24 GOPELAND. 



and everywhere foliaceous, the filial branches up to 2b em long; segments 

 10 to 11 nun long, 3 mm wide, confluent, obtuse, falcate or not horizontal, 

 revolute when dried, coriaceous, glabrous unless at the base of the costa 

 beneath, more or less glaucous beneath : sporangia 3 or 4 in a sorus. 

 Malaya, on high mountains. 



7. Gleichenia loheri Christ. 



Creeping stem and bases of stipes clothed with dark-brown, lanceolate, 

 entire pale* 5 mm long, stipes about 30 cm high; rachis bearing paired 

 pinna, and the lowest of these, in well-developed specimens, also with L 

 or 2 pairs below the final fork, the axes everywhere foliaceous or bearing 

 segments only down to the lowest fork, clothed with tawny, lanceolate, 

 subulate, lacerate-ciliate spreading scales; branches finally twice forked 

 at an acute angle, the ultimate branches up to 20 cm long; segments not 

 horizontal, barely confluent, deltoid-lanceolate, acute, 2.5 to 3 mm wide 

 at the base, 12 mm long, revolute in drying, coriaceous, dark-brownish- 

 green above, paler beneath but not glaucous, glabrous except on the eos- 

 tules beneath. 



Luzon, Mount Jhmajao. 



S. Gleichenia laevigata (Willd) Hook. 



Hhizome naked, woody; frond up to lot) em or more high, stipe and 

 rachis brown, slender, naked, smooth, marked above by two sharp lines, 

 forked at the top, and below this bearing to 5 pairs of pinnae, in whose 

 axils and at the apex some small, congested, green bracts are sometimes 

 found; pinnre 2 to b times forked, everywhere foliaceous, widely divar- 

 icate, ultimate brandies up to 20 cm long, axes glabrous or bearing very 

 minute, spreading scales; segments at right angles, connected by a narrow 

 wing, up to 4 cm long, 2 mm wide, straight, entire, obtuse, herbaceous or 

 fairly coriaceous, more or less glaucous beneath, glabrous unless on the 

 OOfita beneath: sori of 3 or 4 sporangia, sometimes subtended by lacerate 

 squamules. 



Malaya, widespread at mean altitudes. 



!>. Gleichenia oceanica Kuhn. 



Frond up to 2 m high; pinnae in small plants a single pair at the top, 

 but in large specimens several pairs lower down, several times dicho- 

 tomous at an acute angle, ultimate branches 10 cm or more long, deeply 

 pinnatifid, rachiscs densely clothed with lanceolate, ferruginous, fimbriate 

 scales; segments on all (or all but the lowest) axes of the pinna?, standing 

 at an acute angle, close, short, 2 mm wide, acute, abruptly reduced toward 

 the apex of the branch, membranaceous, glaucous beneath ; sori medial. 



1 have followed Christ in framing this diagnosis, as the species is known in 

 Malaya only by the Celehes plant determined by him. Kuhn says explicitly that 

 the segments stand at a right angle, and are obtuse, and up to 24 mm long. 



Celehes. Polynesia. 



