54 THE JOURNAL OF BOTANY 
Sedbergh; A. Wilson 
H. corymposum Fr. Brecon, locally abundant in river-glens 
and on banks in mountain districts. IT. Hedge-bank, Torpantau ; 
in the Hepste and Mellte Glens; Cellwen; on the Usk at Senni- 
bridge. IIT. On the Wye at Erwood. IY. Very abundant on the 
Yrfon between Llanwrtyd and Abergwesyn; on the Upper Towy; on 
the Elan near Nant-gwyllt. Yorks,rare? 2. Sedbergh; Wilson, 1894! 
Var. salicifolium (Lindeb.). In both counties, as the type, and 
bundant. II. Cwm Taf Fechan; Mellte Glen; on the 
Tawe at Craig-y-Nos Castle, III. On the Yscir Fechan, near 
O Llanwrtyd; Gwrach Glen on 
the Upper Towy. 2. On the Lune, Sedbergh ; Handley! . Middle 
Moss Dale, Hawes; 7’. A. Cotton! 
H. corymbosum x boreale was abundant on a hedge-bank at 
Dolygaer (II) for some years along with both the parents. The 
hybrid subsequently died out. u 
H. avratum Fr, Yorks, rare ; not in Brecon. 2. Chapel-le- 
Dale. 3. Hestleton Glen. 
H. tavense, sp. noy., or sub-sp. nov. H. rigidum Hartm. var. 
tavense Ley, Brit, Hier, p. 83. The position of this remarkable 
it here on the suggestion of Rey. W. , : 
Differs from H. awratum in the slender, elegant growth, more 
and phy aries bearing numerous micro-glands. Not yet known 
from any station except those in the Upper Tawe Glen; Brecon. 
H. crocatrum Fr. Rare in Yorks; absent from Brecon. 2, 
Moorland streamlet between Chapel-le-Dale and Ribblehead, 1900. 
he Sedbergh, form: A Wilson | 
in Yorks. In Brecon the following are at present kn 
I 
wn :— 
- DUMOSUM Jord,,* agg, ITT. He 1 
common throughout the nh dgerow, Torpantau, Probab y 
The segregates of H. sabaudum L. th i i 
Keller in their a der Schweiz (1905), oo iacbaerea en 
; ..eads with long simple hairs and glands mostly fewer th the hairs. 
Stem hairy to top, or more or less epilose wove: Gesmp detnodins Joes: = 
pig ap with glands only, or with few hairs intermixed, Group obli- 
' ©. Stem weakly hairy or glabrescent i 
. » glabrous at least in u art. 
Heads aeaaan: pe ha es few hairs, Group virgultorum Jak. J 
: ellow. 
Hands glam y Toup quercetorum Jo: 
Group vagum pa sub- or quite umbellate ; phyllaries broad and obtuse. 
