BOTANICAL. EXCHANGE CLUB. 
27 
H. Lapeiirousii; probably the former was the more mature judgment 
on Mr. Babington’s part, — it agrees with that of Mr. Backhouse, 
who has written H. Htrictum upon several specimens from the 
place collected by Dr. Dewar. There is a specimen collected at 
Inverarnan in August, 1847 ; the collector’s name is not given, 
but the writing is that of Professor J. H. Balfour ; it has been 
referred to H. denticulatum / by him, to H. strictum by Backhouse, 
and to H. rigidimi by some one else. There is another specimen 
having the label in the same writing, gathered at Killin in Jidy, 
1848 ; it has originally been referred to no species, but some one 
has afterwards added H. denticulatum, “Fries refers it now 
to H. strictum,'^ is further added. There is also a specimen from 
Inversnaid, labelled H. rigidum ; the writing is similar to that in 
the two foregoing, — the date illegible, the collector’s name absent. 
— Tom Drummond, Dec. 27, 18/6. — J. T. Boswell. 
Amhrusia artemisii folia, Linn. Waste spot in front of some 
cottages, on the western bank of the tidal Tamar, near Calstock 
Village, E. Cornwall. One large plant only. September 12, 1876. 
— T. E. Archer Briggs. “Ambrosia elatior, Bess.” Specimens 
from ballast-heaps, Birkenhead, August, 1875. Tolerably frequent 
there, but seldom attaining maturity ; being a conspicuous plant, 
it is destroyed by children. It has also been found by Miss E. 
Grundy at Parkfield, near Liverpool. — H. S. Fisher. This (Mr. 
Fisher’s plant) seems to me A. paniculata, Michaux, which 
Torrey and Gray consider a variety of A. artemisiifolia . — J. T. 
Boswell. 
Lrentiana Amarella, Linn., var. pratcox. Smith. Kiddlesdowns, 
near Croydon, Surrey, June 3, 1876. Sent, as although probably 
not rare when looked for, only recorded from Tring (as verna) and 
Lincoln. Scattered along a chalky bank, with Polygala, Lotus, &c. 
— A. Bennett. I have found spring-flowering plants of the allied 
species, G. cantpestris, in the neighbourhood of Plymouth. They 
have also been met Avith in the Isle of Wight. — T. E. A. B. 
Verhascwn Thapso-nigrum. Seaton, E. Cornwall, July, 1876. 
Six or seven plants, groAving with many of F. nigrum, with plants 
of F, Thapsns near. The intermediate examples agree well Avith 
the hybrid, as described in ‘ E. B.,’ ed. hi. ; in spikes and flowers 
looking much like nigrum, but with leaves conspicuously different 
in shape and outline, showing plainly the connection Avith Thapsus. 
It is remarkable that the only locality near Plymouth that produces 
V. nigrum also gives us the hybrid between it and Thapsus. I 
noticed one hybrid plant in the locahty so long ago as 1873. — 
T. E. A. B. 
Linaria Llatmc, Mill. Bean Field by the path from Thirsk to 
Woodend. Collected, July 29, 1876,by William Foggitt. Yorkshire, 
so far as ascertained, is the northern limit of this plant on the 
eastern side of the kingdom, and Denbigh on the western side. 
Mr. Baker, in his ‘ North Yorkshu-e,’ speaks of it as a plant 
of cultivated fields, and very rare.” Fie adds : “ It has been 
gathered l>y Mr. A. Moore near Thorp Arch, and by *]\Ir. Ibbotson 
in one of the fields above CaAvklees bank, near Nunnington ; and 
