Wheldon : The North of England Harpidia. 



Yar. Jeanbernati Ren. (var. pcilndosnm Sanio). The name 

 Jeanbernati of Renauld (1879) takes priority over that of 

 pciludosnm Sanio (1880), having been published a year earlier. 

 Monoicous. Pale green above, sometimes pale reddish-brown 

 below, slender, very little branched, loosely floating, or rather 

 compactly tufted, forming depressed mats when the pools are 

 partially dried in summer. Leaves rather distant, terminal 

 falcate-secund, loosely appressed or feebly secund below, some- 

 times slightly spreading towards the base, narrow, oblong 

 lanceolate, sinuolate denticulate, sometimes distantly dentate 

 above, narrowed to. a short acuminate point, which is sometimes 

 wide, but occasionally narrower. Nerve narrow, reaching about 

 two-thirds. Upper cells very long, those of the angles little 

 dilated, forming very obscurely-defined auricles. 



9. Woolston Moss (58), W. Wilson ! Ex herb. E. C. Horrell, 

 Hale Moss (58), Whitehead ! ! Abbotts Moss (58), Holt!! 

 White Moss, Hindburn ; and Harris End Fell (60), A. Wilson 

 and \yheldon ! ! Bleasdale Fell and Marshaw (60), A. Wilson ! 

 Greenbank Fell and Greygarth Fell (60),' A. Wilson and Wheldon ! 



10. Skipwith Common (61), Ingham !;! Gibslack Moor, near 

 Wadsworth (63), Needham and Crossland ! Whernside (64), 

 H. N. Dixon. 



Forma tenella Ren. Muse. Gall., 1894 (var. tenellum Ren. 

 Glass. Harpid. in Revue Bryolog., 188 1). Stems very slender, 

 flexuose, filiform. Leaves distant, small, patent, divaricate, 

 narrowly lanceolate. Bears the same relation to var. Jeanbernati 

 that forma gracilis does to H. aduncum (pseudo-Jlnitans) var. 

 paternum, and is sometimes mixed with the first-named. It was 

 placed by Sanio under H. aduncum psendo-fontanum. 



9. Bleasdale Fell, near Calder Vale, and Harris End Fell, 

 (60), Wheldon and A. Wilson ! 



10. Skipwith Common, W. Ingham ! 



Forma Holleri (Sanio) Ren. Pale green, in depressed 

 patches. Tufts rather dense. Stems slender, flexuose, slightly 

 and irregularly branched. Leaves distant, flexuose, spreading 

 slightly, lanceolate, finely acuminate, slightly denticulate or sub- 

 entire. Nerve weak and little exceeding the middle. Cells 

 shorter. Angular cells smaller and auricles almost obsolete. 

 This is the H. fluita?is [obsoletuni) var. Holleri Sanio, but Mons. 

 Renauld has recently come to the conclusion, already hinted at 

 in his monograph, that it is only a state of his var. Jeanbernati. 

 Having, had many opportunities of seeing the two plants grow- 

 ing, I have no hesitation in accepting this conclusion, and 



1902 March 3. 



