764 91. HARATTU. § 1. EUHARATIU. 



■ ht Ultimate pjunulao o/Vow ac w /o/y etmaate at the huso , 



3|c. Stipes tuberculale; main racMs + asperulom. (3) M. samJiHtHna; 

 Hi:.^. Stipes not tuberculale, main rachis smooth or nearly sa 



M. silvatica. 

 b.b. Ultimate pinnulne mostly abruptly cuneale, trunfidfe or rounded at the 



c. Texture rather thin, memhranacofHsor herbaceous. 



Veins nearly always jfr/lple. Texture herbaceous. 



(4) M. pellucida. 

 +.+. Veins partj/tify' simple, partially forked. Texture membrana- 

 ceous^y^ (5) M. fraxinea. 



C.C. TextwK rather thick, charlaceous or coriaceous. 



Veins beneath mlied. Synangia ± 8—iO-celled. (6) M. ternatea. 



d.d. Veins beneath deciduottsly dHacerato-paleaceous. Synangia + 



iSeelltd. -^ (7) M. Smithiii 



(1) M. vestita, Christ, Philipp. Journ., II, 18S. 



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 fibrils. 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 ± 2*/j 

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

 long, + 1*/, 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) M. sambncina, m., Rac, Flor. Btz., I, 2; de Vr., Mon. 

 Maratt., 6; Christ, Philipp. Journ., 11, 184; M. sambucifoiia, Christ (not Bl.), 

 Ann. Btz., XIX, 45. 



Stipes to ± 50 c.M. long, tuberculale 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 tban the lower, 



