FERNS OF THE MALAY-ASIATIC REGION. 
61 
101. Cyathea. fen icis Copel. Philip. Journ. Sci. Bot. 3 (1908) 354. 
Trunk 9 cm thick, said to be but 1 m high ; stipe 60 cm long, dark- 
brown, prickly with short, sharp spines, bearing two small, simply pinnate 
pinnae just above the base, and clothed at the base with a few narrow, 
brown scales 15 mm long, otherwise glabrous, as are the slightly roughish 
rachises; largest pinnae 35 to 40 cm long, 20 cm wide, abruptly narrowed 
to a pinnatifid apex; pinnules about 10 cm long, hardly 2 cm broad, 
sessile, cut at the base to the costa, elsewhere to a wing, costa hairy above, 
mostly glabrous beneath; segments 4 mm broad, obtuse, obscurely serru- 
late, eostules bearing a few small scales beneath, lamina glabrous, thin, 
dark-green above, olive beneath ; veinlets forked ; sori globose, less than 1 
mm wide, pale, costular, exindusiate. 
Batanes Islands (Santo Domingo de Basco). 
DOUBTFUL SPECIES. 
Alsophila saparuensis v.A.v.R. in Bull. Dept. Agr. Ind. Nderl. 18 (1908) 2. 
Fronds ample, tripinnatifid, firm but not rigid; stipe prickly, clothed 
with deciduous yellow or brown indument ; rachis rough beneath, fibrillose 
above; middle pinnae the largest, about 45 cm long, 12 to 16 cm wide, 
lanceolate, acuminate; pinnules sessile, the lowest ones horizontal, the 
middle ones the largest, about 15 mm wide; segments crowded, obtuse, 
crenate or dentate at the apex; sori medial; indusia false, of minute, 
round, flat scales. 
Saparua. 
Alsophila bongardiana Mett. 
Differs from C. extensa in having the “segments broader, entire, rather 
glaucous below, with copious scattered scales, veins more distant and 
obscure.” It has the aspect of C. contaminans. 
Bonin. 
Alsophila khasyana Moore. 
Ivhasya. 
Alsophila xantholepis Clirist. 
Bat jan. 
Hemitelia capensis R. Br. 
Reported in Java by Bluiiie, Enumeratio 247, probably by mistake. 
2. BALANTIUM Kaulfuss. 
Caudex erect, but usually not rising much above the ground ; fronds 3 
or 4 times pinnate, deltoid, the ultimate pinnules oblique, more developed 
at the base on the acroscopic side; fertile and sterile pinnules alike, the 
fertile teeth not coriaceous; annulus usually oblique and uninterrupted. 
A small genus with one species in Polynesia, one in Australia, two in this 
