假桫欏屬

Small tree ferns; stem black, erect, to about 1 m tall, 1-2 cm in diameter, covered with stubs of persistent leaf bases, apex scaly. Fronds slightly dimorphic, long lanceolate, hair-pointed, brown scales with paler margins; rachis scales similar but smaller; rachis narrowly winged, bearing a small lobe between each pinna; venation free, simple or once forked; veinlets ending in hydathodes; margins of pinnules entire or serrulate; median pinnae 4-8 cm long, lower pinnae shortened to small lobes of about 2 mm long. Fertile fronds slightly contracted, pinnae with caudate apices. Sori costal, coenosori, sporangia borne on straight unbranched fertile veins parallel to costa; indusia thin, linear, brown, continuous or lobed; free margin of fertile pinnae very narrow, inroled.

Only one known species.

Lower Taxon

• Diploblechnum fraseri (A. Cunn.) DeVol