m 



75. DEYMOGLOSStTM. 



bluntish, entire or slightly wavy. Texture coriaceous; costa distinct 

 except in the upper '/i ; veins hidden. Fertile fronds linear, + 1^/4 — 2'/, 

 cm. long and '/3 cm. broad, obtuse, entire, cuneate at the base, Sori 

 broad, occupying the whole under surface of the fertile fronds. 

 Neio Guinea. 



Sori long, linear, 1 on each side of the costa, parallel to the margin, 

 marginal or intramarginal. Receptacle thickened. No indusium. 



Stipes articulate to the rhizome. Fronds simple, uniform, at best 

 somewhat contracted in the fertile i^egion; veins anastomosing. Pr., Tent. 

 Pterid., tab. X, fig. 3 (Pteropsis) ; Diels, in Engl. & Prantl, Nat. Pfl.fam., 

 I*, fig. 161 E (Heteropteris). 



America, Papua, China. 



Areolae toithout free veinlets. 

 Areolae with included free veinlets. 



(1) P. vittariiforme. 

 (2) P. novoguineensis. 



(1) P. vittariiforme, H»t., in Fed., Rep., X, 341. 



Stipes 7 — 8 cm. long, fiattened, narrowly marginate, naked. Fronds 

 linear-lanceolate, + 45 cm. long, nearly 1 cm. broad, narrowed gradually 

 at both ends, the apex narrowly linear, the edge entire, involute in the 

 upper part, the base decurrent. Texture coriaceous; surfaces naked; 

 midrib flattened but prominent on both sides; veins subconspicuous, 

 forming 1 — 3 rows of hexagonal areoles on each side of the costa, without 

 veinlets. Sori long, linear, submarginal, continuous, occupying the upper 

 part of the frond except the linear apex; paraphyses present, piliform, 

 hardly thickened at the apex. 



New Guinea. 



(2) I*, uovoguineense, «*«., in Nov. G-uin., VIII, Bot., 729. 

 Rhizome wide-creeping, slender, sparingly provided with lanceolate, 



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