244 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 



S. Marshall. "This plant may be, as Mr White suggests, M.falcata 

 X sativa, though it cannot be very far from falcata itself, of which it 

 has a general appearance, excepting the non-falcate pods — however, 

 ripe pods are necessary to show this feature." — C. E. Salmon. "This 

 is M. falcata, L. (not M. media, Pers.)" — A. Thellung. 



Medicago minima, Desr. Sewage tip, near Bradford, v.-c. 64, 

 July 11, 1912. This was the dominant Medicago this past season. 

 The others present in less abundance being M. denticulata, Willd., 

 also var. apiculata, Willd., M. arahica, Huds., M. lappacea, Desr., 

 M, laciiiiata, Mill., and M. trihuloides, Desr. Wool introductions.— 

 J. Cryer. "Dr Thellung suggests comparing it with var. recta 

 (Desf.), Burnat."~G. C. Druce. 



Medicago laciniata. Mill. Sewage farm, near Bradford, v.-c. 64, 

 July 11, 1912. In abundance. — J. Cryer. 



Melilotus alba, Desr. Askham Ironworks, v.-c. 69, July 18, 1912. 

 I am unable to understand why the pods of this plant should be 

 described as acute and those of arvensis as obtuse. When removed 

 from the calyx these seem to me to be far more nearly circular in 

 outline than those of arvensis, and it would seem therefore more 

 obtuse. — D. LuMB. 



Melilotus arvensis, Wallr. Askham Ironworks, v.-c. 69, July 18, 

 1912. These plants were growing in sand which had been burnt 

 hundreds of times by molten iron. They reached a height of 7 ft., 

 and low down had a diameter of 4 to 5 feet. I think it must have 

 been the admixture of slag dust that had caused these plants to 

 flourish so exceedingly. The ' skeletons ' of the 1911 plants show 

 that some of them overtopped 8 feet ; this seems very remarkable, 

 seeing that the summer of 1911 was such an abnormally dry one. — 



D. LUMB. 



Trifolium repens, L. Waste ground, Askham, v.-c. 69, Aug. 9, 

 1912. — D. LuMB. "Yes, the form with foliaceous calyces called 

 var. phyllanthum, Seringe, in DC. Prod., ii., 199." — G. C. Druce. 



Lotus hispidus, Desf. Lancresse Common, Guernsey, Aug. 8, 

 1912.— W. C. Barton. 



Astragalus glycyphyllos, L. Wood side, Whatfield, W. Suffolk, 

 v.-c. 26, June 27, 1912.— G. C. Brown. 



Ornithopus pinnatus, Druce. In cart ruts, Lancresse Common, 

 Guernsey, Aug. 22, 1912.— W. C. Barton. 



