19. POLYSTICHUM. l43 



pinnae somewhat shorter. Pinnulae short-stalked, spreading or suberect, 

 subapproximate, trapezoid-oblong, the edge obtusely toothed, the upper 

 base auriculate, truncate, the lower base cuneate. Texture rigidly 

 ehartaceous or coriaceous; veiirs subimmersed, the higher simple, the 

 others 2 — 3 X forked, the lowest anterior pinnate in the auricle; upper 

 surface naked, lower sparingly fibrillose. Sori nearer the costae than the 

 margin. 



War. ovalis: Fronds broadly oval; pinnae and pinnulae close; 

 pinnulae hardly auricled; teeth more acute. 



New Guinea. 



(4e) S*. alpiniiBti, Rst., in Fed., Rep., XII, 171. 



Rhizome erect, the scales ferrugineous, lanceolate, long-acuminate, 

 denticulate. Stipes 10 — 20 cm. long, castaneous at the base, stramineous 

 upward, clothed like the rachis with scales similar to those of the 

 rhizome but shorter, fibrillose. Fronds + 10 — 20 cm. long, 4 — 6 cm. 

 broad, 2-pinnate, obtuse. Pinnae 10-15 on a side, suberecto-patent, 

 subapproximate, short-stalked, deltoid-oblong, obtuse; lowest pinnae 

 largest, 2 — 4 cm. long by IV2 — 2 cm. broad. Pinnulae petiolate, 

 subcontiguous, ovate or obovate from a cuneate base, subentire or 

 crenate, rarely acutely toothed, the teeth sometimes aristate; lowest 

 pinnulae auricled, the auricle often free. Texture subcoriaceous ; surfaces 

 sparingly filiriUose; rachises fibrilloso-paleaceous ; veins immersed, 

 subflabellate or pinnate. Sori medial; indusium minute, caducous. 



New Guinea. 



{5rt.) P. fiBamleriasium, Rst., in Fed., Rep., X, 330; — var. 

 ferrugineo-paleaceum, Rst., 1. c, 331. 



Stipes red-brown, to + 30 cm. long, clothed with crowded, deciduous, 

 Unear-lancBolate, long-acuminate, denticulate, blackish scales, the teeth 

 simple or 2-fid. Fronds elongate-ovate, 3-pinnate, + 45 cm. long and 

 10 cm. broad, shortly acuminate. Pinnae numerous, contiguous, erecto- 

 patent, straight or flexuose, short-stalked, linear-lanceolate, gradually 

 acuminate, serrate towards the apex, the central ones + 12 cm. long 

 and 2 cm. broad, the lowest + 9 cm. long. Pinnulae suberect, short- 

 stalked, trapezoid-oblong, subacute, obliquely and broadly cuneate at the 

 base, the central ones to I'/j cm. long, '/a cm. broad, pinnatifld, pinnate 

 and subauriculate St the base, the lowest elongated, the higher smaller, 



