Wheldon : The North of England Harpidia. 



79 



more robust, less compactly tufted, with larg-er and broader 

 leaves, and subpinnate branches. 



g. Cockerham Moss, in deep cutting" in the peat (60), 

 Wheldon and A. Wilson ! ! 



Var. gracile Boul. Tufts soft, green. Stems slender, 

 gracile, slightly branched. Leaves distant, erect patent below, 

 falcate-secund above, narrow, contracted at the base, with 

 a long slender, sometimes filiform, acumen, which is denticulate 

 or strongly dentate. Nerve thin, reaching a little beyond 

 the middle. Auricles ill defined, their cells slightly swollen. 

 Although often bright green when growing, it soon fades, 

 and old herbarium specimens are usually more or less pale 

 fuscous yellow. Ascends from sea level to over 2,000 feet in 

 Lancashire and Yorkshire. Distinguished from the var. Jean- 

 bernati by its narrower, more lanceolate leaves, with more 

 slender points. A small-leaved form with more falcate leaves 

 (forma abbreviata Ren.) occurs on Greygarth Fell and Ingle- 

 borough. 



Another remarkable form with decurrent leaves occurs on 

 Greygarth Fell which may merit description after further 

 observation. 



9. Pendle Hill (59), Wheldon ! Longridge Fell (60), Whel- 

 don ! ! Greygarth Fell, Botton Head Fell, and Whiteray Fell 

 (60), A. Wilson ! ! Cockerham Moss (60), Wheldon and A. 

 Wilson. Burn Moor (60), A. Wilson. 



10. Near Boltby (62), R. Barnes ! Ingleborough and Whern- 

 side (64), Wheldon ! Skipwith Common (61), Ingham!! Ilkley 

 Moor (63), A. Wilson. Beamsley Moor (63), A. Wilson. 



12. Potter Fell (69), Rev. C. H. Waddell. 



Forma laxifolia Ren. (H. adnncuni var. pseiido-fonta7inm 

 Sanio of Br. British Moss Flora). Pale yellowish green. Stems 

 elongated, floating, intricate, with very short branches or nearly 

 simple. Leaves falcate-secund above, more distant, flexuose 

 patent below, strongly denticulate, narrowly lanceolate, pro- 

 longed into an extremely long filiform twisted acumen. Basal 

 cells lax, angular rectangular, very decurrent as in var. sub- 

 mersum Schimp. 



It seems impossible to unite this with H. adimcum without 

 unduly straining all the characters of that plant. A comparison 

 with H. fluitans {timphibium) var. gracile Boul. will at once 

 make evident the fact that it is a deep-water form of that very 

 variable plant. 



9. Oakmere (58), Holt ! ! 



1902 March 3. 



