86 Wheldon : The North of England Harfiidia. 



rather shorter, but always reaching high in the acumen. Reti- 

 culation denser than in var. pinnatum, cells much narrower and 

 longer, vermicular. Auricles very distinct, of large oblong- 

 elongated cells, the outermost incurved, often arranged in 

 a sing-le series, their walls frequently incrassate and coloured. 

 (See fig. 4, p. 91.) 



Var. falcifolium Ren. Usually more or less purplish or 

 brownish, mixed with green. Tufts submerged. Stems 5-10 

 cm. or longer, pinnate. Leaves falcate above, suberect flexuose 

 below, rather lax, lanceolate, narrowed to a long, often spirally- 

 twisted, distantly-dentate acumen. Nerve lost in the acumen 

 or reaching the point, but not distinctly excurrent. Cells very 

 long and narrow. Auricles of the group. 



The name stenophyllum Wils., having been applied generally 

 to plants of this group, is, in the absence of original specimens* 

 abandoned by Mons. Renauld. 



I have received a plant from Mr. Horrell labelled ' Hypuimi 

 stenophyllum Wils., teste W. Wilson, Strensall Common, May 

 1859. Coll. W. Wilson. Ex herb. Mus. Brit.' This differs in 

 very few respects from the var. pinnatum Boul., and is no doubt 

 a state of that. The nerve is by no means long, the auricles 

 are those of the last group rather than this, and the cells too 

 short for the Group Rotce as now understood. 



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



9. Hale Moss (58), W. Wilson. Simmonswood Moss (59), 

 Marrat. Martin Mere, near Southport (59), WTheldon ! St. 

 Anne's (60), Wheldon ! Between Greenbank and Dolphinholme 

 (60), WTheldon ! ! Marsham (60), A. Wilson. Catforth (60), 

 H. Beesley ! 



10. Pilmoor (62), Ingham! Strensall Common, 1859 (62), 

 W. Wilson ! Sandburn Common (62), W T heldon ! Skipwith 

 Common (61), Ingham and Waddell. Denton Moor, near 

 Ilkley (63), A. Wilson ! 



Forma viridis Boul. Green. Stems floating, more elongate 

 and slender, slightly divided, a few short, pinnately-arranged 

 branches in the upper part of the stem. Leaves very long, 

 generally less crowded, the upper circinate, secund, rather dense, 

 the lower flexuose, falcate-spreading, laxer. Cells of the auricles 

 with walls hardly, or only slightly, incrassate. 



9. Near the Marshaw Wyre, above Marshaw (60), A. Wilson. 

 10. Greenfield (63), W T heldon ! ! 1 Bien caracterize,' Ren. 



Forma / nun data Ren. Tufts deep, green above, brown 

 below. Stems immersed, erect, elongated, regularly pinnate. 



Naturalist, 



