14 THE JOURNAL OF BOTANY 
yet detected elsewhere. Clearly in its place as a variety of 
H. : ‘ 
H. s 
in Brecon; locally frequent in Yorks. 1. Ribblehead and Cam 
Glen; Moughton Scaurs, Clapham. 2. Ingle orough Scaurs and 
ton 
h confusion has prevailed with regard to H. pellucidum 
Laestad. and H. serratifrons Alma. var. lepistoides Johanss. and 
allied forms, due in great measure to the fact that British plants 
have been at different times wrongly named by Scandinavian 
authorities. | 
It appears that we have in Britain, in addition to the two 
above-mentioned plants, the following allied forms (Dahlst. Bidr. 
t. Syd. Sver. Hier. ii. 1893) :— 
H. GRANDIDENS Dahlst. Leaves broad, + ovate at base, cor- 
date-hastate, coarsely reverse-laciniate. Involueres rather thick, 
short; phyllaries rather narrow, linear-lanceolate, floccose on 
margin, but not on middle surface. 
H. rorticers Dahlst. Leaves narrow, lanceolate to ovate- 
lanceolate, acutely serrate dentate, acutely laciniate at base. 
Involucres narrow, often twisted (‘‘contorta”’). Phyllaries narrow, 
densely glandular, floccose on margin, the floceum also sprinkled 
over surface. 
H. crassicers Dahlst. is described in Brit. Hier, p. 46, and 
differs from both the above in having the root-leaves entire o 
subentire, often shorter and more obtuse, and in the large thick 
heads 
All these forms have glabrous ligules, and styles yellow at first 
and becoming sublivescent. The colour of the heads appears to 
be full black in crassiceps, green or greenish brown in lepistoides, 
erella. 
very narrow phyllaries, , an 
exovoding pappus, longly senescent, and by the strongly ciliate 
es 
Much material belonging to one or other of these segregates 
has been named in Britain either Hi. pellucidum Laestad. or 
H. lepistoides Johanss. True H. lepistoides Johanss. appears to 
be rare in Britain. 
H. GRanpiwens Dahlst, _ I. Capel-y-ffin, in the Black Mountain. 
II. Tawe Glen, at Abercrave. III. Lane-side near Builth, 
i ae nig sae rgrcae ai; oo apes Glen; Riddelsdell! Pont- 
suc, in Glyn Taf Fechan. ITT. Erwood, in the Wye Valley. 
Near Wetherby, Yorks : Pickard | pe os i ee 
H. crassicers Dahlst. IT, Aberclydach, Glyn Collwng, Dyffryn 
