416 99. FILICES. 
13. Apiantum Linn. Maiden-hair. 
1. A. Capillus-Veneris (L.); frond irregular, branches and 
roundish-wedgeshaped lobed thin pinnules alternate, lobes of the 
fertile pinnules terminated by a transversely linear-oblong re- 
flexed lobe covering several roundish sori, sterile lobes serrated. 
—E. B. 1564. N. 83.—Rhizome blackish, shaggy. Fronds 
6—12 in. high. Stipes and rachis slender, nearly black. Pin- 
nules not jomted to the partial stalks—Damp rocks near the 
sea. P. V.—IX. 
Subord. II. Hymenophyllacee. Tr. V. Hymenophyllee. 
14. TricHomManes Linn. 
1. T. radicans (Sw.); fronds 3 or 4 times pinnatifid glabrous, 
segments uniform linear, imvolucres solitary im the axils of the 
upper segments, seta at first included ultimately very prominent. 
—E£. B. 1417. T. speciosum Willd., N. 305.—The frond in fact 
consists of hard wiry branched ribs each furnished throughout 
with a rather membranous wing. Rhizome black, downy, very 
long. Fronds rather triangular, very much divided, 4—8 in. 
long. Involucres scarcely winged.—f. Andrewsii (Newm.); 
fronds lanceolate, involucres winged. N.315.—Very damp shady 
places. Rare. Formerly at Bellbank, Yorkshire, from whence 
I have an old specimen exactly like Bolton’s figure t. 30. South 
and south-west of Ireland. P. IX. X. E. I. 
15. HymMEenopHyLium Sm. 
1. H. tunbridgense (Sm.); fronds pinnate, pine distichous, 
segments linear undivided or bifid spinosely-serrate, involucre 
compressed spinosely serrate, rachis broadly winged.—E. B. 162. 
N. 321.—Slender and delicate. Rhizome very long, threadshaped. 
Pinne, rachis and involucres in the same plane. Valves of the 
involucre adpressed throughout the greater part of their length, 
slightly gibbous at the base.—Amongst moss in damp and shady 
places. P. VII. 
2. H. Wilsont (Hook.); fronds pinnate, pinne recurved, seg- 
ments linear undivided or bifid spinosely-serrate, involucre in- 
flated entire, rachis slightly bordered.—L. B. S. 2686.—Resem- 
bling the preceding, but the pinne curve backwards and the 
involucres forwards. Valves of the involucre convex or gibbous 
throughout, touching only by their edges which are quite entire. 
Amongst moss in damp and shady places. P. VII. 
