22 BUREAU OF ANIMAL INDUSTRY. 



?D. If one species is more fully described than the others, or if it is figured, it 

 should be regarded as the type. (Kirby. ) 



?E. The majority of homogeneous species should be taken as representing a 

 restricted genus. ( Kirby. ) 



8. If the generic characters are better developed in one species (or group of species) 

 this species (or group) must be held typical. (Apparently ignoring previous action. ) 

 ( Aurivillius. ) 



9. If the description and included species prove that two or more genera were 

 intended to include the same animals, they must be regarded as synonyms. (See 

 B. A. Code, 6. ) ( Aurivillius. ) 



9A. If, however, the original types of these genera were heterotypical each of the 

 genera is valid for its own type. (B. A. Code, 7.) (Durrant. ) 



OB. If types heterotypical in structure have been assigned to each genus (there 

 being no evidence to disprove the possibility of their having been the original types) 

 the genera should be accepted in their restricted sense. ( Durrant. ) 



CODE OF BOTANICAL NOMENCLATURE, A. A. A. S., 1904. 



Of the botanical codes we will mention only the Code of Botanical 

 Nomenclature (1904), which the Nomenclature Commission of the 

 Botanical Club of the American Association for the Advancement of 

 Science has proposed for consideration of the International Botanical 

 Congress (Vienna, 1905) as substitute for the Code of 1867. This 

 newly proposed code contains the following paragraphs regarding 

 types: 



CANON 15. The nomenclatorial type of a genus or subgenus is the species originally 

 named or designated by the author of the name. If no species was designated, the 

 type is the first binomial species in order eligible under the following provisions: 



(a) The type is to be selected from a subgenus, section, or other list of species 

 originally designated as typical. 



Examples. Psilogramme Kuhn, Festschr. 50-Jiihr. Jub. Konigs. Realschule zu 

 Berlin, 332 (1882), is typified by the first-mentioned species of the second section 

 Eupsilogramme, and not from species included in the first section Jamesonia, which 

 is based on a generic name previously published; Phania DC. Prodr. 5: 114 (1826), is 

 typified by P. multicaulis DC. , the only species of the section Euphania. 



(b) A figured species is to be selected rather than an unfigured species in the same 

 work; or, in the absence of a figure, preference is to be given to a species accompanied 

 by the citation of a figure. 



Examples. Lespecfeza Michx. Fl. Bor. Am. 2- 70 (1803), is typified by L. procumbent 

 Michx. loc. cit. pi. 39, the species first figured; Basanacantha Hook. f. in Benth. & 

 Hook. Gen. PL 2: 82 (1873), is typified by Randia tetracantha (Cav.) DC., the second 

 species cited, as this had been figured by Cavanilles, whereas Randia Humboldtiana 

 DC. , the species first mentioned by Hooker, had not been figured. 



(c) The types of genera adopted through citations of non binomial literature (with 

 or without change of name), are to be selected from those of the original species 

 which receive names in the first binomial publication. The genera of Linnaeus' 

 Species Plantarum (1753) are to be typified through the citations given in his Genera 

 Plantarum (1754). 



Note. The Species Plantarum contains no generic references, but the 1754 edition 

 of the Genera Plantarum was evidently prepared at the same time and was in effect 

 a complementary volume of the same work. It accords much more nearly than 

 other editions with the treatment followed in the Species Plantarum, and thus 



