Bergera euchrestifolia (Hayata) F.J.Mou, 2023

Mou, Feng-Juan, Hu, Xiu, Ha, Bui Thu & Cuong, Nguyen Manh, 2023, Taxonomic revision of Bergera J. Koenig ex L. (Rutaceae) based on the molecular phylogeny and morphology, European Journal of Taxonomy 860, pp. 141-180 : 155-158

Bergera euchrestifolia (Hayata) F.J.Mou , comb. nov.

urn:lsid:ipni.org:names:77314669-1

Fig. 5

Murraya euchrestifolia Hayata, Icones Plantarum Formosanarum 6: 11 ( Hayata 1916). – Clausena euchrestifolia (Hayata) Kaneh. , Formosa Trees: 97 ( Kanehira 1917). – Chalcas euchrestifolia (Hayata) Tanaka , Journal of the Society of Tropical Agriculture 1: 32 ( Tanaka 1929). – Type: CHINA • Taiwan (Formosa), Nantou (Nantocho Bikei); 15 Jan. 1914; T. Ito s.n.; holotype: TI[TI00011285] image!.

Etymology

The specific epithet refers to the glabrous leaves.

Material examined

CHINA • Sichuan Province, Junlian ; 19 Jun. 1977; Anonymous 60; SM image ! • Xingwen ; 2 Sep. 1977; Xingwen Expedition 77-626; SM image ! • Hunan Province, Xinning , cultivated; 19 Jun. 1986; General Expedition 393; PE image ! • 29 Aug. 1986; cultivated; Collection group 1032; PE image ! • Guangxi Province, Yülin ; 12 May 1959; Y. K. Li 403794; IBK ! • 13 Dec. 1959; S. Q. Zhong A63016 ; IBK ! • Tianyang ; 15 May 1964; Z. Z. Chen 54073; IBK ! • 14 Nov. 2016; Tianyang Collection 451021161114008 LY; GXMG ! • Longzhou ; 21 Oct. 1959; D. A. Huang 61775; IBK ! • Longlin ; 4 Jun. 1977; Longlin Expedition 3-0965; GXMI ! • 15 Apr. 1979; M. F. Qin & S. Q. Lin 02123; IBK ! • 8 Nov. 1980; J. Y. Liang & M. F. Qin K0321 ; IBK ! • 22 Sep. 1983; J. Y. Liang K1272 ; IBK ! • Yacha ; 1985; Z. R. Xu DH4240 ; IBSC ! • 26 Jun. 2017; F. J. Mou 508; SWFC ! • Xincheng ; 10 Nov. 1979; S. Q. Lin 00337; IBK ! • 5 May 1983; C. Z. Gao & G. M. Lan 61260; GXMI ! • 4 Sep. 1984; C. Z. Gao & G. M. Lan 61284; GXMI ! • Rongxian ; 20 Oct. 1975; Rongxian Expidition 75; GXMI ! • S. Y. Tian & Y. M. Li 75; GXMI ! • Bobai ; 20 Apr. 1979; Bobai Medical Research Institute 18803; GXMI ! • Jingxi ; 3 May 2008; W. B. Xu & Y. X. Zhu B0629 ; IBK ! • 29 May 2009; W. B. Xu et al. 09605; IBK ! • 25 Sep. 2010; Y. S. Huang et al. LYJX0731 ; IBK ! • 7 Jun. 2011; Y. S. Huang & D.X. Nong Y0687 ; IBK ! • 15 Apr. 2012; Y. S. Huang Y1236 ; IBK ! • Dizhou ; 19 Oct. 2011; L. Y. Yü et al. YLYJX323 ; GXMG ! • 11 Dec. 2012; D.X. Nong et al. 451025121211022 LY; GXMG ! • Guwen ; 22 Oct. 2011; D. C. Nong et al. YLYJX371 ; GXMG ! • Napo ; 24 Jun. 2010; Y. F. Huang & Y. D. Peng HYF0456; GXMG ! • 31 May 2011; Y. F. Huang & Y. F. Huang HYF0994; GXMG ! • 8 May 2014; Z. Z. Lan et al. 451025140508007 LY; GXMG ! • Anning ; Y. D. Peng 451025141011019 LY; GXMG ! • Pingmeng ; 25 May 2015; D.X. Nong et al. 451026150525015 LY, 451026150525032 LY; GXMG ! • 30 Sep. 2016; F. J. Mou 544; SWFC ! • Baidu ; 18 May 1977; Z. S. Lin 3-50823; GXMI ! • 22 Jun. 2015; F. J. Mou 499; SWFC ! • 26 Dec. 2016; F. J. Mou 553; SWFC ! • Liujiang ; 20 Jun. 2010; W. B. Xu & Y. S. Huang 10863; IBK ! • Guoba ; 21 Nov. 1935; X. P. Gao 56101; IBK!, IBSC ! • 3 Jun. 2006; Baisheng; H. N. Qin et al. 603030; IBK ! • 19 Aug. 2009; W. B. Xu et al. 091192; IBK ! • Yaohuangshan ; 9 Dec. 2017; F. J. Mou 632; SWFC ! • Longhe ; 18 Aug. 2010; Y. F. Huang & Y. F. Huang HYF0707; GXMG ! • Y. F. Huang & G. M. Luo 79835; GXMI ! • Huanjiang ; 15 Nov. 2007; F. Ye & T. Ding 0108016; IBK ! • Xianan ; 29 Apr. 2013; Huanjiang General Expedition 451226130429001 LY; IBK!, GXMG ! • 30 Apr. 2013; Huanjiang General Expedition 451226130430022 LY; IBK!, GXMG ! • Chuanshan ; 29 May 2013; Huanjiang General Expedition 451226130529015 LY; IBK!, GXMG ! • Long’an ; 23 Oct. 1981; X. H. Lu 11603; GXMG ! • 19 Sep. 1990; C. C. Huang & D. R. Liang 00951; GXMI ! • 3 Sep. 2011; J. C. Yang LH0584; IBK ! • Longhushan ; 13 Jul. 2014; Long’an General Expedition 50123140713014 LY; GXMG ! • Dingjiashan ; 3 Sep. 2011; J. C. Yang et al. LH0590; IBK ! • Xinguang ; 15 Sep. 2011; J. C. Yang et al. LH0911; IBK ! • Jiaxiufeng ; 2 Jul. 2012; J. C. Yang & Y. B. Liao LH 2415; IBK ! • Debao, Ma’ai ; 12 May 2016; Debao General Expedition 451024160512012 LY; GXMG ! • Lingyun ; 12 Dec. 2012; Lingyun General Expedition 451027121212004; GXMI!, GXMG ! • 29 Apr. 2013; Lingyun Expedition 451027130429062; GXMG!, GXMI ! • 6 Jun. 2013; Lingyun Expedition 451027130606006; GXMG!, GXMI ! • Sicheng; 7 Jun. 2013; Lingyun Expedition 451027130607004; 12Aug. 2013; 451027130812020; GXMG!, GXMI ! • Luocheng ; 28 Apr. 2013; Luocheng General Expedition 451225130428027 LY; GXMG ! • Tianlin, Langping ; 30 Nov. 2013; Tianlin General Expedition 451029121130043; GXMI ! • Fusui ; 25 Apr. 2015; D.X. Ning & Y. S. Huang 451421150425042 LY; GXMG ! • Changping ; 11 Sep. 2015; D.X. Nong et al. 451421150911079 LY; GXMG ! • Shanwei ; 27 May 2016; D.X. Nong et al. 451421160527015 LY; GXMG ! • Quli ; 9 Sep. 2015; D.X. Nong et al. 451421150909028 LY; GXMG ! • Fangcheng ; 26 Dec. 1943; S. Q Chen 4193; IBSC ! • Guangdong Province, Zhuhai ; 5 Nov. 1973; Yue 73 3022; IBSC ! • Taiwan ; Oct. 1929; S. Saito 7670; L image ! • May 1934; J. L. Gressitt 98; U image ! • Nantou ( Nantocho Bikei ); 15 Jan. 1914; T. Ito s.n.; TI image ! • Wushe ; 18 Jan. 1924; S. Sasaki s.n.; TAI image ! • Fenhuangku ; Dec. 1978; H. N. Yang 1641; L image!, TAI image ! • 2 Dec. 1995; K. C. Yang 4603; HAST image ! • Hsinyi ; Jan. 1993; M. H. Chen et al. 5; L image!, HAST image ! • Shuili ; 13 Nov. 1994; C. I. Peng 16044; HAST image ! • 20 Sep. 1995; L. H. Wu et al. 80; PE image!, HAST image ! • Ren’ai ; 24 Dec. 1995; S. M. Liu 311; HAST image ! • 31 Jan. 1996; C. H. Chen 1573; HAST image ! • 10 Nov. 2011; K. F. Chung 1937; HAST image ! • Liukuei ; Dec. 1961; J. M. Chao 670; L image ! • Pingdong ; 7 Nov. 1916; E. Matuds s.n.; TAI image ! • Gaoxiong ; 18 Dec. 1961; J. M. Chao 670; TAI image ! • T. C. Huang et al. 13892; TAI image ! • 29 Jan. 1989; J. C. Wang 5255; HAST image ! • 22 Jan. 1991; J. C. Wang 6508; HAST image ! • Sanmin ; 13 May 2000; S. C. Liu 430; HAST image ! • Maolin ; 7 May 1995; J. C. Wang 9591; HAST image ! • 29 Jun. 1995; J. C. Wang 9678; HAST image ! • Taoyuan ; May 1994; C. M. Wang W 801 ; L, HAST image ! • 19 May 1992; C. C. Wang 1015; HAST image ! • Puxin ; 1 Jan. 1965; M. T. Kao 3130; TAI image ! • Hualian, Zhuoxi ; 26 Sep. 1995; L. Y. Lin 9; HAST image ! • 27 Sep. 1995; L. Y. Lin 36; HAST image ! • 9 Aug. 2008; P. F. Lu 16683; HAST image ! • Taidong, Hongye ; 26 Feb. 1987; M. T. Kao 10413; TAI image ! • Yanping ; 17 May 1995; S. C. Hsiao 1228; HAST image ! • Jinfeng ; 3 Nov. 2002; S. C. Liu 891; HAST image ! • Miaoli ; 15 Nov. 2002; C. H. Yu 394; HAST image ! • Dahu; Y. Simada 2540 A; HAST image ! • Jiayi ; 8 Dec. 1988; K. C. Yang 3537; TAI image ! • 3 Jul. 1991; J. C. Wang 7004; HAST image ! • Taizhong ; 17 Oct. 2013; K. F. Chung 2123; HAST image !.

MYANMAR • Pegu; S. Kurz 1021; E image!.

PHILIPPINES • Luzon ; Dec. 1915; A.D. E. Elmer 14806; L image ! • Batangas; Aug. 1917; M. Ramos 1919; L image !.

Description

Shrubs or trees, 1.5– 7 m. Branchlets slender, glabrous to slightly pubescent; oil glands swell after drying. Leaves are 5–9-foliolate; rachis fine, puberulent; leaflets ovate to elliptic or rarely lanceolate or obovate, 5–8 × 2–4 cm, nearly glabrous, shiny above even after drying, the lower surface of the midrib is slightly puberulent, margin entire, apex mucronate to acuminate; petiolules ca 3 mm long. Cymes are terminal, many-flowered; flower buds small, ca 4 × 1.4 mm, black dotting few on the upper half. Flowers are 4- or 5-merous; sepals pale yellowish-green, ovate, 0.6–1.5 mm; petals bovate-elliptic, 3–5 mm long, ca 2 mm broad. Stamens are 8 or 10, one shorter after the other, longer ones ca 4.5 mm, nearly as long as the petals when fully expanded; filaments linear, flat, gradually narrowed and acutely pointed; anthers small, roundish, slightly cordate, ca 2–3 mm in diam. Ovaries are pale yellowish-green, oval, constricted at the base toward the broad end; styles cylindric, terete, and often slightly curved; stigmas obscure, altogether ca 3.5 mm long. Berries are red to dark red, globose, 1.0– 1.5 cm in diam., smooth, rather sparingly large pellucid-dotted, 1- or 2-seeded. Seeds are glabrous and crimson-red when mature.

Phenology

Flowering between July and August, while fruiting from November to December.

Distribution and habitat

China: Guangxi (Jingxi, Baise, Debao, Napo, Longlin, Huanjiang, Lingyun, Luocheng, Liujiang, Xincheng, Rongxian, Tianyang, Longzhou, Yulin, and Fangcheng), Guizhou (Anlong, Xingyi, Wangmo, Libo Renhuai, Xishui, Luodian, Zhenfeng, and Xingren), Sichuan (Xinglian and Junlian), Guangdong (Ruyang, Fengkai, and Nan’ao), Hainan (Changjiang), Taiwan (Taoyuan, Nantou, Hualian, Pingdong, Taidong, Jiayi, and Gaoxiong). The species grows in open and well drained forests and thickets, along streams, about alt. 500–1400 m.

Remarks

This plant most closely resembles Bergera crenulata and B. tetramera in appearance, but the calyx lobes are acutely triangular, and the leaflets are not so oblique, lacking crenulation. In this respect, it approaches B. koenigii more closely, although the number of leaflets is fewer and the leaflets are larger and glabrous. It differs from both species in having a smaller flower, an obscure stigma, and a slightly constricted ovary.

Figures

Fig. 5. Bergera euchrestifolia (Hayata) F.J.Mou comb. nov. A. Stem. B. Leaves. C–E. Fruits. F. Seed. Photos taken by Chuang His in Taiwan, China.