43 



XXIII. When works are published in periodicals 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 extracted. 



XXTV. Separate copies should always bear the pagination of the periodical of which they 

 form a part; if desired they may also bear a special pagination. 



Section 5. On the precision to be given to names by the citation 



of the author who first pubhshed them. 



Art 40. For the indication of the name or names of a group to be accurate 



and complete, and in order that the date may be readily verified, it is necessary to 



quote the author who first published the name or combination of names in question. 



Examples : Simarubaceae Lindley, Sitnaruba Aublet, Simaruba laevis Grisebach, Simaruba 

 amara Aublet var. opaca Engler. 



Art. 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 combination of names. 



When the changes have been considerable, the words: mutatis charact., or 

 pro parte, or excl. gen., excl. sp., excl. var., or some other abridged indication, are 

 added after the citation of the original author, according to the nature of the changes 

 that have been made, and of the group in question. 



Examples: Phyllanthus L. em.(emendavit) Müll. Arg.; Myosotis L. pro parte, R. Br. ;^ 

 Globularia cordifolia L. excl. var. ß.\ etc. 



Art. 42. When a manuscript name has been published and referred to its 

 author, the name of the person who published it should be appended to the citation. 

 The same rule should be followed for names of garden origin when they are cited 

 as „Hort". 



Examples: Capparis lasiantha R. Br. ex or apud DC; Streptanthus heterophylltis Nutt. in 

 Torr, et Gray; Gesnera Donklarii Hort, ex or apud Hook. Bat. Mag. tab. 5070. 



Art. 43. When, in a genus, a name is applied to a group which is moved 

 into another group where it retains the same rank, 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 author who has effected the change is the one to be quoted. The 

 original author can be cited only in parenthesis. 



Examples. — Cheïranthus tristis L. when moved into the genus Matthiola becomes Matthiola 

 tristis R. Br., 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 (L.) All. 



Beconuueudatious. 



XXV. Authors' names put after names of plants are abbreviated, unless they are very short. 



For this purpose preliminary particles or letters that do not, strictly speaking, form part 

 of the name, are suppressed, and the first letters are given without any omission. If a name of one 

 syllable is long enough to make it worth while to abridge it, the first consonants only are given 

 (Br. for Brown) ; if the name has two or more syllables, the first syllable and the first letter of the 

 following one are taken, or the two first when both are consonants (Juss. for Jussieu; Rich, for 

 Richard). When it is necessary to give more of a name to avoid confusion between names beginning 

 with the same syllables, the game system is to be followed. For instance two syllables are given 



6* 



