46 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Carum Peiroselinum, Benth. and Hook., f. In a cornfield at 
Sarsden, Oxfordshire, plentifully, July 1902. There were no alien 
plants present. I have also seen it in similar situations in South 
Buckinghamshire, but there it was associated with doubtfully-native 
species. — G. Claridge Druce. 
CEnanthe fliiviatilis, Golem. In the old coal canal near Midford, 
North Somerset, July 1902. Extremely rare in the west country, 
Dorset only excepted. — Jas. W. White. 
Galium erectum, Huds. Stony ground on Breakheart Hill, Dursley, 
West Gloucester, 27th August 1902. I agree with Hewett Watson in 
his expressed opinion that this is a difficult species, and not well 
understood by all of us. And this is probably the reason why the 
station here given is the only one with which I am acquainted within 
many miles of Bristol. New county record. — Jas. W. White. 
G. Mollugo, L., variety. Hedge, Perrystone, Herefordshire, 2nd 
August 1902. Under var. a, elaUim^ ThuilL, I suppose, but remarkable 
for the suberect fruiting pedicels. — Augustin Ley. 
G. sylvestre, Poll., v. hirtum, Koch. Above Andover ford. East 
Gloucester, July 1900. New county record for 33. — G. C. Druce. 
Valerianella carinata, Loisel. Gathered in Glyn Neath, vice- 
county 41, on a wall, June 1902. I also enclose some ripe fruit from 
exactly the same situation, gathered later in the season. New county 
record for Glamorganshire. — H. J. Riddelsdell. 
Aster Tripolium, L., var. discoidea. Salt marsh near Hunstanton, 
West Norfolk, ist September 1902. With these plants occurred a 
form intermediate in character, a few ligulate florets being noticeable. 
Major Wolley-Dod has noticed that this is particularly the case when 
the plants are liable to be covered at high tide»; I’he Hunstanton 
plants appeared to be a long distance from tidal influence. — A. B. 
Jackson. 
Xanthium spinosum, L. Alien. On waste ground near Linacre, 
South Lancashire (59), 2nd October 1902. The Bootle locality from 
whence I sent specimens on a previous occasion has been destroyed 
by “improvements.” — J. A. Wheldon. 
Ambrosia artemisieefolia, L. In rough places in the sandhills off" St. 
Thomas’s Road, St. Anne’s-on-the-Sea, West Lancashire, 23rd August 
1902. I have posted to the members a copy of a short paper contri- 
buted to the ‘ Memoirs of the Manchester Literary and Philosophical 
Society,’ vol. xlvii. (1902), No. 2, and entitled “On the Adven- 
titious Vegetation of the Sandhills of St. Anne’s-on-the-Sea, North 
Lancashire,” from which the following remarks are condensed ; — A 
curious arrangement of the flowers of this species at one time led me 
to think that the plant was dioecious, because spikes bearing con* 
