48. POLYPODIUM, PHYMATODES. 367 



B. Sterile frond distinct. Sp. 376-383. 



376. P. (Dryn.) Fortunei, Kunze; rhizome woody, the scales linear, bright 

 ferruginous ; fr. dimorphous, the barren ones 2-3 in. 1., l-l?r in. br., the upper 

 lobes deltoid-acute, the fertile ones 12-18 in. 1., 4-6 in. br., cut down nearly or 

 quite to the rachis into lanceolate or oblong acute or bluntish entire erecto-patentr 

 lobes 2-4 in. 1., |-1 in. br. ; texture subcoriaceous ; main veins distinct, 1-2 lin. 

 apart, connected by prominent transverse veinlets, with a few faint ones in the 

 intervals ; sori in single rows of 3-4 between the main veins. Hk. Sp. 5. p. 95. 



Hab. South China, both the coast and interior. 



377. P. (Dryn.) splendens, Hk. ; rhizome woody, the scales grey, fibrillose, 

 adpressed ; fr. subsessile, 2-3 ft. 1., 1 ft. or more br., the lower part barren, cut 

 down nearly or quite to the rachis into erecto-patent entire acute lobes 4-8 in. 1., 

 1-2 in. br., the upper fertile pinnse distant, ligulate, 4-8 in. 1., J-| in. br. ; main 

 veins distinct, with distinct transverse veinlets and copious Intermediate ones and 

 free veinlets ; sori oblong or subquadrangular, filling up the whole of the fertile 

 pinnae except the midrib. Hk. Sp. 5. p. 96. Dryostachyum, J. Sin. 



Hab. Philippines and Singapore. D. pilosum, J. Sm., is a form with the fertile pinnae 

 slightly pubescent. 



378. P. (Dryn.) Willdenovii, Bory ; rhizome thick, woody, the scales \ in. ]., 

 linear, crisped, bright ferruginous ; fr. dimorphous, the barren one 4-6 in. 1., 

 3-4 in. br., the lobes short, rounded, blunt, the fertile one l-2 ft. 1., 6-10 in. br., 

 the upper lobes 4-5 in. J., %-\ in. br., linear, acute, slightly repand, reaching 

 down to the rachis, the lower ones shorter and blunt, with a narrow wing down 

 the stem to the base ; texture coriaceous ; areolce small, copious ; sori slightly 

 immersed, uniserial. HJc. Sp. 5. p. 97. 



Hab. Mauritius and Bourbon. 



379. P. (Dryn.) propinquum, Wall. ; rhizome woody, wide-creeping, the scales 

 linear, bright-ferruginous ; fr. dimorphous, the barren ones 4-9 in. 1., 3-4 in. br., 

 cut half or three- quarters of the way down into bluntish or acute lobes, the fertile 

 ones 1^-3 ft. 1., often 1 ft. br., with a distinct stem, the lobes 4-6 in. 1., ^-f in. 

 br., reaching down nearly or quite to the rachis ; texture subcoriaceous ; areolce 

 copious, the free veinlets few and variously directed ; sori in a row near the 

 midrib, placed at the point of union of several veinlets. Hk. Sp. 5. p. 97. P. 

 Wildenovii, H. G. F. t. 35. (non Bory). 



Hab. N. India (up to 7,000 ft.), Java, and the West African islands. The typical 

 plant has more or less distinctly toothed fertile pinnse, but in the Javan P. pleuridioides, 

 Mett. (P. Willdenovii, Blume, not Bory), they are quite entire. 



380. P. (Dryn.) rivale, Mett. MSS. ; rhizome stout, the scales dense, linear, 

 bright-ferruginous ; fr. dimorphous, the barren ones 4-6 in. 1., 2 in. br., cut down 

 three-quarters of the way to the rachis into spreading blflnt lobes, the fertile 

 ones 1-2 ft. 1., 6-8 in. br., with a distinct stem, the blunt entire lobes 2-3 in. 1., 

 ^ in. br., reaching down nearly or quite to the rachis ; texture of the fertile frond 

 papyraceous ; main veins not more than ^ in. apart ; areolce fine, with copious 

 free veinlets, all directed towards the edge, the close sori terminal on free 

 veinlets in the costal series. 



Hab. N. E. Himalayas. Distinguished from the last by its much thinner texture, and 

 venation like Goniophlebium. The veins of the fertile frond are scarcely at all raised, but 

 are very distinct. 



381. P. (Dryn.) quercifolium, L. ; rhizome stout, the scales bright-brown, 



