ON THE FLORA OF SOUTH BEDFORDSHIRE. 73 
P. dubium var. Lamottet.—Common in cornfields. 
P. Argemo ¢ L.—Local. Pepperstock ; Flitwick. 
oilonin majus L.—Local. Always near houses. Biseot; 
Stopsley; Heath and Reach. 
Corydalis claviculata L.—Loeal. Clophill Woods; King’s 
od. 
Fumaria Borai J ord. ; F, officinalis L. 
parviflora Lam m.—Rare. Chalky Fields, Barton 
a hanes Raphanistrum L, 
Sinapis arvensis L. 
Diplotaxis muralis DC. ey introduced.  Plentiful in 
1880, on Midland Railway at Leagr 
Sisymbri ium officinale eta S. Pilliaria Scop. 
Erysimum — cheiranthoides hii Poveigs sbandant near water. 
Greenfield; by the Lea, south of Luto 
: Hesperis matronalis L.—Woods, iii Hoo Park; ares 
plante 
Ca tea pratensis L.; C. hirsuta L. 
Arabis thaliana L. eal in salioenien fields. 
Barbarea vulgaris Br. PON Apion Luton; Flitwick. 
Nasturtium officinale B 
N. sylvestre Br. ae ay " Deodorizing Works, Luto 
N. palustre DC.—Local. Damp woods, south-east of Luton. 
. amphibium Br.—Rare. Banks of the River Lea, near Mill End. 
a verna Li. 
Camelina sativa L. ai 2 ual. Deodorizing Works, a 1879. 
Thlaspi arvense L.—Only observed as a casual, Deodorizing 
L 
Iberis amara L.—Locally pssst La esate fields, and near 
— holes on the lower chalk escarpm ‘ 
Capsella Bursa-pastoris Mench. 
Lepidium campestre Br.—Local. Sundon 
Reseda lutea Li.—In fields, on railway banks and waste places. 
— distributed over the chalk district. 
R. Luteola Li.—More local than the preceding. Abundant on 
the oe shi escarpment. 
Helianthemum —_— Gaert.—Common on dry grassy banks, 
especially on the chalk. 
Viola neat L.—Rare. Flitwick Marsh, about two miles 
from Abbot's station, ‘ Ampthill, ” where it is probably extinct. 
V. odorata L. 
V. hirta L.—Abundant over the chalk area, especially on th 
lower chalk escarpment. A variety, with elongated root-stocks, is 
abundant in woods south-east from Luton, and under beech trees 
by the New Mill End road. 
Ves Stee Fr., a. Riviniana.—More common than #3. Reichen- 
bachian 
V. canina L. —Loeal on sandy soil. Heath and Reach; Chiltern 
Green Common 
V. tricolor si —Fields on the Barton Hills. Var. 6. arvensis, 
—Common, 
