Flora of New Zealand Series

≡Peltidea cellulosa Ach., Methodus: 289 (1803).

Descriptions : Flora (1985: 313–314). See also White & James (1988: 129).

Chemistry : Hopane-6α, 22-diol (zeorin), perlatolic acid and unidentified pigments.

N: South Auckland (King Country). S: Nelson (Lake Rotoiti, Maruia Valley); Westland (Kelly's Creek); Canterbury (Boyle River, Hanmer, Arthur's Pass, Banks Peninsula); Otago (Matukituki Valley, Kaka Point). On trees shrubs and mossy boulders in shaded, humid habitats. Also in southern Chile, Argentina, SE Australia and Tasmania (White & James 1988; Filson 1996; McCarthy 2003c, 2006).

Austral

Illustrations : White & James (1988: 125, fig. 5B); Malcolm & Galloway (1997: 116); Malcolm & Malcolm (2000: 80).

Nephroma cellulosum is characterised by: the corticolous habit; the strongly scrobiculate, faveolate–impressed upper surface; and the bullate lower surface, whitish and shining at margins. The dark reddish brown to greyish colour of the upper cortex can make it difficult to find in shaded forest interiors where it often grows, and no doubt its range is wider than that recorded above.