of Priority. (2) (bot.) a right to precedence established by the date of
valid publication of a legitimate name or of an illegitimate earlier
homonym, or by the date of designation of a type. (3) (vir.) not
observed in the naming of taxa and viruses.
pro hybrida: as a hybrid; (bot.) used in citations to indicate that a binary
name regarded as that of a species was originally published as that
of a hybrid.
pro parte, [p.p.]: in part; used in citations to indicate that a taxon as
circumscribed by an author covered more than a single taxon only
one of which belongs to that being referred to.