■ 37. ADUNTtlM. § 1. EU-\DIANTUM. C. POLYSORIAE. 323 



ex lobed. Lobes rounded, crenulate. Surfaces naked; rachis slender, black- 

 own, naked; veins flabellate. Sori often 2 on a pinna, terminal on the 

 ies; indusium narrow, obreniform, naked, persistent. 

 Malacca. 



(B) A. Hosei, me., Journ. of Bot., XXVI, 324. 



Stipes slender, castaneous, + 30 c.M. long, sparingly covered with small, 

 Qexed, linear, brown scales towards the base. Fronds 2-pinnate, rhomboidal 

 outline. Pinnae lanceolate, 10—25 c.M. long, 2— 27^ c.M. broad. Leaflets 

 innulae) close, numerous, rhomboidal, dimidiate, obtuse, short-stalked, the 

 ntral ones 2—2'/, c.M. long, 6—9 m.M. broad, the barren ones minutely 

 enate. Texture moderately firm; surfaces naked like the castaneous rachis. 

 iri 1—2, placed on the upper margin of the leaflets, to 4 — 7 m.M. long; 

 lusium broad, firm. — Pendulous plants. 



Borneo. 



* (6) A. diaphanum, «l., Rac, Flor. Btz., I, 145; Hk., Spec. Fil., 



tab. LXXX, C; — var. afiine; A. affim, ^Htr^ \. c, 32. f— Rk. (not W«rf.), 



Rhizome short, erect, densely clothed with small, lanceolate scales. 



ipes tufted, 6—20 c.M. long, slender, erect, blackish, polished, scaly at 



B very base. Fronds 10 — 20 c.M. long, simply pinnate, linear-lanceolate, 



with 1 — 3 branches varying from short to nearly as long as the ter- 



inal one. Leaflets short-stalked, 1 — 2 c.M. long, \ — 1 c.M. broad, unilateral 



sometimes slightly inequilateral, ovate to rhomboidal, the lower line straight 



upcurved, the upper one + parallel to the lower, crenate or slightly lobed 



e the rounded outer edge. Texture very thin; rachis naked; upper surface 



rveyed with few, scattered, brown, subulate bristles especially near the 



wev edge, the under surface clothed with numerous small, adpressed hairs; 



ins terminating in the ultimate crenat*e«8- or serratures. Sori obreniform, 



iced in nearly circular hollows on the upper and often also the outer edge ; 



psules springing from the veins and parenchyma. — In habit this shows 



approximation towards the pedate group when branched. 



War. afflne : Surfaces naked except the subulate bristles on the upper 

 [•face, olive-green when dry. 



Trop. Asia, Polynesia, Australia, New Zealand. 



(7) A. Zollingcri, Mett., Ann. Mus. Bot. L. B., IV, 280. 



Rhizome short, clothed like the base of the stipes with reddish-brown, 



