26 THE BOTANICAL EXCHANGE CLUB OF THE BKrTISH ISLES. 
rock coming very near the surface) do not make the occurrence 
of C. pratensis a priori likely. This, coupled with the facts re- 
garding the neighbouring distribution of C. acaulis, makes it very 
doubtful if the determination C. acaulis x pratensis is correct. 
Moreover, the fact that the plant is scattered in many compact 
little patches over a considerable area, of which no doubt I 
have actually seen only one boundary, and that it has stood its 
ground for many years (if I am right in supposing it is West- 
combe’s jdant) opens the question whether it is a hybrid at all. 
It produces ripe and perfect fruit. Mr. Spencer Moore suggests 
C. acaulis x tuberosus. A suggestion gathered by myself from 
the 13 rit. Mus. Herb, is C. acaulis, var. dubius, Willd. In neither 
case do the leaves look right for the Glam, plant, which moreover, 
I believe, has constantly a branched stem with long peduncled 
heads. — H. J. Riddelsdell. “This reminded me at once of 
a form (or hybrid) of C. pratensis which I collected at Roundstone 
in 1885. The only obvious difference was in the broader leaves 
and their very coarse lobing. The Roundstone thistle, which 
has also occurred on the coast of N. Wales, fide Mr. A. Bennett, 
was thought by Prof. Babington to be a form of C. pratensis, 
and proved fertile on cultivation. Though not identical in shape 
of leaf, I see no other difference. The involucres of the Nash 
Point plant is glabrous ; so were our wild Irish plants ; weather- 
worn, I think, for they proved cottony in tlie garden. The only 
possible partner out of the species named as growing about would 
be C. acaulis ; but, beyond the glabrous involucres and the lobing 
of the leaves, I do not see in the armature and clothing of the 
leaves, the shape of the bracts or the fruit, any of the signs 
I should expect in that direction. I do not know C. Woodivardi 
from specimens. If it is a form of that hybrid it is very much 
on the C. pratensis side. — E. F. Linton. 
Picris hieracioides, L., var. arvalis (Jord.). Port Talbot Docks, 
Glamorgan, July 1904. A new county record. Mr. Druce kindly 
named the plant. — H. J. Riddelsdell, 
Hieracium. The Rev. E. F. Linton has kindly examined 
and reported on the representatives of this genus. 
Hicracium concimiatum, F. J. Hanb. Eardley, Herefordshire, 
31st May 1904. — Augustin Ley. “Should be H. Pilosella, var. 
concinnatum. The English plants are neither so dwarf, stout, 
or short-stoloned as the original Scotch plants ; still Mr. Hanbury 
considers they may come under the var. as a form.” — W. R. 
Linton. 
H. Pilosella, L., var. nigrescens, Fr. Glen Clova (800 ft.), 
Forfar, 30th June 1904. — E. S. Marshall. “In two specimens 
