BOTANICAL EXCHANGE CLUB REPORT, 1904 67 
gularly pinnatifid, with lobulated or coarsely toothed lobes ; achenes 
silky. Grows on the lower slopes of Etna. S. squalidus (S. chrys- 
anthemifolius Poir., S. siculus All.), leaves bipinnatifid with narrow 
nearly linear lobes i 
in Sicily. e var. glaucescens is a connecting link or a hybrid 
two other species or varieties. var. chrysanthemifolius seems to 
be only an extreme state of typicus.” I saw this latter growing in 
the volcanic dust in the Strada Etnensis, and closely allied forms 
on dry gravel rubble near Oxford. may here record the occur- 
rence of S. squalidus at Southall in Middlesex, at Swindon in 
Wilts, and at Verney in Bucks.—G. Cuarmer Dru 
Cnrcus (?). Rough grassy ground about Nash Point, Glamorgan, 
July 1904. In patches sometimes several yards across, and extend- 
occur frequently all intermediate plants between glaucescens and the 
i he 
similar ground some little way up one of the small valleys leading 
down to the shore. The thistles of the neighbourhood are Carduus 
pycnocephalus L., C. nutans L., C. crispus L., C. nutanti-crispus, 
Cnicus eriophorus Roth., C. palustris Willd., C. arvensis Hoffm., an 
C. acaulis Willd. The last is not widely spread; it occurs some- 
times in the immediate neighbourhood of the present plant. Pro- 
bably the plant of Phyt. i. 780, which was gathered “ between 
St. Donat’s and Dunraven”? by Westcombe, and named C. tuberosus 
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 Westcombe’s plant), opens the 
question whether it is a hybrid atall. It produces ripe and perfect 
ruit. Mr. Spencer Moore suggests C. acaulis x tuberosus. A 
suggestion gathered by myself from the Brit. Mus. Herb. is C. 
acaulis var. dubius Willd. In neither case do the leaves look right 
for the Glamorgan plant, which moreover, I believe, has constantly 
a branched stem with long peduneled heads.—H. J. RipEtsDELL. 
This reminded me at once of a form (or hybrid) of C. pratensis 
which I collected at Roundstone in 1885. The only obvious differ- 
