GISSING : FLORA OF WAKEFIELD. 



33 



Brassica. Linn. Cabbage, Rape. 

 B. Napus, L. Eape or Coleseed. B. April — July. Occasionally in waste 

 places : very doubtfully wild anywhere. 



SiNAPis. Linn. Mustard. 

 S. arvensis, L. "Wild Mustard or Charlock. A. April — August. Common. 



DiPLOTAXis. D.G. Eocket. 

 D. tenuifoUa,'D.C. Wall Rocket. P. June — October. Old walls at Pontefract. 



Raphanus. Linn. Radish, 

 i?. Rliaphani strum, L. Wild Radish. A. June — October. Frequent in 

 cornfields. 



Order— RESEDACE^. 

 Reseda. Linn. Dyer's Rocket. Mignionette. 

 R. Luteola, L. Common Dyer's Rocket or Yellow Weed. A. June — October. 

 Common. 



R. lutea, L. Wild Mignionette. A. June — October. On the limestone. 

 Common about Pontefract, Knottingley, &c. 



Order— CISTACE^. 

 Helianthemum. Tourn. Rock Rose. 

 H. vulgare, Gaert. Common Rock Rose. P. July — September. Kippax, 

 Garforth. 



Order— YIOLACE^. 

 Viola. Linn. Violet. 

 V. hirta, L. Hairy Violet. P. April — July. On the limestone. Abundant 

 about Wentbridge. 



V. odorata, L. Sweet Violet. P. March — May. Frequent. The wMU 

 variety is found at Chevet. A pink form is sometimes found. 



V. palustris, L. Marsh Violet. P. April — July. Lofthouse, Ackworth, Soot- 

 hill Wood. 



V. cani7ia, L. Dog Violet. P. March— July. Common. The hairiness of 

 this plant curiously varies. In the early state the leaves are quite 

 glabrous, but after flowering the older leaves are hairy on the upper 

 surface, and again when they are dying off the hair disappears. Some- 

 times there are hairs on one only of the lateral petals. 



V. tricolor, L. Pansy or Heart's Ease. A. June — October. Common in 

 cornfields. The variety arvensls is often found. 



Order— POLYGALACE^. 

 PoLYGALA. Linn. Milkwort. 



P. vulgaris, L. Common Milkwort. P. May — September. Frequent, 

 with pink, white, and blue flowers. 



