taxonID	type	description	language	source
65BAAB5ED9F15F3AA1ED8D2387BB82F5.taxon	description	Figs 3, 4	en	Wei, Hong-Jin, Zuo, Zheng-Yu (2025): Diplazium clivicolum (Polypodiales, Athyriaceae), a new fern species from southern Yunnan, China. PhytoKeys 261: 125-134, DOI: 10.3897/phytokeys.261.149078
65BAAB5ED9F15F3AA1ED8D2387BB82F5.taxon	diagnosis	Diagnosis. Diplazium clivicolum morphologically resembles D. incomptum in terms of rhizome type, lamina division, serration of lobe edge, venation pattern and sori position and shape, but differs by having broader lamina, contracted lamina apex, asymmetric pinna base, oblong-obovate and sometimes imbricate lobes and longer sori.	en	Wei, Hong-Jin, Zuo, Zheng-Yu (2025): Diplazium clivicolum (Polypodiales, Athyriaceae), a new fern species from southern Yunnan, China. PhytoKeys 261: 125-134, DOI: 10.3897/phytokeys.261.149078
65BAAB5ED9F15F3AA1ED8D2387BB82F5.taxon	description	Description. Plants evergreen, medium-sized. Rhizome ascending to erect, with dense, black-brown, stiff, fleshy, long, thick roots, apex densely scaly; scales brown or dark brown, lanceolate, seldom broadly lanceolate, 5 – 8 × 1 – 2 mm, membranous, margins slightly denticulate or nearly entire, with narrow, fragmented black edges. Fronds caespitose, 86 – 106 cm; stipe (37 –) 43 – 53 cm, 3.5 – 6 mm in diam. at base, 2 – 3 mm in diam. near middle, base black-brown, densely covered with scales similar to those on rhizome, above base stramineous, sparsely covered with adpressed, lanceolate scales, upwards stramineous, subglabrous, shallowly grooved adaxially; lamina pinnate-pinnatipartite or pinnate-pinnatisect near base, ovate, 45 – 54 × 38 – 51 cm, apex somewhat abruptly narrowed and elongated acute; pinnae 9 – 10 pairs, lower pairs 16 – 26 × 3 – 4.3 cm, broadest at middle or below, slightly narrowed towards base, alternate or subopposite, ascending, lanceolate, stalked, pinnatilobate to pinnatifid, base asymmetrical with basal adaxial and abaxial lobes alternate, apex long acuminate; basal pair of pinnae slightly shortened, pinnatipartite, 16 – 20 cm, with stalk 4 – 11 mm; second pair of pinnae pinnatipartite or pinnatisect to costa, 20 – 26 cm, with stalk 3.5 – 7 mm, upper pinnae gradually reduced below cuspidate apex; pinna lobes often up to 12 pairs, ascending, approximate, contiguous or imbricate, oblong to oblong-obovate, 12 – 25 × 7 – 11 mm, base often narrowed and cuneate when lamina fully developed, adnate to narrow wings, margins notched, repand, repand-toothed or crenate, apex rounded or rounded-truncate, basal pair of pinna lobes on lower pinnae anadromous, often abruptly reduced, sometimes completely free, narrowly or broadly adnate; veins pinnate, prominent abaxially, visible adaxially, veinlets 5 – 7 pairs, oblique, simple, seldom forked. Lamina thickly herbaceous or papery when dry, green adaxially, yellow-green abaxially, glabrous on both surfaces; rachis and costae stramineous, adaxially shallowly grooved, with abundant squarrose-glandular papillae in grooves, abaxially subglabrous along rachis and with sparse brown long appressed articulate hairs along costae. Sori linear, medial, often up to 9 mm, seldom up to 10 mm, 5 – 7 pairs per lobe, single or double on acroscopic basal veinlet, oblique, from near mid-rib to near margin; indusia brown, linear, membranous, entire, persistent. Spores light brown, reniform to phaseoliform, 22 – 32 μm in polar axis, 40 – 56 μm in equatorial axis, perispore with a few long and low folds, forming a rugate surface, 64 per sporangium.	en	Wei, Hong-Jin, Zuo, Zheng-Yu (2025): Diplazium clivicolum (Polypodiales, Athyriaceae), a new fern species from southern Yunnan, China. PhytoKeys 261: 125-134, DOI: 10.3897/phytokeys.261.149078
65BAAB5ED9F15F3AA1ED8D2387BB82F5.taxon	distribution	Geographical distribution. Currently only found at the type locality, belonging to Xishuangbanna National Nature Reserve (Fig. 5).	en	Wei, Hong-Jin, Zuo, Zheng-Yu (2025): Diplazium clivicolum (Polypodiales, Athyriaceae), a new fern species from southern Yunnan, China. PhytoKeys 261: 125-134, DOI: 10.3897/phytokeys.261.149078
65BAAB5ED9F15F3AA1ED8D2387BB82F5.taxon	etymology	Etymology. The specific name is derived from the Latin term “ clivicolum ”, which means “ dwelling on a slope or hillside ”, referring to its habitat.	en	Wei, Hong-Jin, Zuo, Zheng-Yu (2025): Diplazium clivicolum (Polypodiales, Athyriaceae), a new fern species from southern Yunnan, China. PhytoKeys 261: 125-134, DOI: 10.3897/phytokeys.261.149078
