CRYPTOGEAMME. — POl.YPODIUM. 
521 
Tr. VI. OSMUNDEJ-:. 
17. OsMUNDA. Capsules clustered, arranged in a branched 
spike terminating the frond. 
Suborder III. 0PHI0C4L0SSACE^. 
Young fronds straight. Rachis succulent. Capsules 
regularly 2-valved, sessile, in clusters on a separate branch 
of the frond. 
Tr. VII. OPHIOGLOSSE.E. 
18. BoTEYCHiUM. Capsules distinct, disposed in a com- 
pound spike attached to a pinnate or bipinnate frond. 
19. Ophioglossum. Capsule connate, disposed in a simple 
distichous spike attached to an undivided frond. 
Suborder I. Polypodiacece. Tribe I. Polypodiece. 
' 1. Ceyptogram'ma B. Br. Rock -brake. 
1. C. cris'pa (R. Br. ex Hook.) ; barren fronds 2 — 3-pinnate, 
leaflets wedgeshaped or linear-oblong often bifid at the end, 
leaflets of the fertile fronds oblong. — ff. F. 39. AUoswus 
Bernh., K. 103. E. B. 1160.— Fertile frond nearly triangular. 
Veins alternate, often forked and each branch ending in a 
cluster having no indusium but concealed by the reflexed 
edge of the leaflet. Height 6 — 12 in. St. slender, very 
brittle. — Amongstloosestones onmountains. P. VII. Parsley 
Fei-n. E. S. 1. 
2. PoLYPODiUM Linn. em. Roth. Polypody. 
* Clusters at the end of a veinlet, other veinlets knobbed at the 
end and not reaching the edge. Rhizome without fronds 
at its end. Stipes jointed to rhizome. 
1. P. vidgdre (L.) ; frond deeply pinnatifid, lobes linear- 
oblong somewhat serrate all parallel upper ones gradually 
smaller. — E. B. 1149. //. F. -2. iY. 111. — Rhizome brown, 
densely scaly creeping. Fronds strapshaped. Clusters large, 
on the upper part of the frond. Lateral veins of the pinnae 
with 4 branches. Pinnas occasionally bifid at the end, some- 
times deeply serrate or even (P. cambricum L.) doubly 
pinnatifid. — Shady banks, walls and old trees. P. VIII. — X. 
Common Polj/pody. E. S. I. 
