420 
99. FILICES. 
** Capsules icithoat an elastic ring. 
Suborder H. OSMUXDACKE. 
Young fronds circinate. Rachis woody. Capsules regulai-lr 
^-valved, stalked, in clusters at the extremity of the frond. 
Tr. VI. OSMUNDEJE. 
17. OsMUNDA. Capsules clustered, arranged in a branched 
spike terminating the fr'ond. 
Suborder HI. OPHIOGLOSSACE.E. 
Young fronds straight. Rachis succident. Capsules regidarly 
2-vaIve(i, sessile, in clusters on a separate branch of the frond. 
Tr. VII. OPHIOGLOSSEJE. 
18. BoTRYcmuM. Capsules distract, disposed in a com- 
pound spike attachea to a pinnate or bipinnate frond. 
19. Ophioglossum. Capsules connate, disposed iu a simple 
distichous spike attached to an imdi^dded frond. 
Suborder I. Polypodiacece. Tribe I. Polypodiece. 
1. Cetptogkaji'jee E. Br. Rock-brake. 
1. C. cris'pa (R. Br.) ; barren fronds 2 — 3-pinnate, leaflets 
wedgeshaped or linear-oblong often bifid at the end, leaflets of 
the fertile fronds oblong.— ^/fc«orMs Bernh., X. 103. Pteris Sm., 
£. B. 1160. — Fertile frond nearly triang-ular. ^'euls alternate, 
often forked and each branch ending in a cluster having no 
indusium but concealed by the reflexed edge of the leaflet. 
Height (3 — 12 in. St. slender, very brittle. — Amongst loose 
stones on mountains. P. \H. E. S. I. 
2. Polypo'dium Linn. Polypody. 
• Chtders at the end of a veinlet, other veinlefs knobbed at the end 
and not reaching the edge. Bhizome without fronds at its 
end. Ctkxoptekis Newm. 
1. P. vidgdre (L. ) ; fronds deeply pinnatifid, lobes linear-ob- 
long somewhat serrate all parallel upper ones gradually smaller. 
— E. B. 1149. N. 111. — ithizome brown, densely scaly, creep- 
ing. Fronds strapshaped. Clusters lai'ge, on the upper part of 
the frond. Lateral veins of the pinnre with 4 branches. Piimaj 
occasionally bifid at the end, sometimes deeply serrate or even 
(P. cambriciim L.) doubly pinnatifid. — Sliady banks, walls and 
old trees. P. VIII. — X. Common Polypody. E. S. I. 
