﻿764 91. MARATTIA. § 1. EUMARATTIA. 



h» Ullimate pinnulae often acutely cuneate at the base. 



>|c. Stipes tuberculate ; main rachis + asperulous. (2) M. sambucina. 

 >(c.;i<.5<t/9e« not tuberculate, main rachis smooth or nearly so. 



(3) M. silvatica. 

 b.b. Ultimate pinnulae mostly abruptly cuneate, truncate or rounded at the 

 base. 

 c. Texture rather thin, membranaceous or herbaceous. 



+. Veins nearly always simple. Texture herbaceous. 



(4) M. pellucida. 

 +.+. Veins partially simple, partially forked. Texture membrana- 

 ceous. (5) M. fraxinea. 

 c.c. Texture rather thick, chartaceous or coriaceous. 



d. Veins beneath naked. Synangia + 8 —iO-celled. (6) M. ternalea. 



d.d. Veins beneath deciduously dilacerato-paleaceous. Synangia ± 



i5-celled. (7) M. Smithii. 



(1) M. veiilita, Cfhrist, Philipp. Journ., II, 185. 



Large. Stipes thick, reddish-brown, opaque, densely pustulous and clothed 

 with ovate, flaccid scales, which are intermixed with narrower and smaller 

 paleae, the main rachis rufo-fuscous below, ochraceo-rufous above, densely 

 clothed like the lateral rachises with brown, lanceolate scales and fihrils. Pinnae 

 oblong, + 70 c.M. long, ± 30 c.M. broad, petiolate, narrowed at the base, 

 the apex acuminate. Pinnulae petiolate, ± 10 c.M. apart, 20 c.M. or more 

 long, + 15 c.M. broad, narrowed at the base. Tertiary segments + ^Y^ 

 c.M. apart, in several pairs below the terminal one, lanceolate, + 9 c.M. 

 long, + I'/i c.M. broad, alternate, articulate, acuminate, cuneate at the base, 

 toothed with open, spreading teeth, the lowest very short-stalked. Texture 

 thinly but firmly chartaceous; upper surface dark-green, lower paler, opaque; 

 veins conspicuous, simple, remote. Sori minute, remote; synangia + 5-celled. 



Mindanao. 



* (2) II. sambiieiua, BI., Rac, Flor. Btz., I, 2; de Vr., Mon. 

 Maratl., 6; Christ, Philipp. Journ., II, 184; M. sambucifolia, Christ (not Bl.), 

 Ann. Btz., XIX, 43. 



Stipes to + 50 c.M. long, tuberculate or asperous, the rachis naked, 

 asperulous. Fronds 2 — 5-pinnale, + 60 — 120 c.M. long, the ultimate rachises 

 narrowly winged. Leaflets lanceolate, the higher ones longer than the lower. 



