Examples:- Puccinia Hieracii f. sp. villosi, Puccini as trum 

 Epilobii f, sp. Abieti-Chamaenerii. 



Section 4. The ptibli cation of names and the date of each name or 

 combination of names. 



Art, 36. On and after January 1st., 1908, the names of new 

 groups of living plants will not be considered validly published 

 if they are not accompanied by a latin diagnosis and by an illus- 

 tration or figures showing essential characters of the subject 

 in question. 



Arte 39. After the last word ("priority") in line 5 add: 



"for living plants; for fossil plants on and after 

 Jan. 1, 1912, the date of simultaneous publication 

 of a latin diagnosis and of a figure." 



Recommendati ons . 



ZVIIIo bis. When they publish the names of new groioips, to indicate 

 carefully the subdivision that they consider as the type (of 

 nomenclature) of this group; the genus -type in a family, the 

 species-type in a genus, the variety- type in a species. This 

 precaution will avoid difficulties of nomenclature when the group 

 in c[uestion happens in the future to be disorganized. 



XX. When they publish names of new groups . among the works writ- 

 ten out in a modem language (flowers, catalog, etc.), the latin 

 diagnosis must appear simialtaneoxtsly, and the figures in paleo- 

 botany which render these names valid from the standpoint of 

 scientific nomenclature. 



XX. bis. In view of particular difficulties, which the identifica- 

 tion of fossil plants presents, to give, besides the latin diagno- 

 sis, a detailed description in French, English, German, or Italian. 

 XX. ter. When they describe new groups of lower cryptogams , espec- 

 ially among the Fungi, or microscopic plants, to add a figure or 

 figures of those plants to their description with the details of 

 anicroscopic structure which will aid in their identification. 

 XX. quart. The description of parasitic plants must always be 

 accompanied by the identification of their hosts, in particular 

 among the parasitic Fungi. The hosts must be desigr^ted by their 

 scientific latin names and not by their c ommon^^mesjghos e signif-! 

 ication, in modern languages, is often doubj^^^^^Tx n o'p*^ 



Section 5. On the precision to be ^l-ven Wos^mBS^!s^^,MiQ^frtSM.^ 



of the author who fl^t P-teM^^^pjT„Oi„(;,^| ' 



Recommendations. \ . Kot to be taken frsm the ^ . 



DCy. bis. The citation in parenthesis of tHfe^5,^Sirjgi,Mj^aa|tw^"is 

 aspecially useful in the absence of synonymy Si**=wfe^i.^a&=^atter is 



