454 100. FiLicES. 



Tribe V. Hymenophyllea. 

 15. Teichom'anes Linn. 



1. T. radicam (Sw.) ; fronds 3 or 4 times pinnatifid glabrous, 

 segments uniform linear, involucres solitary in tlie axUs of the 

 upper segments, receptacle at first included ultimately very pro- 

 minent.— JS'. B. 1417. T. speciosmn Willd., N. 305.— Fronds 

 rather triangular, very much divided, 4 — 8 in. long, formed of 

 hard wiry branched ribs each with a rather membranous wing. 

 Ehizome black, downy, very long. Involucres scarcely winged. 

 — The form called Andrewsii has lanceolate fronds and winged 

 involucres. N. 315. — Very damp shady places, rare. For- 

 merly at Bellbank, Yorkshire ! (exactly Bolton's t. 30). N. 

 Wales! Arran! (S.). Killarney! P. IX. X. E.S.I. 



16. HTMENOPHTL'LTrM Sin. Filmy-Fem. 



1. H. tunbridgen' se (Sm.) ; fronds pinnate, pinnae distichous, 

 segments linear undivided or bifld spinously-serrate, involucre 

 compressed spinously-serrate, rachis broadly winged. — E. B. 162. 

 H. F. 43. N. 321. — Slender, delicate and small. Rhizome very 

 long, threadshaped. Pinnae, rachis, and involucres in the same 

 plane. Inv.-valves adpressed throughout the greater part of 

 their length, slightly gibbous at the base. — Amongst moss in 

 damp and shady places. P. VII. E. S. I. 



2. S. Wilsdni (Hook.) ; fronds pinnate, pinnas recurved, seg- 

 ments linear undivided or bifid spinously-serrate, involucre in- 

 flated entire, rachis slightly bordered.—^. B. 8. 2686. H. F. 



44. H. umlaterale Bory ? — Resembling the preceding, but the 

 pinnae curve backwards and the involucres forwards. Inv.- 

 valves convex or gibbous throughout, touching only by their 

 edges which are quite entire. — Amongst moss in damp and 

 shady places. P. VII. E.S.I. 



Suborder II. Osmundacem. Tribe VI. Osmundem. 



17. Osmtot'da Linn. Flowering-Fern. 



1. O. regalis (L.) ; fronds bipinnate, pinnules oblong nearly 

 entire dilated and slightly auricled at the base, clusters panicled 

 tarminal.— .B. B. 209. H. F. 45. N. 331.— Fronds erect or 

 drooping, 1 — 8 feet high. — Boggy places. P. VII. — IX. E.S.I. 



Subord. III. Ophioglossaceoe. Tr. VII. Ophioglossea. 



18. Botkich'ium Sw. Moon-worL 

 1. B. Lundria (Sw.) ; frond pinnate solitary, pinnae lunate or 



