16 CRUCIFER^E. 



Moricandia arvensis, DC. 6. '* Falmouth Docks, Bullmore " 

 (Flora). Seen there in 1911, Davey. 



Gapsella Bursa-pastoris, Medic. (Bursa Pastoris, Weber) . 

 See "Studies by Ernst Almquist," with introduction by G. C. 

 Druce," B.E.C., 1920, pp. 779-207. 



Coronopus didymus, Sm. 



2. Pillaton and Millbrook, Hawk, R.I.C., /9//, p. 376. 



3. Charlestown, Tresidder. 



6. Veryan, 1913, Thurston. 



8. Pra Sands, 1911, Davey. Gulval; Madron, 1913, Miss M. 

 Cobbe. 



C. p roc urn bens, Gilib. 



1. Boscastle, 1915, Thurston. 



7. Poltesco, 1914, Thurston. 



Lepidium ruderale, Linn. 



1 . Railway Station, Launceston. Shown to E. Thurston by 

 W. Wise, 1915. 



3. Charlestown Harbour, Tresidder. 



6. ** Falmouth " (Flora). Fowl-run, Falmouth Docks, 1917, 

 Thurston. 



*L. neglectum. Thell. Bull. Herb. Boissier, IV. 708. Alien. 



North America. 

 3. Par Harbour, 1912, Vigurs, B.E.C., 1914, p. 61. 



5. Rialton Mill, St. Columb Minor, 1915, Vigurs. 



6. Waste-heap, Penryn, 1921, Tresidder. 



* This newly described species so resembles L. ruderale as to 

 make it desirable for members to carefully examine their 

 herbarium specimens. . . . The chief mark of distinction 

 is (as Dointed out by Mr. C. E. Salmon, Journ. Bot., 164, 1911) 

 that the seed of L,. neglectum is more orbicular, and is sur- 

 rounded by a winged margin.'* B.E.C., 1911 , pp. 9-10. 



L. sativum, Linn. 



3. Looe dust-heaps; Porthallow, Talland, Mrs. and H. M. M. 

 Perrycoste. 



