INTERNATIONAL RULES FOR BOTANICAL NOMENCLATURE 13 
which the different fascicles or parts of the volume were published, 
as well as the number of pages in each. 
‘XXIII. When works are published in Gerona to require 
the editor to indicate on the separate copies the date (year and 
month) of publication, and also the title of the periodical from 
which the work is extra 
IV. Separate copies should always bear the pagination of 
the periodical of which they form a part ; if desired, ees may also 
bear a special pagination. 
Section re On tHE PRECISION TO BE GIVEN To NAMES BY THE 
ATION OF THE AUTHOR WHO FIRST PUBLISHED THEM. 
Article 40. For the com ra of the name or names of a 
group to be accurate and complete, and in order that the date may 
e readily verified, it is eonbiasy to quote the author who first 
published the name or combination of names in 
es: Simarubacee Lindley, Simaruba Aublet, Simaruba 
levis Grisebach, Simaruba amara Aublet var. opaca Engler. 
Article 41. An alteration of the constituent characters or 
of the circumscription of a group does not warrant the quotation 
of another author than the one who first published the name or 
combin sae of n 
e changes have been considerable, the words mutatis 
charact., reper parte, or excl. gen., excl, sp., excl. var., or some other 
abridged indication, are added after the citation of the original 
pore according to the wieaid es the changes that have been 
ma of the group in ques 
Binenipley Phyllanthus Lee em. vi (edit), Mill. a Myosotis 
L. pro parte, R. Br. ; Globularia cordifolia L. excl. v r. Ba; &e. 
Article 42. When a manuscript name has bs n published 
and referred to its author, the name of the person va pes ce 
it should be appended to the citation. The same rule should 
be followed for names of garden origin when they are cited as 
‘« Hort.” 
Kxamples: Coppers lasiantha R. Br. ex or apud DU. ; Streptan- 
aig _fgieraniatine Nutt. in Torr. et Gray; Gesnera Donklarii Hort. 
r apud Hook. Bot. ag. tab. 5070. 
werk 43. When, in a genus, a name is applied to a group 
i i e ran 
or to a group which becomes of higher or lower rank than before, 
the change is equivalent to the creation of a new group, and the 
effe 
author who has effected the change is ae one to be quoted. The 
original author can be cited only in parenthesi 
Ex es. Cheiranthus tristis L., a moved i nto the genus 
Matthiola, becomes Matthiola tristis R. a or Matthiola tristis (L.) 
R. Br. Medicago polymorpha L. var. orbicularis L. when raised to 
the rank of a species becomes Medicago orbicularis All., or Medicago 
orbicularis (Li.) All. 
