84 



Wheldon : Tlic North of England Harpidia, 



Forma montana Ren. Stems rig-id, much divided, rather 

 short and stout, the divisions irregularly pinnate. Deep fuscous 

 brown, the very strongly-hooked tips of the stems and branches 

 only being of a yellowish green. Leaves very strongly falcate 

 throughout, at the apices almost circinate, firm in texture from 

 a broadly-ovate base, suddenly narrowed above to a long, invo- 

 lute recurved point. Nerve strong, from a very broad base, 

 prolonged into the commencement of the acumen. 



This form, of which I have seen no description, has a well- 

 marked facies, recalling some forms of Hypnum revolvens. In 

 its very strong nerve and rather shorter cells, it approaches the 

 var. brachydictyon, but the general habit and shape of the leaves 

 are quite different. 



8. Hulland Moss (57), W, R. Linton ! 



9. Walton Bog (58), W. Wilson ! ex herb. E. C. Horrell. 

 Hale Moss (58), Cook and Whitehead ! ! 



10. Denton Moor, Ilkley (64), A. Wilson ! Saltonstall Moor, 

 Halifax (63), Crossland ! Near Cronkley, Teesdale (65), 

 Wheldon ! 



Forma polyclada Ren. MS. Growing in large, densely- 

 compact cushions, of a glossy golden-green colour above, pale 

 fuscescent below. Stems rather robust, several times divided, 

 the divisions densely ramose, with crowded, erect, not bifarious 

 branches, which are usually falcate, and strongly hooked at the 

 extremities. Leaves, lower narrowly lanceolate, upper from an 

 ovate base gradually contracted into a long, slender recurved 

 acumen, margin serrulate below, subentire above. Auricles 

 very distinct, of inflated cells, sometimes extending to the nerve, 

 which latter is often tinged with orang'e-red on the line of 

 insertion, the coloration being confined to the extreme base and 

 middle, and is rarely, but sometimes faintly, traceable in the 

 auricles. The walls of the auricular cells in the upper leaves 

 are thin and hyaline, in the lower a little incrassate, and occa- 

 sionally yellowish. Habit very distinct, both as regards the 

 large cushions in which it grows, the golden colour, the method 

 of branching and the very silk}- texture. It is intermediate 

 between vars. pinnatum and purpurascens. 



8. Umberlev Brook, Chatsworth (57), W. R. Linton ! 



9. Mallowdale Fell (60), W T heldon and A. Wilson ! ! Gavell's 

 Clough and Tarnbrook Fell, Wyresdale (60), A. Wilson ! 



T2. [Barbon Fell (09), E. D. Marquand and C. H. Waddell ! 

 This was not quite typical. | 



Naturalisi, 



