PRODROMUS FLOR BRITANNICE 105 
In most cases it in “ ev specific character when associated 
with paper group-chara 
e author lease 15 species within the area of the flora, 
ae suclaahe Treland and the Channel Islands as well as Great 
Britain, but the account of the three last species, H. nes H, 
crocatum, and H. sabaudum, is left over for the next part. 
In the last edition of the London Cata logue, published in 1895, the 
names of 104 species of Hieracitum are enumerated,but 8 of these are 
indicated as aliens, and are not therefore included by Mr. Williams ; 
of the remaining 101 species in the Catalogue, 12 are not quoted by 
iams; and whether H. maritimum Hanb. is intended to be 
dealt with will appear when the account of the genus is finished in 
the next part. On the other hand two species, published since the 
date of the Catalogue, are included, and one species, H. rotundatum 
Kit. (1814), not named in the Catalogue, has been recognized among 
the materials in the British Museum Herbarium. In the revision 
full descriptions in Latin are given of the genus, subgenera, series, 
subseries, sections, subsections, and species; thus a good synopsis 
is supplied, and much original work has been spent in the course of 
it; also historical information with reference to the British hawk- 
weeds is given 
ae are some considerable changes in nomenclature. The 
name H. murorum L. is rejected for ene plants, and the species 
ae so called appears under the name of H. silvaticum Gouan. 
‘« Linneeus described H. murorum, var. a, var. 3, and var. y. The 
ents aa Linneus called var. _syleaticnn, _— raised to 
ecific rank as H. edie: and its rank as a species has not 
Been ariel He added two other poe Ste which, } however, do 
not impair the stability of the species. Fries took out var. a, an 
called it Hieracium caesium. It is obvious, therefore, that if the 
Linnean name be retained at all, which ° — desirable, it 
should be made to aa to var. je! and n r. B.” It would 
be interesting to determine var. y of the Linnesa t species, for it was 
defined as ‘‘ Hieraciam macrocaulon hirsutum, folio longiore. Ray. 
Angl. 8, p. 169”; canit be Hieracium leptocaulon hirsutum, folio 
longiore, Ray Syn. 169, which is the basis of H. maculatum Sm 
and was a Westmoreland hare t? Anaccount of Ray’s latter plant 
is given in his Hist. Plant. iii. p. 138, n. 5 (1704). 
The 75 species kept ve consist of 4 published cs Linneus in 
1758, 1 of Gouan in 1778, 8 of Villars in 1779 and 1789, 2 of 
Wilkienow i in 1804, 1 of Tenore in 1811, 1 of trees in 1812, 2 of 
Kitaibel in 1814 and 1815, 11 of Fries in 1819-1862, 1 of Tausch 
in 1828, 1 of Gibson in 1848, 7 of Backhouse in 1855 and 1856, 
1 of Hartman in 1870, 2 of Almquist in 1871 and 1898, 6 « 
Lindeberg in 1872-1889, 1 of Syme in 1879, 1 of Lénnroth e 
1882, 14 of Hanbury in 1888-1894, 2 of Elfstrand in 1890 an 
1893, 2 of W. R. Linton in 1890 and 1901, 1 of Beeby in 1891, 3 of 
E. F. Linton in 1891 and 18938, 1 of E. s. Marshall in 1892, 2 of 
Dableessd in 1898 and 1902, 2 of Purchas in 1895 and 1899, 1 of 
in ic 1000; and 2 of F, N. ba eget 1902; thus more than 
