NOMENCLATURE. 
17 
the exact oitliograpliy of the radical is preserved, with any 
accents with which it may be surcharged, tlie word Ijeing 
used in the adjective form and receiving the snfhx ensis, 
ius, icus, inus, itus, etc., if tlie genus be mascnline, as 
in (dze)ien!^is, etc., the last syllable varying in 
accordance with the gender of the generic term. 
If the radicals of geographical or other names give rise to two or 
more too closely similar derivatives, as ///spti/i/t.'! and ; or 
Jlavtidi'!, -Ami JhiL'hitdh, these should not be emplo3md concnrrently 
to distingnish different species in the same genns. 
Greek prefixes or suffixes should onl}' be combined with words 
derived from the same language ; but those of Latin origin are more 
generally used, as scientific terms are essentially Latin in character. 
The repetition of the same word for the generic, the specific, or 
the varietal name of a species is undesirable and should whenever 
possible be avoided. 
Trinomiali.s.m is an extension of the Linnean method of nomen- 
clature, by tbe addition of a third name, to indicate the more 
important phases of specific variation, which name is preferably 
derived from tbe Latin language, and in construction and modifica- 
tion is subject to the same rules as the specific names ; if, howevei-, 
the word Varietas in either its fidl or contracted form be interpo.sed 
between the specific and varietal name, the varietal term if in the 
adjective form, should ahvays take the feminine termination : 
Example, Sphtcruim lacustre var. hracli^nuart, Bonrgt. If, however, 
that word is not interposed, and it is not essential that it .Giould be, 
then the varietal name must accord in gender with the generic 
term ; Example, Spharium Idcustre brochontduam Bonrgt. 
Mon.stro.sities when named, which is seldom desirable, take the 
neuter termination, if the word Monstrum, or one of its contractions, 
is interposed between the specific and monstral names, the latter 
beingin the adjective form: Example, Lhnmm ptrepra \\\.)^hd^<trcrmm 
Jeffr., but when the word Monstrum is omitted, tbe trinomial term 
must agree with the generic name, as in the varieties : E.xample, 
Limncm perecjra sinidrorsa Jeffr. 
Though it is desirable that a name should recall or indicate some 
character or peculiarity of the organism, it is not absolutely 
essential that it shouhl do so, as a name is simply a name, mark, or 
B 
