taxonID	type	description	language	source
4AA1A088C224534DA0715B045867AE23.taxon	description	Figs 4, 5, 6 Chinese name: 安吉铁线莲 (Ān Jí Tiě Xiàn Lián)	en	Xu, Pan, Li, Jun-Ping, Wang, Xian-Ting, Zhang, Fen-Yao, Liang, Wei-Qing, Xie, Wen-Yuan, Yu, Li-Peng, Chen, Feng, Lou, Ke-Lang, Zhong, Jian-Ping, Pu, Jin-Bao, Chen, Zheng-Hai (2025): A new species of Clematis sect. Tubulosae (Ranunculaceae) from Zhejiang, East China. PhytoKeys 267: 93-108, DOI: 10.3897/phytokeys.267.158140
4AA1A088C224534DA0715B045867AE23.taxon	diagnosis	Diagnosis. C. liana sp. nov. is morphologically similar to C. urticifolia Nakai ex Kitag., but differs by the following characters: perennial herb with hermaphroditic flowers (vs. subshrub with polygamous flowers); floral bracts narrowly ovate to narrowly ovate-lanceolate, subentire, 5 – 8 mm long (vs. linear-lanceolate or triangular, 1.2 – 5 mm long); flowers bisexual, urceolate (vs. urceolate or tubular-urceolate); calyx creamy white or pale yellow with pale purple apices (vs. entirely purple); stamens 16 – 18 (vs. 12 – 16), filaments narrowly oblong, 5 – 6 mm long, glabrous (vs. lanceolate-linear, 7 – 9 mm long, pilose apically), anthers narrowly lanceolate, 2.9 – 3.6 mm long (vs. linear, 4 – 5 mm long), pollen grain 25.0 μm in diam. (vs. 21.8 μm); carpels 19 – 20 (vs. ca. 12); stems and petioles sharply longitudinal-edged or narrowly winged (vs. blunt longitudinal-ridged); leaflet blade broadly ovate, ovate-circular to subcircular, apex shortly acuminate (vs. broadly rhombic to obovate, apex acuminate).	en	Xu, Pan, Li, Jun-Ping, Wang, Xian-Ting, Zhang, Fen-Yao, Liang, Wei-Qing, Xie, Wen-Yuan, Yu, Li-Peng, Chen, Feng, Lou, Ke-Lang, Zhong, Jian-Ping, Pu, Jin-Bao, Chen, Zheng-Hai (2025): A new species of Clematis sect. Tubulosae (Ranunculaceae) from Zhejiang, East China. PhytoKeys 267: 93-108, DOI: 10.3897/phytokeys.267.158140
4AA1A088C224534DA0715B045867AE23.taxon	description	Description. Perennial herb, 0.5 – 1.0 m tall. Roots woody, brownish. Stems erect, robust, green, sharply 6 - ridged or narrowly winged, deeply 6 - sulcated, initially sparsely white-puberulent, glabrescent at maturity. Leaves ternate (upper leaves simple, trilobate to subtrilobate); petioles stout, up to 20 cm long, adaxially deeply sulcated, abaxially sharply-ridged, basally slightly widened and connate to opposite petiole, often tinged purple, initially sparsely pubescent, glabrescent at maturity; terminal leaflets chartaceous, broadly ovate to suborbicular, 8 – 14 × 5 – 14 cm, shallowly 3 - lobed or undivided apically, apex acute to shortly acuminate, base rounded or cuneate, adaxially green, subglabrous (veins impressed), abaxially pale green (veins prominent, sparsely pubescent along veins), margin irregularly dentate (teeth tip short-pointed), petiolules 3 – 4 cm long, often tinged purple; lateral leaflets smaller, asymmetrical, petiolules 3 – 8 mm long, base tinged purple. Inflorescence cymose 1 – 3 - flowered, fasciculate, axillary, subsessile; involucral bracts ovate to oblanceolate, asymmetrical, apex 2 - or 3 - dentate, 12 – 15 mm long (including stalk), puberulous; floral bracts narrowly ovate to narrowly ovate-lanceolate, subentire, puberulous, 5 – 8 mm (including stalk); stalk adaxially base often tinged purple. Flowers bisexual, urceolate, ca. 1.8 cm in diam., fragrant; pedicels stout, 2 – 9 mm long, 1.5 – 1.7 mm in diam., short-pubscent; sepals 4, imbricate, erect, creamy white or pale yellow with pale purple apices, narrowly ovate or lanceolate, ca. 15 × 5.5 mm, apex acuminate, recurved outward, outer surface densely appressed-puberulent (velutinous on margins), inner surface glabrous, 3 - veined; stamens 16 – 18, 9 – 11 mm; filaments narrowly oblong, S-shaped, 5 – 6 mm, white, glabrous; anthers narrowly lanceolate, 2.9 – 3.6 mm, connective sparsely pilose, apex finely pointed; pollen pantoporate, 25.0 μm in diam. Carpels 19 – 20, 2.5 – 3.0 mm, densely white sericeous-villous. Achenes slightly compressed, ovoid, 3.1 – 4.2 × 2.2 – 3.7 mm, reddish-brown, sparsely appressed-puberulous; persistent styles 1.1 – 2.5 cm, plumose.	en	Xu, Pan, Li, Jun-Ping, Wang, Xian-Ting, Zhang, Fen-Yao, Liang, Wei-Qing, Xie, Wen-Yuan, Yu, Li-Peng, Chen, Feng, Lou, Ke-Lang, Zhong, Jian-Ping, Pu, Jin-Bao, Chen, Zheng-Hai (2025): A new species of Clematis sect. Tubulosae (Ranunculaceae) from Zhejiang, East China. PhytoKeys 267: 93-108, DOI: 10.3897/phytokeys.267.158140
4AA1A088C224534DA0715B045867AE23.taxon	etymology	Etymology. The species epithet liana honors Professor Li Gen-you (李根有), a renowned botanist at Zhejiang A & F University, who first recognized the taxonomic distinctiveness of this species during field surveys in 2013.	en	Xu, Pan, Li, Jun-Ping, Wang, Xian-Ting, Zhang, Fen-Yao, Liang, Wei-Qing, Xie, Wen-Yuan, Yu, Li-Peng, Chen, Feng, Lou, Ke-Lang, Zhong, Jian-Ping, Pu, Jin-Bao, Chen, Zheng-Hai (2025): A new species of Clematis sect. Tubulosae (Ranunculaceae) from Zhejiang, East China. PhytoKeys 267: 93-108, DOI: 10.3897/phytokeys.267.158140
4AA1A088C224534DA0715B045867AE23.taxon	distribution	Distribution and ecology. Clematis liana is currently known from Anji County (Huzhou City) and Lin’an District (Hangzhou City) in Zhejiang Province, and She County (Huangshan City) in Anhui Province, eastern China. It grows in gravel accumulations under deciduous broad-leaved forests within valleys or on mid-elevation mountain slopes, at altitudes of 640 – 1,463 m.	en	Xu, Pan, Li, Jun-Ping, Wang, Xian-Ting, Zhang, Fen-Yao, Liang, Wei-Qing, Xie, Wen-Yuan, Yu, Li-Peng, Chen, Feng, Lou, Ke-Lang, Zhong, Jian-Ping, Pu, Jin-Bao, Chen, Zheng-Hai (2025): A new species of Clematis sect. Tubulosae (Ranunculaceae) from Zhejiang, East China. PhytoKeys 267: 93-108, DOI: 10.3897/phytokeys.267.158140
