N. dubia:
 ...one could call the pitchers toilet-shaped ;-) They are tubulous in 
the lower half and infundibuliform in the upper. The peristome is 
broad, flat and prominent which gives the toilet-like appearance. The 
lid is cuneate and pointed backwards like in N. ampullaria. The plant 
is gracile and grows as an epiphyte in the wild. Gunung Talakmau; 
Sumatra.
N. mapuluensis:
Like a small N. northiana in the young plant. Very broad obovate 
leaves, sometimes reddish. The upper pitchers are 
slender-infundibuliform reminding a lot to N. spectabilis. Colour is 
also similar. Very nice. Gunung Mapulu and Gunung Tebalar; East 
Borneo.
        Andreas Wistuba; Mudauer Ring 227; 68259 Mannheim; Germany
E-Mail: a.wistuba@dkfz-Heidelberg.de / a.wistuba@carnivor.rhein-neckar.de
Phone:  +49-621-705471                                Fax: +49-621-711307