Clematis parviloba Gard. ex Champ. (1849: 241)

Cheng, Yuan-Hao & Yang, Tusng-Yu Aleck, 2024, Two new taxa of Clematis subsection Pierotianae (Ranunculaceae) in Taiwan, Phytotaxa 662 (1), pp. 19-36 : 28-29

publication ID	https://doi.org/ 10.11646/phytotaxa.662.1.2
DOI	https://doi.org/10.5281/zenodo.14516602
persistent identifier	https://treatment.plazi.org/id/B4478577-C713-F554-FF1F-AA02FE485F7B
treatment provided by	Felipe
scientific name	Clematis parviloba Gard. ex Champ. (1849: 241)
status

Treatment

2. Clematis parviloba Gard. ex Champ. (1849: 241) View in CoL

2a. Clematis parviloba Gard. ex Champ. subsp. bartlettii (Yamam.) T.Y.A. Yang & T.C. Huang (1995: 235) — Clematis bartlettii ( Yamamoto 1930: 101) — Clematis parviloba Gard. ex Champ. var. bartlettii (Yamam.) W.T. Wang (2000: 405) . Type:— TAIWAN. Ilan County, Nanao Township, Tuchang to Mt. Taipinshan, H.H. Bartlett 6011 (holotype: TAI!; isotypes: TAI!, US!). ( Fig. 1B View FIGURE 1 )

Clematis matsudai Hayata , in scheda; TAI!; US!.

Phenology: —Flowering from June to October; fruiting between July to December.

Distribution: —Endemic to Taiwan, mainly in the central mountains, between 1,200 –2,600 m elevations, in open areas and at forest margins.

Chinese name:—ƋRLJ線®

Specimens examined:— TAIWAN. Taoyuan City: Fushing District, Kasenao, S.Y. Lu et al. 2032, 24 Jul. 1974 (TAIF). Hsinchu County: Chienshih Township, Cinsbu, S.C. Wu 2922, 7 Sep. 2001 (TAI), Chenxibao, Y.H. Cheng et al. 2852, 6 Nov. 2023 (TNM), Mt. Litungshan, S.C. Liu & H.M. Chang 1507, 28 Aug. 2003 (TAIF, TNM), Mamei forest road, Y.H. Cheng et al. 2487, 30 Nov. 2022 (TNM); Chutung Township, T. Suzuki 20757, 17 Oct. 1940 (TAI); Wufeng Township, Talu forest road, C.T. Chao 1486, 1 Oct. 2010 (TNM), Hsiakolo trail, C.I. Hwang 6, 22 Sep. 2002 (TNM). Miaoli County: Taian Township, Mt. Chunghsuehshan, Y. Tateishi et al. 21243, 28 Sep. 1984 (TAI), Kuaishan trail, Y.H. Cheng et al. 2840, 5 Nov. 2023 (TNM). Taichung City: Hoping District, Mt. Hsuehshan, T.C. Huang et al. 7269, 1 Sep. 1973 (TAI), Lishan, T.Y.A. Yang & S.O. Ou 2476, 5 Sep. 1985 (TNM), T.Y.A. Yang & G.S.Wang 4222, 2 Oct. 1988 (TNM), T.Y.A. Yang & C.H. Chuang 11541, 21 Oct. 1998 (TNM), T.Y.A. Yang 2941, 25 Apr. 1986 (TNM), 6184, 17 Sep. 1993 (TNM), 9602, 10 Oct. 1997 (TNM), Lishan park, T.Y.A. Yang & N.T. Wu 2599, 19 Oct. 1985 (TNM), T.Y.A. Yang et al. 4066, 5 Jun. 1988 (TNM), 6407, 15 Nov. 1995 (HAST, TNM), 7599, 10 Oct. 1996 (TNM), Ssuyuan–Shengkuang, T.Y.A. Yang & H.M. Lin 2335, 19 Sep. 1996 (HAST, TNM), Ssuyuanyakuo, W.C. Leong et al. 2396, 15 Aug. 2001 (HAST), C.M. Wang 8218, 14 Sep. 2005 (TNM), T.Y.A. Yang 2454, 5 Sep. 1985 (TNM), C.I Peng 5606, 14 Aug. 1983 (TNM), C.Y. Hwang 99, 7 Sep. 2003 (TNM), Wuling, C.I Peng et al. 12066, 24 Sep. 1988 (HAST), C.I Hwang 61, 12 Sep. 1998 (TNM), S.W. Chung 29, 30 Aug. 1994 (TNM), Weiwu Bridge Station, T.Y.A. Yang et al. 9563, 10 Oct. 1997 (TNM), Techi–Lishan, S.T. Chiu 4963, 22 Sep. 1998 (TNM), Sungho, H.F. Yen 18819, 23 Dec. 1998 (TNM). Nantou County: Hsinyi Township, Chingjing farm, C.I Peng 6100, 28 Oct. 1983 (HAST), Divine Tree forest road, G.S. Wang 4193, 9 Sep. 1988 (TNM), Juiyenhsi, K.C. Huang & C.F. Chen 326, 25 Nov. 2007 (TNM), Prov. # 14A Hwy 15.6 Km, T.Y.A. Yang et al. 24355, 6 Sep. 2015 (TNM), Y.H. Cheng et al. 384, 29 Nov. 2018 (TNM), Kuankao–Tungpu, T.Y.A. Yang et al. 3431, 25 Apr. 1987 (TNM), Tungpu Hotel, T.Y.A. Yang et al. 4187, 25 Aug. 1988 (TNM), Stream Shalihsienhsi, T.Y.A. Yang & K.H. Wang 3701, 29 Aug. 1987 (TNM), 3717, 30 Aug. 1987 (TNM), 3834, 25 Jun. 1988 (TNM), Patungkuan, T.Y.A. Yang et al. 3356, 29 May. 1987 (TNM), 5970, 2 Apr. 1992 (TNM); Luku Township, Sunlinksea road, Y.H. Cheng et al. 752, 10 Sep. 2019 (TNM), Hsitou, C.E. Cheng 8100, 28 Sep. 1975 (PPI), T.Y.A. Yang et al. 3157, 14 Sep. 1986 (TNM), T.Y.A. Yang & F.S. Hsu 2976, 26 Apr. 1986 (TNM), Y.H. Cheng et al. 638, 3 Aug. 2019 (TNM), 1854, 6 Apr. 2021 (TNM), P.F. Lu 10420, 4 Sep. 2005 (TAIF), Y.K. Chen 228, 4 Oct. 1987 (HAST), Mt. Fonghuangshan, T.Y.A. Yang et al. 21538, 9 Mar. 2009 (TNM), P.H. Lin et al. 79, 18 Jan. 2014 (TNM); Jenai Township, Sungkang, T.Y.A. Yang et al. 3222, 28 Nov. 1986 (TNM), Meifeng, C.I Peng et al. 14443, 9 Sep. 1991 (HAST), S.T. Chiu 3839, 2 Oct. 1996 (TNM), T.Y.A. Yang et al. 9743, 22 Nov. 1997 (TNM), H. Ohashi 12494, 17 Oct. 1982 (TAI), C.Y. Hwang 124, 10 Nov. 2003 (TNM), C.H. Liu et al. 321, 29 Oct. 2002 (HAST, TNM), C.N. Wang et al. 604, 22 Sep. 1997 (HAST), S.H. Wu & I.C. Chen 748, 30 Dec. 1997 (HAST), S.C. Hsiao 178, 25 Dec. 1987 (TNM), T.G. Lammers 8466, 9 Sep. 1991 (HAST), Y.C. Kao et al. 264, 22 Nov. 1997 (HAST), Meifeng–Sungkang, T.Y.A. Yang 3229, 28 Nov.1986 (TNM), Sungkang–Tsuifeng, T.Y.A. Yang 2501, 9 Sep. 1985 (TNM), Nengkuo National Historical trail, C.Y. Chang 1536, 24 Oct. 2015 (TNM), Tunyuan, Mt. Weishangshan, T.Y.A. Yang et al. 25372, 12 Nov. 2018 (TNM), Tsuifeng–Meifeng, P.F. Lu 18939, 27 Sep. 2009 (HAST). Kaohsiung City: Taoyuan District, Melian forest road, K.P. Lo 235, 26 Aug. 2002 (PPI). Ilan County: Luodong Township, S. Sasaki s.n., Oct. 1928 (TAIF); Nanao Township, Lake Shenmihu, M.W. Jian 149, 15 Aug. 2003 (HAST); Tatung Township, Chiaping forest road & Szuchi forest road, C.H. Lin et al. 634, 21 Aug. 2000 (HAST, TNM), Prov. #7 Hwy, T.Y.A. Yang & C.L. Chen 7572, 27 Sep. 1996 (TNM), T.Y.A. Yang & Y. Kadota 14034, 1 Mar. 2002 (TNM), T.Y.A. Yang et al. 12250, 24 Nov. 1999 (TNM), 25638, 5 Aug. 2019 (TNM), Y.H. Cheng et al. 664, 6 Aug. 2019 (TNM), 1697, 17 Sep. 2020 (TNM), Prov. #8 Hwy, Y.H. Cheng et al. 1631, 4 Aug. 2019 (TNM), Piyanan, Y. Yamamoto s.n., Sep. 1925 (TAI), Mt. Taipingshan, C.C. Chuang 4822, 27 Aug. 1962 (HAST, TAI), Lake Yuanyanghu, S.W. Chung et al. 4553, 5 Sep. 2001 (TNM), Mingchih–Chilan, J.C. Wang et al. 10787, 15 Sep. 1998 (TNM), Tatung Village, H.F. Yen 15, 19 Jul. 2000 (TNM), Nanshan– Ssuyanyakou, C.M. Wang & H.M. Lin, 2313, 19 Sep. 1996 (HAST, TNM), Ssuyanyakou, T.Y.A. Yang & S.O. Ou 2454, 5 Sep. 1985 (HAST, TNM), T.Y.A. Yang & G.S. Wang 4222, 2 Oct 1988 (HAST, TNM), Y.P. Cheng et al. 8574, 1 Jan. 2007 (TAIF). Hualien County: Hsiulin Township, Hsinpaiyang, C.Y. Chang 788, 09 Oct. 2015 (TNM), Lanshan, C.I. Chiu s.n., 15 Aug. 1970 (PPI); Zhuoxi Township, Dakun, C.F. Hsieh 330, 15 Sep. 1984 (TAI).

2b. Clematis parviloba Gard. ex Champ. subsp. shengzhenii Y.H. Cheng & T.Y.A. Yang , subsp. nov. ( Fig. 1D View FIGURE 1 , 7 View FIGURE 7 , 10A–C View FIGURE 10 )

Type:— TAIWAN, New Taipei City, Peitou District , Yangmingshan, Y. H. Cheng et al. 1575, 28 Jul. 2020 (holotype: TNM; isotypes: HAST, PPI, TAI, TAIF, TI, TNM) .

Diagnosis:— Clematis parviloba Gard. ex Champ. subsp. shengzhenii was previously identified as C. parviloba subsp. bartlettii , but can be distinguished by the number of stamens (92–118 vs. 40–63), the shape of the filaments (linear vs. fusiform), the length of the anthers (0.9–1.3 mm vs.1.4–1.8 mm), and distribution at lower elevation (500–1100 m vs. 1,200 –2,600 m). Additionally, C. parviloba subsp. shengzhenii and C. parviloba subsp. parviloba differ in leaflet margin (serrate vs. entire), and length of the anthers (0.9–1.3 mm vs.1.9–2.3 mm).

Description: — Vines, woody, scandent, perennial; caulicle olive green, sulcate, velutinous. Mature woody stems brown, becoming glabrous. Leaves ternately to biternately compound, phyllotaxis alternate in seedlings or suckers, opposite at maturity. Leaflets 3–9, chartaceous, ovate to elliptic, apex acute, base obtuse to cuneate, margin entire and usually serrate, unlobed or 3-lobed; both surfaces sparsely puberulous; terminal leaflet 30.6–74.2 mm long, 9.54–32.9 mm wide; lateral leaflets 20.5–42.6 mm long, 10.5–29.9 mm wide, asymmetrical. Petiole and petiolules tendril-like, sparsely pubescent. Inflorescences cymes, axillary; flowers 1–9 or more. Pedicels densely velutinous. Bracts and bracteoles leaf-like, decussate on peduncle and pedicels. Flowers spreading, 30.2–44.1 mm in diameter. Sepals 4, white, revolute, 14.5–21.7 mm long, 6.4–8.5 mm wide, ovate to elliptic, apex mucronulate, base acute, adaxially glabrous, abaxial densely velutinous. Stamens 92–118, glabrous, 10.7–14.9 mm long, filaments white, linear, anthers white, turning black after dehiscence, 0.9–1.2mm, narrowly ellipsoid, longitudinally dehiscent, connective shorter than pollen sacs. Carpels 22–37, sericeous, 9.2–11.9 mm long. Achenes brown or black, 3.8–4.8 mm long, 2.1–3.7 mm wide, ovoid to globose, densely white puberulous. Styles persistent, 18.7–39.5 mm, with pale yellow or white hairs.

Phenology: —Flowering from June to August, and fruiting between July to October.

Distribution: —Endemic to Taiwan; at forest margins below 500–1100 m elevation in northern Taiwan, i.e., Taipei City, New Taipei City, and Taoyuan City ( Fig. 6 View FIGURE 6 ).

Etymology: —The specific epithet " shengzhenii " is named after Prof. Dr. Sheng-Zhen Yang (fi勝K) as a token of gratitude for guiding the first author in plant taxonomy.

Chinese name:—勝KLJ線®

Specimen examined:— TAIWAN: Taipei City: Peitou District, Chutzuhu, P.F. Lu 29780, 13 Aug. 2016 (TAIF), S. Sasaki s.n., 30 Aug 1931 (TAI), Erhtzuping, T.Y.A. Yang et al. 26096, 18 Sep. 2020 (TNM), Mt. Tatunshan, C.H. Liu 204, 7 Aug. 2002 (HAST, TNM), T.Y.A. Yang & M. Tamura 2880, 8 Apr. 1986 (TNM), Mt. Tatunshan main Peak, C.T. Chao 1877, 29 Jul. 2011 (TCF), Tatun National park, T.Y.A. Yang et al. 26188, 21 Aug. 2021 (TNM), Tatunshan parking area, T.Y.A. Yang et al. 26044, 5 Aug. 2020 (TNM), Y.H. Cheng 1703, 20 Jun. 2020 (TNM), 1809, 21 Aug. 2020 (TNM), Y.H. Cheng & K.B. Huang 1912, 8 Feb. 2021 (TNM), S.Y. Lan 1910, 21 Aug 2021 (TNM), Hsiaoyukeng, T.Y.A. Yang 19401, 17 Jul. 2007 (TNM), Houshanchi, Y. Tateishi 17490, 11 Aug. 1984 (TAI). New Taipei City: Jinshan District, Tsuitsui valley, P.F. Lu 10364, 28 Aug. 2005 (TAIF); Sanxia District, Mt. Shizaitoushan, P.H. Chen 1838, 20 Oct. 2018 (PPI); Xizhi District, Daisensan. T. Nakamura 6027, 7 Aug. 1941 (TAI); Wulai District, Mt. Agiokushan, T. Suzuki 18888, 30 Oct. 1934 (TAI). Taoyuan City: Fushing District, Hsuehwunao, C.F. Chen 5533, 5 Nov. 2014 (TAIF), Tungyenshan, B. Bartholomew 7889, 13 Aug. 1998 (HAST), C.H. Ou 12359, 13 Oct. 1993 (TCF), Y.H. Cheng 1835, 24 Aug. 2021 (TNM).