6 Bailey, Herbarium of British and Foreign Plants. 



when known, is given in the last column of the page, the next 

 to it being reserved for the date when the example was col- 

 lected. The column which precedes these two is reserved for 

 the abbreviated titles, and published numbers, of such exsiccata 

 as are included in the herbarium. When there is more than 

 one sheet of a species, collected at the same station and date, 

 the number of sheets in the herbarium, is expressed by a 

 small figure in brackets, thus (2), (3), (4), etc. 



A shortened form of the larger size of catalogue was 

 adopted for such extensive genera as Rubus, Rosa, and Hiera- 

 ciiim, and may yet be carried out for Salix. Here the syste- 

 matic list is first made out, and then the alphabetic list, but 

 the other detailed information of collectors' names, dates, 

 numbers of the exsiccata, are omitted. It will give some idea 

 of the labour involved in preparing even this shortened form of 

 catalogue, by stating that the number of entries of the m.ere 

 names in my manuscript catalogues is, for — 



Kubus, 4,000, with 6,900 separate entries, occupying 377 pages. 

 Rosa, 2,700, ,, 10,500 ,, ,, ,, 507 ,, 



Hieracimn, 5,200, ,, 17,600 ,, ,, ,, 663 



Whether catalogued or not, with Nyman's marked " Con- 

 spectus " at hand, the position of any box in the herbarium is 

 found without loss of time. All the boxes are arranged sun- 

 wise, and the numbers of the boxes in each compartment of the 

 herbarium are painted on the doors of the cases which hold 

 them. 



When the linear arrangement of the species has been com- 

 pleted, an alphabetical list is drawn up of all the specific 

 names which it contains, together with those of any sub-species, 

 varieties, forms, and the like to which a separate number has 

 been applied. Besides the usual binary names imposed upon 

 the plants, the tertiary, quaternary, and quinary names are also 

 included in the alphabetical arrangement. The inclusion of 

 such varietal names very largely increases the length of the 

 alphabetical list; thus, to take the instance of, say, Hieraciiim 

 onosmoides, Fries — a sub-species of H. saxifragiim, fully stated 

 it would stand as H. {saxifragum) onosmoides. Fries; and its 

 variety siibnuda, Arv. Touv., or its sub-variety forfhyritce, F. 

 Schultz, would require entering under the letters S, O, S, and 

 P in their respective places, to meet the cases where the collect- 

 ing botanist uses the shortened name, viz., H. forphyritce, F. 

 Schultz. The only varietal names excluded from this index 

 would be those of such frequent names as genuinum, normale, 

 iypicum, vermn, and the like, which are not worth the labour 

 of indexing alphabetically. 



In the alphabetical arrangement every individual name 

 corresponds with the number given to it in the linear arrange- 

 ment. This enables it to be immediately traced in the her- 

 barium, as the external label on each box gives the name of 



