b. var. pseudolauterbachii Hovenkamp & Miyam., var. nov. - Map 3a

Ab var. cordifolia differt frondis brevioris, 20-45 cm longis, 0.8-3 cm latis, pinnis fertilis sinuosis, basi inaequalis, paucisoris; ab N. lauterbachii differt paleis rachidis pallidis, stipidis simile. - Typus: T. Nakamura et al. 668 (holo TUAT; iso B, BISH, BM, BRI, F, K, MICH, NSW, NY, P, PNH, TAI), Fiji, Viti Levu, Namosi, 16 March 1986.

Differs from the type variety in smaller fronds, to 20-45 by 0.8-3 cm, fertile pinnae sinuose, with distinctly unequal base, bearing few sori; differs from N. lauterbachii in scales on the rachis similar to those on the stipe.

Distribution - Pacifc Islands: Vanuatu, Fiji, Samoa.

Habitat & Ecology - Between 600-1700 m, generally in similar situations as the type variety.

Note - A small form strongly resembling N. lauterbachii, but without dark rachis scales characteristic for that species, and also with less distinctly asymmetric bases of the sterile pinnae, and not showing the regularly proliferous stolons. From N. cordifolia var. cordifolia it differs also in the absence of tubers.