Phylogenetic analyses place the monotypic Dryopolystichum within Lomariopsidaceae Author Chen, Cheng-Wei Division of Silviculture, Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei 100, Taiwan Author Sundue, Michael The Pringle Herbarium, Department of Plant Biology, The University of Vermont, 27 Colchester Ave., Burlington, VT 05405, USA Author Kuo, Li-Yaung Institute of Ecology and Evolutionary Biology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan Author Teng, Wei-Chih Natural photographer, 664, Hu-Shan Rd., Caotun Township, Nantou 54265, Taiwan Author Huang, Yao-Moan Division of Silviculture, Taiwan Forestry Research Institute, 53 Nan-Hai Rd., Taipei 100, Taiwan huangym@tfri.gov.tw text PhytoKeys 2017 2017-04-07 78 83 107 http://dx.doi.org/10.3897/phytokeys.78.12040 journal article http://dx.doi.org/10.3897/phytokeys.78.12040 1314-2003-78-83 6720FFAC981BFFE7FFC3AA2EFFCFFFB3 576384 Dryopolystichum Copel., Gen. Fil. 125, t. 4. 1947. Type . Dryopolystichum phaeostigma (Ces.) Copel., Gen. Fil. 125, t. 4. 1947. Description. Habit terrestrial, on slopes along streams at lowland forests; rhizome short erect, stout and woody, apex densely scaly, blackish sclerenchyma strands visible in sections; scales dark brown, linear-lanceolate, entire, not clathrate; fronds approximate, stipe not articulate, scaly at base, scales similar to those on rhizome; lamina ovate, pinnate-pinnatifid, catadromous, subleathery, nearly glabrous, only very sparse narrow scales on rachis, costa, and costule; rachis and costa grooved adaxially, not connected to each other; veins free, pinnate, veins of basal pinnules on upper pinnae emerge from the rachis rather than costa, all veins terminating in a prominent hydathode, not reaching frond margin; sori round, dorsally on veinlets near hydathode, indusiate; indusia round, persistent, superior, entire, brownish, thick; sporangia long-stalked, annulus with ca. 14 indurated cells, 32 normal spores in each sporangium; spores monolete, 64.1 +/- 4.5 μm in lateral view, surface with broadly winged wall; 2n = ca. 164. Monotypic.