THE FLORA OF HALIFAX. 41 



1837. Pennant's Clough, near Todmorden. — Herb. Leyland. 



1838. Binn Royd Clough, Norland. — Herb. King, and LeyU 



Rare : only observed recently in marshy ground at Higher 

 Greenwood, in the Hebden valley. 



Ribes Grossularia, L. Gooseberry. 



Denizen or Alien. Intermediate type. Shrub. April-May. 



Banks of the Calder, &c, not wild. — Herb. Leyland. 



Occasionally found in places where it is probably bird-sown : 

 Elland Park Wood, Hippings Clough, Stansfield, &c. 



CRASSULACE^l. 



Cotyledon Umbilicus, L. — 54. Navelwort. 

 Denizen. Atlantic type. P. June-July. 



1819. At Lower Cragg, near Mytholmroyd. — Herb. Leyland. 



1835. Lane House, Luddenden.— Herb. S.K. 



1840. On the roadside near Old House, Sowerby, &c. — 

 Baines' Flo. 



1862. Near Lane House and Owlet Cote in Midgley ; 



Holme House, near Warley (C. Eastwood) ; Greetland. — 



MialW Flo. 

 1867. Old wall, top of Luddenden Valley. — /. Walker. 



1877. About Catholes Dam, Harley Wood near Todmor- 

 den, probably planted. — A. Stansfield. 



1888. Cragg Valley, Mytholmroyd.— F. A. Lees. 



Though the stations recorded are rather numerous, it is not 

 generally held to be a native. Still at Jowler, in the 

 Luddenden Valley, on the Warley side, and previous to 

 the severe winter of 1894-5, it grew at Cat-i'-th' Well, but 

 suspiciously near the garden. 



Sedum acre, L.— 107. Stonecrop. 



Native ? British type. P. June-July. 

 1845. White Hill end, near Hebden Bridge. — Herb. S.K. 

 Infrequent on walls, &c, but, except where it is planted 



about cottages, it is rarely seen and is more like a casual 



escape than a native. Like Erophila vulgaris, it seems to 



disappear near manufacturing towns. 



Sempervivum tectorum, L. Housleek. 

 Alien. P. July. 



