Rhizome slender, shortly creeping or erect; scales pale brown, linear-lanceolate, 1.5-3.5 × 0.1-0.3 mm, margin obviously denticulate, clathrate. Fronds clustered; stipe indistinct; lamina subleathery, linear-lanceolate, 5-15 × 0.8-1.5 cm, widest at middle or above, apex narrowly acute, base long attenuate; costa indistinct; veins abundantly reticulate, raised abaxially, invisible adaxially. Soral lines 3-5, zigzag, subparallel, continuous or interrupted, or forming nets, lower 1/3 not fertile; paraphyses taeniform. Spores trilete, tetrahedral-globose, surface papillate.
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