450 91. MAEATTIA. § 1. EUMARATTIA. 



9 — I2V2 mm. broad, acuminate, sharply serrate especially towards the 

 apex, the base broadly and obliquely rotundate-cuneate. Texture rigidly 

 coriaceous ; under surface albo-punctulate ; costae prominent on both sides ; 

 veins spreading, simple, deciduously scaly beneath like the costae. Sori 

 nearer the margin than the costa, hardly medial; synangia 4 — 5-eelled; 

 indusium present, fimbriate. 

 New Guinea. 



(3) II. isilvatica, Bi. 



Fronds not invariably 3-pinnate. — Too near M. sambucina Bl. 



(4) 11. pellucida, Pr. 



This is probably only a form of M. fraxinea Sm. with conspicuously 

 falcate-serrate, caudate leaflets (pinnules). 



(5) II. fs'axiiica, Sm.; ? M. macrophylla, de Vr., Mon. Maratt., 

 3, tab. Ill, flg. 17. 



Various writers have included under this name several related forms. 

 The original plant from Bourbon has 2-pinnate fronds, naked axes, almost 

 sessile pinnules 5 — 8 cm. long, lanceolate, serrate, acuminate. (Copel. in 

 Phihpp. Journ., IV°, 10). 



(5rt) II. |>aleola«a, ». A. ». JE., in Bull. Btz., 1916, XXIII, 16. 



Fronds probably 2-pinnate, the rachises dark-dirty-brown, slightly 

 scaly, the scales deciduous, lanceolate, long-acuminate, erisped, often 

 longitudinally fimbriate, ferrugineous. Pinnae 50 cm. more or less long. 

 Pinnulae sessile, spreading or the lower horizontal or somewhat deflexed, 

 lanceolate, the largest about 12 '/^ cm. long, to about 2 cm. broad near 

 the obliquely rotundate-cuneate base, narrowed gradually towards the 

 acuminate apex, serrate; lower pinnulae conspicuously smaller. Texture 

 coriaceous ; upper surface when dry nearly black-olivaceous, under surface 

 paler, minutely albo-verruculose, sparingly squamulose on the costae and 

 veins, the squamules deciduous, fimbriate, crisped, ferrugineous; veins 

 subpellucid, rather spreading, simple, partly forked. Sori remote from 

 the margin, submedial on the veins; largest synangia about 12-celled; 

 indusium fimbriate. 



Sumatra. 



