454 100. FiLicES. 



often forked and each branch ending in a cluster having no 

 indusium hut concealed by the reflexed edge of the leaflet. 

 Height 6 — 12 in. St. slender, very brittle. — Amongst loose 

 stones on mountains. P. VIl. Parsley Fern. E. S. I. 



2. PoLTPo'DitTM Linn. Polypody. 



* Clusters at the end of a veinlet, other veirdets hnohhed at the end 

 and not reaching the edge. Rhizome withovit fronds at its 

 end. Stipes jointed to rhizome. 



1. P. vulgdre (L.) ; fronds deeply pinnatifid, lobes linear-ob- 

 long somewhat serrate all parallel upper ones gradually smaller. 

 —^.5.1149. H.F. 2. iV. 111.— Rhizome brown, densely 

 scaly creeping. Fronds strapshaped. Clusters large, on the 

 upper part of the frond. Lateral veins of the pinnae with 4 

 brandies. Pinnse occasionally bifid at the end, sometimes 

 deeply serrate or even (P. camhricum L.) doubly pinnatifid. — 

 Shady banks, walls and old trees. P. VITI. — A. Common 

 Polypody. E. S. I. 



** Veinlets not knobbed hut reaching the edge, all usually fertile, 

 clusters near the end of each. Rhizome xoith fronds at its 

 end. Stipes not jointed to rhizome. 



2. P. Phegop'teris (L.) ; fronds pinnate, pinuas linear-lanceo- 

 late united at the base pinnatifid with linear-oblong blunt lobes, 

 lowest pair of pinn^ turned dmvnwards and forwards the rest 

 upwards, clusters marginal. — JE. B. 2224. H. F. 3. N. 115. — ■ 

 Rhizome nearly black, wiry, slightly scaly, creeping extensively. 

 Fronds triangular. Pinnae very acute, pointing upwards, rather 

 hairy, connected by their whole width with the rachis ; lowest 

 pair quite distinct, with a minute stalk, standing forwards and 

 pointing from the others. — Damp places, loving the spray of 

 waterfalls. P. VII.— IX. E. S. I. 



3. P. Dryop'teris (L.) ; fronds ternate glabrous, divisions pin- 

 nate, pinniB pinnatifid blunt uppermost nearly entire, clusters 

 marginal.— JS. S. 616. S. F. 4. N. 123.— Rhizome black, 

 wiry, creeping, slightly scaly. Stipe slender, brittle. The three 

 divisions of the frond loosely spreading, the middle one rather 

 the largest. Very young fronds resemble 3 little balls on loires. 

 Not glandular. — Shady mountainous places. P. VI. VII. 



E. S. I. 



4. P. Robertidnum (Hofiiu.) ; fronds triangular svbtemate 

 glandular-mealy, lower branches pinnate, pinnaepinnatifid blunt 

 uppermost nearly entire, clusters marginal. — H. F. 5. P. cal- 



