72. CYCLOPHORUS. § 1. NIPHOBOLUS. 411 



oblong, 1 — 2 cm. long, Va — 1 cm. broad, rounded at the apex, cuneate, 

 rounded or cordate at the base. Texture very thick; upper surface soon 

 naked, lower clothed with dense but adpressed, more or less deciduous, 

 moderately woolly, brownish pubescence; costa somewhat prominent 

 beneath, rather sulcate above; veins quite hidden. Fertile fronds linear 

 or hnear-lanceolate, 7 — 15 cm. long, I'/j— 5 mm. broad, above sub- 

 conduplicato-canaliculate when dry, narrowed towards the base, subsessile, 

 blunt at the apex, soon naked above, densely clothed beneath with sub- 

 adpressed, ferrugineous tomentum. Sori rather large, in 1 — 3 irregular 

 rows on each side of the costa, when young immersed, at length pro- 

 minent, with the cavities closed by a small, roundish, lid-like, introrse, 

 deciduous lateral outgrowth of leaf-tissue which is covered by a large, 

 globose tuft of densely crowded, very long-stalked, ferrugineous stellate 

 hairs, the tufts + 2 — 5 mm. diam. 

 Neio Guinea. 



(3) C adnascensi, nesv. 



Forma pernuda (Bull. Btz., 1912., VIl, 10): Fronds entirely naked 

 except among the sori ; only the youngest fronds and stipes provided with a 

 few very remotely scattered stellate hairs. — NeiD Guinea. 



(3a) C. Banileri, Ksf., in Fed., Rep., X, 339. 



Rhizome wide-creeping, branched ; scales narrowly lanceolate, pale, 

 white-cuspidate, brown, rounded and peltate at the base, at length ovate, 

 adpressed, black-brown, brown-margined. Stipes scattered, 2'/2 — S'/j cm. 

 long, deciduously tomentose, those of the fertile fronds the longest. Fronds 

 dimorphous. Barren fronds elliptical, + 10 cm. long, + 2'/^ cm. broad 

 at the middle, acute at both ends, acuminate, entire, subrevolute at the 

 edge, cuneate at the base. Texture rigidly coriaceous; both surfaces 

 slightly tomentose with scattered, deciduous, whitish stellate hairs, at 

 length nearly naked; costa prominent on both sides; main veins sub- 

 prominent; veins immersed. Fertile fronds contracted, to + 18 cm. long 

 and 4 mm. broad, with the under surface rather densely tomentose. Sori 

 occupying the whole under surface of the fertile fronds except the very 

 base and apex, when ripe confluent and elevated abov-e the tomentum. 



New Guinea. 



