442 .. 99. PiLioES, 



exactly like Bolton's t. 30. N. Wales ! Cumberland. Nor- 

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



16. Htmenophxi'ltjm Sm. Pilmy-Fem. 



1. H, tnnbridgen'se (Sm.) ; fronds pinnate, pinnsB disticioua, 

 segments linear imdivided or Wfid spinously-serrate, mvohicre 

 compressed spinousiy-gerrate, rachis broadly winged. — E. B. 162, 

 N. 321. — Slender, delicate and small. Rhizome very long, 

 threadshaped. PinnEB, rachis, and involucres in the same plane. 

 Valves of the involucre adpressed throughout the greater part 

 of their leng-th, slightly gibbous at the base. — Amongst moss in 

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



2. H. Wilsdni (Hook.) ; fronds pinnate, pinnte recurved, seg- 

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

 flated entire, rachis slightly bordered. — E. B. S. 2686. — Resem- 

 bling the preceding, but the pinnse 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. E. S. I, 



Suborder II. Osmundacem. Tribe VI. Osmundea. 



17. Osmtjn'iia Idnn. Plowering-Fern. 



1. 0. regdlis (L.); fronds bipinnate, pinnules oblong nearly 

 entire dilated and slightly auricled at the base, clusters panicled 

 terminal. — E. B. 509. N. 331. — Fronds erect or drooping, 1 — 8 

 feet high.— Boggy places. P. VII.— IX. E. S. I. 



Subord. III. Ophioglossacea. Tr. VII. Ophioglossees. 



1 8. Botetch'itjm Sw. Moon- wort. 



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

 fanshaped notched or crenate. — jE. B. 318. N. 137. — Height 

 ■3 — 6 in. Pinnse with veins radiatino; from the petiole, some- 

 times deeply notched. Fronds usually solitary, but sometimes 

 two on the same stalk. — Pastures. P. VI. Vll. E. S. I. 



[B. rutdceum (Sw.) ; frond triangular-rhomboidal pinnatifid 

 solitary, pinnae 7 — 9 linear incise-serrate decreasing upwards. 

 — N. ed. 3. 832. — Veins not radiating. The species is doubtful. 

 —Sands of Barry, Forfar. P. VIII. | S. 



19. Ophioglos'sum Linn. Adder's-tongue. 



1. 0. fulflutum (L.) ; frond ovate blunt. — E. B. 108. N. 349, 

 —Height 4 — 12 in. erect. Spike clubshaped, usually rather 



