199 



SOME HALIFAX BRAMBLES. 



W. B. CRUMP, M.A, 



Incidentally in the course of a detailed survey of the vege- 

 tation of Broadhead, or Bell Hole, near Mytholmroyd, I col- 

 lected a number of specimens of fruticose brambles, both in 

 1905 and 1906. These I submitted for identification to the 

 Rev. W. Moyle Rogers, who kindly named them. It seems 

 desirable to publish the list now, as it may be some time before 

 the main investigation is completed, and one or two of the 

 brambles furnish new county records. 



Broadhead is a small, round-headed valley, about a mile 

 from Mytholmroyd, up Cragg Vale. Several head streams 

 draining Erringden Moor meet in Broadhead, and owing tO' 

 the prevalence of shales (of the Middle Grits) have formed a 

 cirque-like depression. This is occupied either by a heath 

 association of heather-bilberry-bracken, or by Jimcus and 

 Sphagnum swamps, or by birch scrub, or hawthorn scrub, or 

 by oak-birch wood (Spring Wood). The 1000 feet contour 

 line is the upward limit of the depression. Below about 550 

 feet, the stream course (Parrock Clough) is much like the usual 

 type of clough, until in half a mile it joins Cragg Brook, near 

 Dauber Bridge, 



In the following list some attempt is made to indicate 

 tentatively the actual associations to which the various species 

 appear to belong, though wider experience may modify the 

 conclusions. Any quotations are from the comments of Mr. 

 Rogers, to whom I am much indebted, for without his aid, the 

 list would not be in existence. 



1. — Ruhus fissus Lindb. A sub-erect bramble found in 

 several places in the bracken, or bracken-bilberry area of 

 Broadhead. In and about the Jimcus swamp in Spring Wood 

 ' a form with exceptionally small, narrow leaflets ' is abundant. 



2. — Ruhus plicatus Wh. and N. In Spring Wood, dry area. 



3. — Ruhus Lindleianus Lees. On a bank, meadow-side, 

 near Dauber Bridge. 



4. — Ruhus rhamnifolius Wh. & N. Only one example was 

 gathered from the bilberry-heather association, which Rev. 

 W. Moyle Rogers places under R. rhamnifolius Wh. & N. 

 sp. coll., and describes as ' a small form connecting type with 

 sub-species Bakeri F. A. Lees.' 



1908 June I. 



