91. MABATTIA. 767 



§ 3. MESOCARPUS. 



(9) M. l¥erneri, Ust., Fed., Rep., V, 44. 



Rhizome and stipes unkwown. Fronds large, + 2 M. long, 3-pinnate. 

 Pinnae petiolate, elongate-oblong, to 70 c.M. or more long, + 25 c.M. broad, 

 broadest at the centre, the rachis adherent to the main one, canaliculate 

 above, brown, clothed with few scattered, minute, narrowly lanceolate scales. 

 Pinnulae short-stalked, suberecto-palent, articulate to the secondary rachises, 

 deciduous, linear, the central ones the longest, + 14 c.M. long, ± I'/j c.M. 

 broad, the apex abruptly acuminate, the terminal pinnulae somewhat longer 

 than the highest ones, the internodations of the rachises winged between the 

 the pinnulae, the wings nearly '/2 mM. broad at the centre, narrowed towards 

 both ends. Tertiary divisions sessile, articulate at the base, deciduous, elongate- 

 oblong, subfalcate, + 7*/j m.M. long, + 3 m.M. broad, short-acuminate, 

 serrato-dentate at the margin, cuneate at the base, the terminal ones caudiform. 

 Texture coriaceous; surfaces naked, upper surface lucent (opaque when dry), 

 darker in colour than the lower; midribs of the ultimate segments (leaf- 

 lets) prominent above; veins simple, terminating in the teeth, sterile. Sori 1 

 to each leaflet, occupying the upper part of the midrib; synangia ± 9—11- 

 celled; indusium wanting. 



New Guinea. 



02. CHUISTEIVSETVIilL, Maivon. 



Capsules sessile, concrete in raised, circular, ± 10 — 20-celled synangia, 

 which are concave at the top so as to form nearly cupuliform or ring-shaped 

 masses, opening by slits down the inner side or by apical pores. 



Rhizome creeping. Stipes scattered or approximate, with 2 fleshy stipulae. 

 Fronds simple, or digitate and 3— 3-foliate: veins anastomosing. Hk. Bk., 

 X, fig. 72; Diels, in Engl. & Prantl, Nat. Pfl.Fam., I*, fig. 

 5-H. {Kaulfmsia). 



Fi 



tab 



Australasia. 



* Fronds simple, if digitate, then the central segment under 17 *j^ cm. 



long. (1) C. Cumingiana. 



** Fronds digitate, the central segment more than 17 'j^ cm. long in the 



adult plant. (2) C. aesculifolia. 



