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416 606. DICTYOPTERIS. § t. ARCYPTERIS. 



surfaces nearly naked or slightly furfuraceous or scaly. Sori confined to the 

 lobes, in 1 row on each side of the main veins or costulae. 

 Java. 



(8) O. macrodonta, l»r., Tent. Pterid., 194; Phegopteris macro- 

 donta. Melt., Christ, Farnkr. d. Erde, 266; Poly podium macrodon, Reinw., Hk, 

 Bk., Syn. Fil., 318; P. Cumingianum, Hk., Spec. Fil., V, 105; Aspidium ma- 

 crodon, Keys, (not Diels), Copel., Polypod. Philipp., 34; C. Chr., Ind. Fil.; Tec- 

 taria irregularis, Copel., var. macrodon, Copel., Philipp. Journ., II, 417. 



Rhizome decumbent. Stipes 30 c.M. or more long, slightly scaly below. 

 Fronds 60 — 100 c.M. long, 30 — oO c.M. broad, the apex deeply pinnatifid; 

 below this numerous lanceolate pinnae, the lowest the largest, 15 — 20 c.M. 

 broad, cut down to a narrow wing on the rachis into pinnatifid, close, lance- 

 olate segments. Texture thin; both surfaces naked; areolae copious, without 

 free veinlets. Sori small, in rows near the main veins, 



Malaya; Fiji. 



* (9) D. ferruginea, ». A. v. JK., Hort. Bog. ; Phegopteris ferruginea, 

 Mett., Ann. Mus. Bot. L. B., 224, tab. VI, fig. 2 ; Polypodium ferrugineiim, Bk., 

 Hk. Bk., Syn. Fil., 318; Aspidium ferrugineum, Diels, in Engl. & Prantl, Nat. 

 Pfl.Fam., I*, 186; A. Zippelianum, C. Chr., Ind. Fil. ; Sagenia ferruginea, Christ, 

 MS. in Herb. Bog. 



Stipes + 25 — 45 c.M. long, clothed densely below, and less so above, 

 with ferrugineous, lanceolate, spreading or deflexed scales. Fronds ± 

 30 — 40 c.M. long, + 20 — 50 c.M. broad. Pinnae erec to-patent, the higher 

 ones pinnatifid, the central and lower pinnate. Lowest pinnae largest, deltoid, 

 with the pinnulae on the lower side elongate, again pinnate, the segments 

 pinnatifid. Texture herbaceous ; rachises and surfaces fibrillose with sprinkled, 

 ferrugineous or reddish, hair-like scales; lower veins anastomosing, forming 

 costal and costular areolae + as in Pleocnemia, otherwise free ; areolae without 

 free veinlets. Sori in 1 row on each side of the costulae or main veins of 

 ultimate segments. 



New Guinea. 



* (10) D. vitiis, «. A. V. JR.; Nephrodium Vitis, Ric, Bull. Ac. Crac, 

 i902, 60; Sagenia Vitis, Christ, Ann. Btz., XX, 108, tab. Ill, fig. 2; S.rufipu- 

 bis, Christ, MS. in Herb. Bog.; Aspidium vitis, C. Chr., Ind. Fil. 



Rhizome thick, oblique, the scales subulate, brown. Stipes tufted, 20 — 



