I 



CRYPTOGAMIA— FILICES. Polypodium. 283 



nate. Root thread-shaped. Masses of capsules scattered, 

 distinct. 



P. Diyopteris. Linn. Sp. PL 1555. Willd. v. 5. 209. Fl. Br. 1 1 1 6. 



Engl. Bot. V.9. t.G]6 ; omitting the reference to Dickson. Hook. 



Scot. p. 2. 153. Bolt. Fil. 52. t. 28. Purt. v. 2. 505. Ehrh. 



Crypt. 102. 

 P. 11.1699. Hall. Hist. v.2,.\2. 



Filix ramosa minor. Raii Syn. 1 25. Bauh. Hist. v. 3. 733./. 

 F. saxatilis ramosa, nigris maculis punctata. Moris, v. 3, 585. 



sect. 14. t. 4. f. 19. 

 F. arborea. Trag. Hist. 538./. good. Dalech. Hist. 1225./. 

 Filicula petraea foemina quarta. Tabern. Kreuterb. 11 82./. 

 Pteridion foemina. Cord. Hist. 170. 2.f. 



On shady mountainous declivities. 



Near Tintern abbey, Monmouthshire. Ray. In the north of York- 

 shire, about North Bierley, and other places. Dr. Richardson. 

 Received from the same county by Mr. T. F. Forster. Sent from 

 thence by Mr. W. Brunton ; and from Staffordshire, by the Rev. 

 Thomas Gisborne, In the Highlands^ as well as Lowlands, of 

 Scotland. 



Perennial. July. 



Root not unlike the last, slender, undulated, widely creeping, but 

 blacker. Frond about a foot high, bright green, smooth, deli- 

 cate and flaccid. Stalk slender, brittle, two or three times as tall 

 as the leafy part, pale, very smooth, except a few scales at the 

 bottom. Outline of the frond, when laid out flat, nearly pen- 

 tagonal. Branches three, the upper one largest j all loosely spread- 

 ing, or drooping, so as to be convex above ; each pinnate, with 

 pinnate, or pinnatifid, sessile, crowded, oblong, obtuse leaflets, 

 or segments, wavy or serrated, especially about their extremi- 

 ties, all finely veined, often rather revolute, smooth, except 

 some minute downiness on the midrib. Capsules numerous, pale, 

 about twenty in each of the masses, which are convex, ranged 

 near the margin of each leaflet or segment, remaining perfectly 

 distinct, and finally turning brownish, destitute of any hairs, 

 scales, or other covering. 



4. P. calcareum. Rigid Three-branched Polypody. 



Frond three-branched; branches doubly pinnate, erect, 

 rather rigid ; segments obtuse, somewhat crenate. Masses 

 of capsules crowded, finally confluent. 



P. calcareum. Fl. Br. 1 1 17. Engl. Bot. v. 22. t. 1525. Purt. v.2. 



506. Sw. Syn. Fil. 42. Willd. Sp. PL v. 5.2] 0. 

 P. Dryopteris. Dicks. Dr. PI. 16. BolL FiL53. 1. 1. 

 Dryopteris Tragi. Ger. Em. 1 135./. 



