48. POLYPODIUM, PHYMATODES. 363 



355. P. (Phym.) trifidum, Don ; rhizome stout, the scales linear, squarrose, 

 bright-ferruginous ; st. 3-6 in. 1., firm, erect, glossy ; fr. 6-12 in. 1., 6-8 in. br., 

 with a large linear terminal lobe and 1-5 similar ones on each side, which reach 



between them ; sori uniserial and 1 only between each main vein. P. oxylobum, 

 Wall. HLSp.5.p.77. 



Hab. N. India (up to 7,000 ft.) to Ceylon, China, Japan. 



- 356. P. (Phym.) malacodon, Hk. ; rhizome rather slender, the scales lan- 

 ceolate-acuminate, brown or nearly black ; st. 4-6 in. 1., slender, glossy ; fr. 

 6-15 in. ]., 5-6 in. br., with a linear or linear-oblong subentire or repand and 

 finely-toothed acuminate terminal lobe 3-4 in. 1., ^-f in. br., and 1-4 smaller 

 lateral ones on each side, which are more or less confluent at the base ; texture 

 papyraceous or subcoriaceous ; both sides naked ; main veins fine but distinct, 

 the areolse fine and clearly visible, with copious free veinlets ; sori in a 

 single row on each side, nearer the midrib than the edge. Hk. Sp. 5. p. 87. P. 

 cyrtoloba, J. Sm. 



Hab. N. India, up to 12-13,000 ft. Very near the last, but thinner in texture, the 

 pinnae deeper, and often finely toothed. 



357. P. (Phym.) incurvatum, Blume ; rhizome woody, the scales adpressed ; 

 fr. dimorphous, the barren ones 6-9 in. each way, deltoid, ternate or pinnatifid, 

 with broad lanceolate-acuminate entire lobes, the stem firm, glossy, 6-9 in. 1. ; 

 fertile fr. larger, cut down nearly or below quite to the rachis into erecto-patent 



entire distant lobes 4-8 in. 1., - in. br., the lowest sometimes forked, the st. 

 1^-2 ft. 1. ; texture very coriaceous ;-both sides naked ; main veins distinct to the 

 edge ; the uniserial sori quite immersed, and forming prominent papillae on the 

 upper surface. Hk. Sp. 5. p. 77. 



Hab. Malaccas. Well distinguished by its very coriaceous usually ternate barren 

 frond, with deltoid lobes. 



358. P. (Phym.) angustiim, Mett. ; rhizome firm, the scales brown, linear, 

 crisped ; st. 2-5 in. 1., firm, erect ; fr. 6-9 in. each way, with a linear terminal 

 lobe 4-6 in. L, J- in. br., and several similar erecto-patent lobes on each side, 

 which reach down nearly or quite to the rachis and are dilated at the base; 

 texture coriaceous ; under surface furfuraceous, with minute scattered peltate 

 scales ; veins obscure ; sori prominent, in a row on each side the midrib. Hk. 

 Sp. 5. p. 76. 



Hab. Mexico, Guatemala, W. Indies, S. Brazil. The original Pleopeltis of Humboldt. 

 The typical plant is sometimes subdigitate ; P. sectifrons, Kze. (Drynaria elastica, FtSe), 

 is a more fully pinnate form than usual ; and D. stenoloma, Fe"e, a form with the lobes 

 only g in. br. 



359. P. (Phym.) insiffne, Blume ; rhizome slender, the scales linear, dull- 

 brown ; st. 2-4 in. L, slender, erect, naked ; fr. 6-9 in. 1., 4-6 in. br., with an 

 entire lanceolate-acuminate terminal lobe 2-3 in. L, in. or more br., and 2-4 

 similar ones on each side, which reach down within in. of the rachis and below 

 them a long narrow decurrent wing to the stem ; texture firm-herbaceous ; both 

 sides naked ; veins fine, irregular, with free veinlets ; sori small, scattered 

 irregularly. Hk. Sp. 5. p. 78. 



Hab. Java, Philippines, and Malacca. 



300. P. (Phym.) pustulatiim, Forst. ; rhizome woody, copiously branched, 

 wide-scandent, the scales linear, dark-brown, squarrose ; st. 1-3 in. 1. ; fr. 



