76 4a. BALANTIUM. 



acuminate, the latter short-stalked, 2 — 3 cm. broad at the base. Tertiary 

 segments sessile with a cuneate base, the lowest anterior ones the largest, 

 1 '/a — 2 cm. long, to 5 mm. broad, the apex blunt, toothed, the edge cut 

 down nearly or quite to the costa into oblong, blunt, toothed segments 1 — 2 

 mm. wide, the lowest anterior segment the longest. Texture herbaceous ; 

 upper surface more or less glabrous, lower densely hairy, as are the 

 secondary and tertiary rachises. Sori small, in the sinuses, submarginal ; 

 indusium more or less cup-shaped ; annulus vertical, incomplete. 

 Java. 



(2) B. pilosuni, Copel., in Journ. Str. Br. R. A. Soc, LXIII, 71. 

 Stipes 20 cm. or more long, dark-purple-brown and asperulous. Fronds 



subdeltoid, ± 30 cm. long by 15 cm. broad, 4-pinnatifid, the rachises densely 

 hairy, the hairs rufo-castaneous. Pinnulae stalked, deltoid, + 8 cm. long, 

 with the lowest segments + 8 mm. long, 5 mm. broad, oblique, deeply 

 pinnatifid. Texture coriaceous ; upper surface glossy and sparingly hairy, 

 lower densely hairy. Sori terminal on the smaller teeth ; indusium equally 

 2-valved; capsules intermixed with copious paraphyses. 

 Borneo. 



(3) It. Copelandi, Christ, Copel., in Philipp. Journ., IV*^, 62, 

 tab. XIX; Dkksoiiia Co])elandi, Christ., in Phihpp. Journ., IF, 183; 

 DennstaecUia Elmeri, Christ, MS. 



Caudex up to 60 cm. high. Stipes up to 1 '/■> m. long, rufo-stramineous 

 when young, rather glossy, hairy when young, the base densely clothed 

 with fine, reddish-brown, moderately long hairs. Fronds 3 — 4 pinnate, 

 varying from 50 — 300 cm. long. Pinnae up to 100 cm. long, deltoid, 

 acuminate, petiolate, produced on the upper side at the base. Pinnulae 

 close, the lower and central ones deltoid, the lowest stalked, acuminate. 

 Ultimate segments small, oblong, acute, the lowest free in the largest 

 fronds, rather unequal-sided, serrate, the teeth acute, mucronate. Texture 

 firm ; upper surface naked, rather glossy, lower hairy on the veins ; colour 

 ochraceous-green ; veins forked or pinnate in the ultimate segments, rather 

 obscure. Sori numerous, on rounded teeth, surpassed by the mucrones, 

 1 to each tooth, occupying especially the anterior side ; indusium irregularly 

 ' 2-valved. 



Philippines, Borneo. 



