an 
5 LEES, FARRAH, AND MILLWARD: THE NIDDERDALE FLORA. 
in Paris guadrifolia where the four floral leaves are five, six, or 
even eight in number—were seen in Nidd-rock wood where 
a quarry used to be, with four leaves instead of the two implied 
in the name Twayblade; and singular from the teratologic 
view-point, al/ the four leaves were produced from the junction 
of stem and flower-spike on the same plane. It is difficult to 
see how this can have been so morphologically, but the interval 
between the opposite pairs was inappreciable, although the 
plants were stout and well-grown. 
Myriophyllum alterniflorum. Blythe Nook brickponds. Also 
in Oak-beck, below the Sewage Farm, in the running water, 
this last being the ‘MZ. verttcillatum’ of Farrah’s ‘Flora of 
Harrogate’ in Thorpe’s Guide of 18091. 
Triodia decumbens. Fields near Blythe Nook, Harrogate ; and 
near Hill-top, Walkingham, in Yore area. 
Hippocrepis comosa. One flowerless decumbent plant, in habit 
and leaf-rosette, apparently this species, in a stony pasture on 
Hill-top farm between Brearton and Walkingham hill. In the 
Yore district; but being so far away from the river (it grows by 
the Yore at Aysgarth) and on drift overlying Permian strata—on 
which it has not previously been observed—it is difficult to see 
how it has got to where it is. If further observation should 
establish the fact, in greater quantity, it will be an important 
addition to our knowledge of distribution. 
Viburnum Lantana.* Hedge by footpath at top of cliff at 
Knaresborough, near St. Robert’s Chapel. Probably planted. 
Near it, over the hedge, as escapes (naturalised) grow Centran- 
thus ruber, Reseda alba, and Rumex scutatus, on the shelvings 
of the lime-rock at ‘Fort Montagu.’ 
Silene nutans L. The Nottingham Catchfly. The occurrence 
still of this rare species at Knaresborough (questioned in ‘ Flora 
of West Yorkshire,’ and re-asserted by Rev. W. C. Hey in the 
‘ Naturalist’ of Nov. 1888), has been satisfactorily confirmed 
at last. The original locality ‘rocks on the Abbey plain’ 
(Archd. Pierson, 1782), was varied in Hargrove’s ‘ History of 
Knaresborough ’ (ed. of 1832), to ‘shelvings of the rock near 
the Rock House.’ Why, is not clear; but the Catchfly does 
not grow now on the rocks by the Rock House (St. Robert’s 
Chapel and Fort Montagu); whilst, per contra, a minute search, 
recently, all along the cliff, revealed its characteristic tufts and 
seeded stems on the grass-covered talus below the lower cliffs, 
over the Abbey plain ; i.e. one-third of a mile towards Grimbald 
Bridge from the Robert’s Chapel. It grows for some fifty or 
