FIGURE 2 in Fern distributional records in Christensenia (Marattiaceae), Dipteris (Dipteridaceae), and Rheopteris (Pteridaceae) from the upper Sepik of Papua New Guinea

FIGURE 2. Dipteris lobbiana (Hook.) T.Moore. Habitat. Colony on creekbed boulders discolored by heavy metals (4°40.741'S, 141°46.260'E, 530 m, 9 February 2010). Streams in mafic environments are toxic, requiring service water to be obtained via rainfall or helicopter delivery.