HIERACIUM MURORUM AND H, CHSIUM OF BRITISH FLORAS 291 
aes oblong, obtuse, concave, externally minutely — 
argin ciliate. Petals oblong, with a globose fleshy gland imm ie 
diately behind the apex, 2 mm. long or a little longer. Shamma 
onal oe yee v5 the carpels. Carpels distinctly shorter sham 
the ls. we subobcuneate, — longer than broad, apex 
slightly seit ten abhor ‘5 mm. 
HIERACIUM MURORUM AND H. CESIUM OF BRITISH 
FLORAS 
By Freperio N. Wituams, F.L.S. 
In revising the list of British Hawkweeds it is desirable to 
compare series of specimens with series of continent tal specimens, 
regardless of the specific names which such authentic specimens 
ear nd in the first place a few fundamental misconceptions 
ought to be remo sepa describe urorum, var. @ 
ar. £, and var. The , which Linneu called ‘var 
its rank as a species has not been assailed. He 
varieties, which, however, do not impair the stability the ae 
ries s took out var. a ang called it ‘‘ Hieracium cesium sa 2a 
obvi y Phere , that, the nee name be roained at all, 
don 
ya > Fries. All English asi retain the Linnean specie 
name, but apply it erroneously to v . Fries 
his Epicrisis gen. Hierac, ;—‘ H. ps est aii Hi. he a 
inn., monente Wahlenbergio, solum ut Upsalie 1 
mn. auct. rec. est H. muror rum civationm L. (ef. 
Linn. Suec.) et tantum in silvis obras On the other hand, 
H. cesium as described by Fries can not be made to apply to any 
British plant, as Syme} implies in his gp oe of H. flocculosum ; 
and Mr. J . G. Baker long ago} described the so- -called British ‘‘H. 
cesium’? under the name o . casium var. Smithit, which is the 
well-known plant of the i:montone scars of Yorkshire, found eae at 
Kirkstone, in Northumberland. ‘This is the « H. murorur of 
Smith,s but not of Linneus, though Smith adds the lites 
. culosum Backh. well-known plant of 
whose identity there is no doubt, and differs but little, and by : 
til. 
specific characters, from H. casium var. Smith 
says, Backhouse’s H. flocculoswm differs from it only in having tw 
* Illustr. Obs. Bot. p. 56 ore: t Journ. Bot. 1879, p. Se 
t — Bot. ed. 3, v. p. 1 5 Engl. Bot. xxix. t. mie 
