APPENDIX. 



This appendix principally treats with the ferns and fern allies 

 discovered after Januari 1st 1916, besides the additions wich could not 

 be inserted in the first part of the work when in the press. 



BuiTENZOBG, Januari 1917. v. A. v. R. 



1. CY^^THE.^, Smith. 



{2a) C. E4l(i».%sii, UidL, in Trans. Lin. Soc, Bot., 2nd. Ser., IX, 251. 



Trunli very slender. Stipes + 10 cm. long, purple-brown, rough, 

 the base provided with acuminate scales. Fronds 2-pinnatifid, + 60 cm. 

 long by 13 cm. broad, the rachis above grooved and hirsute with black 

 hairs, beneath copiously scaly. Central pinnae largest, + 5 cm. long by 

 1 Vs cm. broad, the edge cut to + ^/^-way down to the costa. Lobes to 

 + 11 on a side, oblong, obtuse. Texture papyraceous; surfaces naked, 

 the under one subglaucous; veins to 12 on a side, often forked. Sori at 

 the base of the veins ; indusium globose, bursting irregularly at the apex. 



Neto Guinea. 



(3fl) C pt&|>iisana, ». A. ». R.; Alsophila papuana^ Ricll, in Trans. 

 Lin. Soc, Bot., 2nd Ser., IX, 252. 



Stipes long, naked, sparingly spinulose. Fronds + 115 cm. long, 

 2-pinnatifid. Pinnae subremote, + 30 cm. long. Pinnulae + 8 cm. 

 long by 2 cm. broad, lanceolate, long-acuminate, short-stalked, the edge 

 cut more than ^ji-yraj down to the costa. Lobes 20, oblong, obtuse, 

 crenulate. Texture subcoriaceous ; surfaces naked; veins to 12, forked. 

 Sori to 12, medial; indusium small, at first globose but soon breaking up 

 into very minute fragments. 



New Guinea. 



