3CS 48. POLYPODIUM, §§§§§§§§§ PIIYMATODES. 



J4 in. 1., lanceolate-acuminate, the base cordate ; fr. dimorphous, the barren 

 ones sessile, 3-12 in. 1,, 2-6 in. br., brown, rigid, bluntly lobed often halfway 

 down, the fertile ones long-stalked, 2-3 ft. 1., 1 ft. or more br., cut down nearly 

 to the rachis into entire erecto-patent lobes 0-9 in. 1., \-\\ in. br. ; texture rigid ; 

 both sides naked ; main veins distinct to the edge, with 4-6 quadrangular areolae 

 between them between the midrib and edge, enclosing each two large sori and 

 copious lesser areolae. — Hk. Sp. 5. p. 96. 



Hab. N. India and S. China to Ceylon, Queensland. 



882. P. (Dryn.) Linncei, Bory ; rhizome stout, the scales 1-2 lin. 1., broadly 

 ovate, with a short acumen from a peltate base ; fr. dimorphous, the barren ones 

 sessile, brown, rigid, bluntly lobed ; the fertile ones long-stalked, 2-3 ft. 1., 

 G-12 in. br., cut down nearly to the rachis into entire erecto-patent lanceolate 

 lobes ; texture rigid ; both sides naked ; main veins distinct to the edge, with 

 copious irregular areolce between them, with copious small scattered sori. — P. 

 sparsisorum, Desv. 



Hab. Ceylon and Malaccas to Queensland, Solomon Isles, and Fiji. — Differs from the 

 last by its small scattered sori. 



383. P. (Dryn.) rigidulum, Sw. ; rhizome stout, wide-creeping, the scales 

 fibrillose, dark glossy-brown ; fr. dimorphous, the barren one sessile, 6-9 in. 1., 

 3-4 in. br., cut down \-^ way down to the rachis into blunt lobes, the fertile 

 one 2-4 ft. 1., 12-18 in. br., long-stalked, pinnate ; pinnce 1 in. or more apart, 

 narrowed or stalked at the base, 6-12 in. 1., j-§ in. br., the point acuminate, the 

 edge more or less deeply inciso-crenate ; texture subcoriaceous ; rachis and both 

 sides naked ; main veins not distinct to the edge ; areolce copious, free veinlets 

 few ; sori immersed in a single row halfway between the edge and midrib. — P. 

 diversifolium, R. Br. Hk. Sp. 5. p. 98. G. F. t. 5. 



Hab. Malaccas to Queensland and Fiji. 



**** Fronds pinnate. Sp. 384-389. 



384. P. (Phym. ) palmatum, Blume ; rhizome stout, the scales large, lanceolate, 

 full-brown ; st. 6-12 in. 1., firm, erect, glossy ; fr. 6-18 in. 1., 8-12 in. br., with a 

 linear or linear-oblong entire or slightly rej^and terminal lobe, and 1-6 similar 

 ones on each side, which are 4-6 in. 1., \-\\ in. br., narrowed or dilated, always 

 slightly adnate at the base, those of the barren fr. the broadest ; texttcre sub- 

 coriaceous ; both sides naked ; main veins distinct to the edge, the areolae fine, 

 hidden ; sori in a single row midway between the edge and midrib. — Hk. Sp. 5. 

 p. 89. Pleuridium, J. Smith. P. crenulatum, 3Iett. 



Hab. Malaccas and Pliilippines. — P. angustatum, Blume {P. Lindleyanum, Wall.), and 

 P. x>u.lniatum, Blume, appear to be varieties of one species, but the latter has only a very 

 few pinnae, which do not reach down to the rachis. 



38.5. P. (Phym.) juglandifolium, Don ; rhizome stout, woody, the scales large, 

 ovate, bright-ferruginous ; st. 1 ft. or more 1., firm, erect, glossy ; fr. 1^-2 ft. 1., 

 1 ft. or more br. ; pinnce in pairs 1-2 in. apart, 4-8 in. ]., 1-1| in. br., the apex 

 acuminate, the edge thickened and wavy, the base rounded ; texture subcoria- 

 ceous ; both sides naked ; main veins distinct to the edge ; areolce copious, 

 hidden, with free veinlets ; sori large, one between each main vein, forming a 

 row nearer the midrib than the edge. — P. capitellatum, Wall. Hk. Sp. 5. p. 90. 

 — /3, P. tenuicauda, Ilk. ; pinnce narrower, very acuminate, narrowed at the 

 base, and the lower ones often a little stalked. — Hk. I. c. 



Hab. N. India, up to 10,000 ft. — PleopeUls >«OMZ?neinens««, Beddome, Fil. Brit. Ind. 

 t. 205, is either a form of this or very closely allied. 



