8 THE FLORA OF HALIFAX. 



1839. Skircoat. — Herb. S.K. 



The only record, and though the rocks and sandy ground 

 about Woodhouse Scar in Skircoat would afford a suit- 

 able habitat, there is but little doubt that it is now 

 extinct there. It might, however, still be found in simi- 

 lar situations. 



Cochlearia officinalis, L. — 82. Scurvy Grass. 

 Casual. British type. P. June-July. 

 1S90-92. Calderside, Elland. Fairly plentiful at first, 

 but diminishing afterwards till none was found in 1893. 

 M. M. Buckley. 



It is not known whether this was a sporadic case of C. 

 alpina occurring in the Calder basin, or simply an intro- 

 duction with grain. 



Cochlearia Armoracia, L. Horse-radish. 

 Alien, or Denizen. P. June. 



1775. A rare plant hereabouts; only in the Pighill mea- 

 dows in Skircoat. — J.B. 



Infrequent, in waste ground, field corners and river banks, 

 as Old Wheatley corn mill, Calder side near Tag lock, 

 Holmfield, &c. 



Hesperis matronalis, L. Dame's Violet. 

 Alien. P. June-July. 



1843. In Hollins Wood, Warley. The outcast of a gar- 

 den. — Herb. S.K. 



1862. Formerly plentiful in Hollins Wood, Luddenden. — 

 S. King in MialVs Flora. 



1891. Sterne Mill, a garden escape. 



Sisymbrium Thalianum, J. Gay. — 99. Thale -cress. 



Native. British type. A. May-September. 

 1841. Well Head.— Herb. S.K. 

 1862. Skircoat Moor. — MialVs Flora. 

 Rare, on dry banks : on the railway bank at Wheatley 



(1895). 



Sisymbrium officinale, Scop. — no. Hedge Mustard. 

 Native. British type. A. June-September. 



1867. Roadsides at Salterhebble and North Dean.— J.W. 

 Infrequent, on roadsides and waste ground : Skircoat, 

 Sterne Mill, Copley, Tag lock, Wheatley. 



