PROF. M. W. IIAEBIXOTON" OX TROPICAL PERNS. 31 



CauJex short and thick, with slender brown scales ; stipes 

 clustered, 3-6 inches long, slender, grey, slightly pubescent 

 above ; frond 6-10 in. long, |-1^ in. wide, linear-lanceolate, the 

 lower pinnae reflexed ; pinnae 20-40 on each side, 6-8 lines long, 

 3-4 lines broad, elliptical, slightly falcate, obtuse, coarsely crenate, 

 auricled on the upper side, short-stalked or sessile ; texture sub- 

 coriaceous; rachis and under surface of veins pubescent; veins 

 pinnate, 2-3 veinlets on each side, of which usually but one unites 

 with the opposite one of the next lobe ; sori indefinite. 



Mountains of Panay, Philippines. Growing in clusters on the 

 ground. 



The sporangia are scattered over the under surface of the 

 frond, though a grouping into indefinite sori can be distinguished. 

 The plant is related to the American P. reptansj Swartz. 



PoLTPOniUM HIRTELLUM, BL LuZOU. 



p. ciJCULLATUM, JVees. Luzon. 



P. MixuTUM, £L Luzon. 



169*. P. (Eupolypodhtm) Schexkii, Harrington^ n. sp. 



Caudex thick, horizontal, densely clothed with slender brown 

 scales; stipes clustered, 2-3 inches long, brown, pubescent, firm, 

 erect ; frond 0-12 inches long, l|-2 in. wide, oblong, tapering 

 gradually above and below, pinnate ; pinnae numerous, |-1 inch 

 long, 1-2 lines broad, linear, obtuse, entire, broadened and nQVLvlj 

 confluent at the base ; lowest pinnae small, triangular ; fertile and 

 sterile pinnae alike ; texture membranous ; rachis pubescent, sur- 

 faces otherwise naked ; venules simple, free, falling short of the 

 margin ; sori not confined to one part of the frond, deeply im- 

 mersed, margins of the depression neai'ly covering them, oblong, 

 4-8 in a row on each side of the the midvein, obliquely falling a 

 little short of midvein and margin. 



Growing in clusters on trunks of trees. Mountains of Panay, 



Philippines. 



Nearest to P. hlechioides, Hooker, 



169**. P. (Eupoltpodium) CKATERisoRrM, Harrington^ n. sp. 



Caudex clothed with dense, brown, lanceolate scales ; stipes 

 clustered, |-1^ inch long, hirsute with brown hair, firm, erect ; 

 frond 8-12 inches long, 1^-2^ in. wide, oblong or oblong-oblan- 

 ceolate, tapering above and below, pinnate ; pinnae numerous, 

 linear, about 1 inch long and 2 lines broad, obtuse, entire, broad- 

 ened and more or less confluent at the base, passing below into the 

 narrow, lobed wing of the stipe ; rachis pubescent, surfaces other- 



