90. ANGIOPTERIS. 763 



to 4*4 M. long, 2 — 4-pinnate. Pinnae to 1 M. long, spreading, the lowest the 

 largest. Leaflets 10—40 c.M. long, 1 —4 c.M. broad, linear-lanceolate or 

 linear, sessile or short-stalked, acute, acuminate or cuspidate, the edge entire, 

 crenate, serrate or toothed, often conspicuously serrate-dentate towards the 

 apex, the base cuneate, rounded or truncate, articulate. Texture more or 

 less coriaceous, rarely thin; surfaces often naked; veins parallel, simple or 

 forked, whether or not pellucid; recurrent veinlets mostly present. Sori in 1 

 row on each side, near the margin, consisting of + 8 — 18 capsules. — Avery 

 variable plant with numerous forms. 

 Trap. Asia & Africa, Tahiti. 



Capsules sessile, concrete in oblong sori consisting of 2 opposite, boat- 

 shaped, ± 5 — l5-celled synangia, opening by slits down the inner side, + 

 medial or subterminal on the lateral veins, rarely occupying the central ribs. 

 Indusium wanting or present, but then minute, inconspicuous, fimbriate, often 

 persistent. 



Fronds large, 2 — 3-pinnate, stipitate, the stipes provided with 2 distinct sti- 

 pulae at the base; veins free, simple or forked; recurrent veinlets wanting. 

 Hk. Bk., Syn. Pil., tab. IX, fig. 70; Diels^in Engl. & Prantl, Nat. Pfl.Pam., 

 V, fig. 23S, C & 239, E— F. 



Tropical, and subtropical in the'southern hemisphere. 



Arrangement of the sections. 



%\. EUMARATTIA. Sori occupying the lateral veins of the ultimate segments. 



Indusium present. 

 %%. GYMNOTHECA.^Sori as in § 1. Indusium wanting. 



a. Eugymnotheca. Sori sessile. 



b. Eupodium. Sori stalked. (Not in Malaya). 



§ 3. MESOCARPUS {Mesosorus). Sori occupying the central ribs of the ultimate 

 segments. 



§ i. EUMARATTIA. 

 >«, — Rachis dentely scalff, ( 4 - )-M . ve s Hta. 



