IOO THE FLORA OF HALIFAX. 



1867. Decayed and hollow trunk in front of Scout Hall, 

 (Shibden). The churchyard at Ripponden is planted 

 round with about eighty yew trees, trimmed in the shape 

 of funeral plumes. — /. Walker. 



The finest specimens are at Midgehole and Mytholm, 

 Hebden Bridge. Heywood's yews are gone. 

 Pinus sylvestris, L. — 17. Scotch Fir. 



Alien. Highland type. Tree. April-May. 



1840. Halifax.—/?^. S. King. 



1867. Commonly met with in plantations. — /. Walker. 



A planted tree, but not very common (because it is soon 

 killed by smoke near the towns), except in the woods 

 in the Hebden Valley, which are rich in conifers. 



HYDROCHARIDE^ 



Elodea canadensis, Michx. Canadian Pondweed. 

 Denizen. British type. P. June-September. 

 The absence of any previous record prevents an accurate 

 estimate of the date of its arrival here, but judging from 

 negative evidence, it cannot have been much earlier than 

 1870. It is now common in the canal, ponds and mill- 

 dams in the valley bottom; also in "Walton's Pond," 

 near Park Nook, Southowram ; and in the dam at Grove 

 Mills, Ovenden. 



ORCHIDE-ffil. 



Neottia Nidus-Avis, Rich. — 86. Bird's-nest Orchid 



Native. British type. P. June-July. 

 1878. Hareley Wood, Todmorden. — Davis and Lees' West 



Yorks. [Stansfield ; Lees' Flora. 



1888. Below Rag Scout, Harley Wood, Todmorden. — A. 

 Very rare, in woods; the only additional record has been 



Sun Wood, LightclifTe (1898). 



Listera cordata, R. Br. — 58. Least T way-blade. 



Native. Scottish type. P. ' June- July. 

 1775. Upon a moor in Bradshaw, near to where they get 



clay for pipes, along with Trientalis ; also on some rotten 



mossy places towards the top of Rish worth Moor. — /. 



Bolton. 

 1823. Robin Hood Bed; 1834, in a wood near Lumb Mill 



(Hebden Bridge) ; Widdop. —Herb. Gibson. 



