LONDON BOTANICAL EXCHANGE CLUB. 15 
Exotic and Introduced Species. 
Lepidium perfoliatum, L. Gloucester. Dr. St. Brody. 
Camelina sativa, Crantz ; C. fætida, Fries; C. sylvestris, Fries. The 
first abundant, the two latter sparingly, in waste ground, near the 
docks, Gloucester. Dr. St. Brody. 
Erysimum repandum, L. Gloucester. Dr. St. Brody. 
Sisymbrium Trio, L. Oxford, by the Cherwell. W. T. Dye 
Agrostemma coronaria, L. On a rock, by the canal, Lisarodiati 
Montgomeryshire. C. E. Parker. 
Impatiens parviflora, De Cand. An ineradicable weed in the Oxford 
Botanic Gardens. W. T. Dyer. 
Vicia villosa, L. Gloucester. Dr. St. Brody. 
Œnothera biennis, L. Railway banks, St. Vincent’s Rocks, Bristol. 
Dr. St. Brody. 
Claytonia alsinoides, Nutt. In great abundance in a wood at Ince, 
Cheshire. J. T. Robinson. 
C. perfoliata, Don. Stowmarket, Suffolk. C. E. Parker. 
Carum Carui, L. Gloucester. Dr. St. Brody. 
Anthriscus Cerefolium, Hoffm. Oxford. W. T. Dye 
* Hieracium amplexicaule, L. This is stated by Mr. Syme to be 
“naturalized on Magdalen College walls, Oxford." Mr. Dyer and Mr. 
Boswell both send specimens. It has been cultivated in the Botanic 
Gardens, and, like many other plants there, is now left to itself, and 
comes up every year on the old garden walls, but does not spread. 
Centaurea Jacea, L. Meadow at Twickenham, Middlesex. W. T. 
Dyer. The forms a. genuina, and f. vulgaris, of Koch, are both found 
there, 
C. Melitensis, L. Gloucester, not uncommon. Dr. St. Brody. 
Xanthium spinosum, L. Hereford. 
Cuscuta Hassiaca, Pfeif. On Biens near - Cuiibridge Railway Sta- 
tion. H. E. Fox and M. A. Lawson. 
Echinospermum Lappula, Lehm. Docks, Gloucester. Dr. St. 
rody, 
Chenopodium opulifolium, Schrad. Apperton, Middlesex. Dr. Tri- 
men 
itera glauca, Beauv., and Panicum capillare, Retz. Gloucester. 
Dr. St. Brody. 
Sclerochloa dura, Beauv. Ballast, Hartlepool. M. A. Lawson. 
