Manchester Memoirs, Vol. Ixi. (igiy), No. ;>. 5 



Coste's "Flore de France" (Paris, 1901-1906); Battandier and 

 Trabut's "Flore de I'Algerie" (Paris, 1888-igio); Gandoger's 

 " Novus Conspectus Florae Europae " (Paris, 1910); and any 

 other standard floras. 



Where no sufficiently comprehensive list of European 

 species was available, a manuscript list has been compiled, 

 especially of such polymorphic genera as Kiibus, Rosa, Hiera- 

 ciuin, Salix, etc. Even these, however, require expanding when 

 they do not include all the European and Mediterranean coun- 

 tries professing to be represented in the herbarium, as also when 

 new forms are described. To meet such cases, the most com- 

 plete flora, or monograph, is made the basis of a manuscript 

 linear arrangement of the species of the genus, and into it are 

 dovetailed additional species in their approximate places. In 

 many cases where the additional names occur in works where 

 the arrangement of species differs from that of Ny man's funda- 

 mental list, no special care hasi been taken to fix their exact 

 places in the manuscript list ; the main point ensured being 

 that the names are included and indexed, and are made readily 

 accessible under the sequence of the numbers assigned to them 

 in the manuscript index. Many of the additions consist of 

 geographical forms which are practically endemic in their 

 districts, and such names must be duly indexed if the full 

 value of an alphabetical index is to be made available. 



Where no manuscript index has been made, the first box of 

 each genus contains a rough alphabetical list of the species not 

 contained in Nyman, and such lists indicate the positions of 

 the intercalated species. The leisure of the past few years has 

 been spent in putting the herbarium in the exact sequence of 

 Nyman's species. 



The catalogue of the Continental portion of the herbarium 

 was originally intended to have expressed, in a condensed form, 

 the data furnished by the herbarium itself, by giving the coun- 

 try, locality, published numbers of theexsiccata, date collected, 

 and the collector's name. The time which this method of 

 making records entailed was, however, more than could be 

 found for it, and it was subsequently abandoned. It was, 

 however, followed for all the families from RanuncidacecE to 

 Ftimariacere, for the whole of the Cyperacece and Characece, 

 and for the following genera: — Alyssum, Viola, Cerastium, 

 Medicago, Trifoliiim, Symphytum, Primula, Alectorolophus, 

 Euphrasia, Salvia, Teucrium, Ajuga, Thymus, Mentha, Statice, 

 Cyperacece, and Equisetum. Altogether there are fifteen 

 volumes of these indices, belonging to this herbarium, and 

 there are others partially completed. 



In such catalogues the entries are made on alternate lines 

 or pages, according to the size of the page, the alternate lines 

 or pages being reserved for later entries. The rotation number 

 adopted for the species precedes the name of the species and 

 the synonyms follow immediately after. The collector's name. 



