74 



Wheldon : The North of England Harpidia. 



setaceous acumen, and very small, badly-defined auricles. It 

 has not yet been detected in Britain. 



III. — H. Wilsoni Schimp. Variously classed by different 

 authors as a species or sub-species, sometimes under H. Sendt- 

 neri, at others under H. lycopodioides. If great weight is 

 attached to one or two minute structural details, e.g. , the more 

 or less porose basal cells and the thickness of their walls, it 

 might be subordinated to H. lycopodioides ; but if the general 

 habit, pinnate branching, more erect growth, and less-rugose 

 leaves are taken into account, it must be held in these parti- 

 culars to approach more nearly to H. Sendtfieri, with which, in 

 British specimens, it is much more easily confused. Grows in 

 robust, golden-yellow tufts, 6-12 in. long-, stems subsimple, 

 with distant pinnae, leaves rather more distantly placed, larger, 

 oblong- lanceolate, gradually tapering- to a long slender acumen, 

 concave, auricles less distinct, smaller, of fewer cells. 



8. North Somercotes (54), Rev. W. W. Mason ! "! 



9. Southport (locus classicus) (59), W. Wilson ! Also at 

 Ainsdale and Birkdale (59), W. Wilson ! It is still abundant in 

 these localities, Wheldon ! ! St. Anne's (60), Wheldon ! ! 



10. Strensall Common (62), Holt (Br. Moss Flora). 



Var. hamatum Schimp. Very robust and more closely and 

 regularly pinnate ; leaves larger and more regularly circinate, 

 with a very long acumen, more densely crowded. Auricles very 

 small. 



9. Ainsdale and Southport (59), Wheldon ! ! St. Anne's (60), 

 Wheldon ! ! 



Mons. Renauld refers specimens collected at Lough Neagh, 

 county Armagh, by the Rev. C. H. Waddell, to this variety, and 

 Mr. H. N. Dixon kindly sent me a specimen from Castlethorpe 

 (24) ! ! These appear to be the only British localities. 



IV. — H. lycopodioides Schwaegr. (H. adimcum 8 molle Sanio). 

 Dioicous. In large depressed patches, very soft, golden or 

 greenish yellow above, fuscous below. Stems little divided, 

 branched irregularly, branches scarcely pinnate, few, hardly 

 hooked. Stems really slender, but rendered very turgid-looking 

 by the crowded concave leaves. In this respect it resembles 

 H. scorpioides, but the tufts are never tinged with purple. It 

 occasionally gives off very slender shoots, which are liable to be 

 mistaken for H. Wilsoni. Leaves large, concave, secund-falcate, 

 oval or oblong, more or less rapidly narrowed to a long fine 

 acumen, slightly sulcate and rugulose when dry, entire, base 

 broadly and not deeply excavate, angles very slightly decurrent. 



Naturalist, 



