37. ADIANTUM. § 1. EU-ADIANTUM. d. CUNEATAE. 331 



coloured. Sori transversally oblong, 1 (.o each lobe, the sporangia nearly 

 restricted to the veins. 

 Palawan. 



* (20) A. aethiopicum, x,., Hk. Bk„ Syn. Fil., 123; Hk., Spec. 

 Fil., II, tab. LXXVII; Bedd., Ferns S.I., tab. V. 



Stipes 15 — 25 c.M. long, erect, naked, dark-brown or blackish, polished. 

 Fronds IS —45 c.M. long, 10—25 c M. broad, + deltoid in outline, 3—4- 

 pinnate. Leaflets suborbicular, broadly flabellate, rather equilateral, the base 

 straight, rounded or broadly cuneate, the outer edge rounded, broadly and 

 shallowly lobed. Texture thinly herbaceous to papyraceous; rachis and sur- 

 faces naked; veins terminating in the ultimate crenatle^ or serratures. Sori 

 in several roundish or transversally oblong patches in rather half-rounded 

 hollows; capsules springing from the veins and parenchyma. 



Banca, New Guinea; Australia, New Zealand; South. ^ Trap. Africa, 

 ? Spain. 



* (21) A., suborbiculare, v. A. «. JS. 



Rhizome short, densely clothed with linear-subulate, entire, bright-reddish- 

 brown scales. Stipes approximate, to 20 c.M. long, erect, blackish, polished 

 like the rachises, scaly at the very base. Fronds ± 15—20 c.M. each way, 

 3-pinnate with several allernate, erecto-patent lateral branches below the 

 terminal one, the lowest largest, branched again in the lower part. Leaflets 

 + 1 c.M. long, %—l^li c.M. broad, obliquely flabellate or suborbicular, 

 stalked, the base cuneate, truncate or rounded, the outer edge rounded, often 

 irregularly and shallowly lobed. Texture papyraceous, firm, subpellucid; sur- 

 faces naked like the rachises and the stipes; veins terminating in the serratures. 

 Sori 2 — 6 to a leaflet, roundish or transversally oblong, placed in indistinct 

 or shallow hollows of the outer edge, the sporangia spriiiging from the 

 veins only. 



Sumatra (Burck). 



* (22) 'A. celebicum, Cht^st, Ann. Btz., XV, 105, tab. XV, fig. 

 15, a— c. 



Stipes wiry, black, polished, shorter than the fronds. Fronds 20—30 

 c.M. long, 7—15 c.M. broad, 3-pinnate at least at the base; rachises black, 

 naked, polished, erecto-patent. Leaflets 1—2 c.M. long, '/a— ^Va c.M. broad, 

 the base more or less broadly cuneate, sometimes rounded, whether or not 



