Austroblechnum ivohibense (C. Chr.)

ivohibense: named after Mt. Ivohibe in south-eastern Madagascar.

Rhizome erect, c. 5 mm thick; scales dark brown to black, up to 2 mm long, margins entire. Fronds whorled, dimorphic. Stipe up to 10 cm long in the sterile frond, double the size in fertile fronds. Sterile lamina 40 × 7.5 cm, deeply pinnatifid, narrowly elliptic in outline; pinnae oblong, slightly falcate, glabrous, margins finely toothed, apex acute to rounded. Fertile lamina as for sterile lamina but with linear pinnae. Rhachis sparsely set with a few brown scales. Sori linear, appearing to cover the pinnae completely at dehiscence; indusium continuous.

Rare

Kenya, Malawi, Mozambique, Tanzania, Zimbabwe and also in Madagascan region.