430 
99. fhices. 
exactly like Bolton's figure t. 30. South and Soutli-'west of 
Ireland. P. IX. X. E. I. 
16. HTMENOPHTL'Lrir Sm. Filmy-Fern. 
1. H. tunhridgcn'se (Sm.) ; fronds pinnate, pinnte distichous, 
segments linear imdivided or bifid spinosely-sen-ate, involucre 
compressed spinoscly-serrate, rachis broadly winged.—^. B. 1G2. 
iV! 321. — Slender, delicate and small. Rhizome very long, 
threadshaped. Pinnm, 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. E. S. I. 
2. //. Wihoni (Hook.) ; fronds pinnate, pinnae recm-ved, seg- 
ments linear undivided or bifid spinosely-serrate, involucre in- 
flated entire, rachis slightly bordered. — E. B. S. 2686. — Resem- 
bling the preceding, but the pinnae cuiTe backwards and the 
involucres fom^ards. Valves of the involucre convex or gibbous 
throughout, touching only by their edges which are quite entire. 
— .\mongst moss in damp and shady places. P. \T[. E. S. I. 
Suborder 11. Osmundacem. Tribe VI. Osmundea. 
17. Osmitn'da Linn. Flowering- Fern. 
1. O. regulis (L.) ; fronds bipinnate, pinnules oblong nearly 
entire dilated and slightly am-icled at the base, clusters panicled 
terminal. — E.B. 209. N. 331. — Fronds erect or drooping, 1 — 8 
feet high.— Boggy places. -P. VII.— IX. E. S. I. 
Subord. III. Ophioglossacete. Tr. VII. Ophioglossea. 
18. Botbtch'ium Sw. Moon-wort. 
1. B. Lundria (Sw.) ; frond pinnate solitary, pinnae lunate or 
fanshaped notched or creuate. — E. B. 318. N. 137. — Height 
3 — 6 in. Pinnae with veins radiating from the petiole, some- 
times deeply notched. Fronds usually solitary, but sometimes 
two on the same stalk. — Pastures. P. VI. VII. E. S. I. 
\^B. rutdceiim (Sw.) ; frond triangiUar-rhomboidal pinnatifid 
solitary, pinnae 7 — 9 linear incise-sen-ate decreasing upwards. 
— N. ed. 3. 322. — Veins not radiating. The species is doubtful. 
—Sands of Barry, Forfar. P. VIU.] S. 
19. Ophioglos'sum Linn. Adder's-tongue. 
1. 0. vulgdtum (L.) ; frond ovate blunt.- jE^. B. 108. N. 349. 
