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中国瑞香科植物——柳叶荛花的确认及补充描述(英文)



全 文 :植 物 分 类 学 报 45 (3): 413–414(2007) doi:10.1360/aps06089
Acta Phytotaxonomica Sinica http://www.plantsystematics.com
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Received: 31 May 2006 Accepted: 23 October 2006
Supported by the National Natural Science Foundation of China, Grant Nos. 40332021, 30625004, 30420120049; and the U.S.
National Science Foundation, Grant No. DEB-0321846; Yunnan Provincial Government through an Award for Prominent
Conoributions in Science and Technology to Prof. WU Zheng-Yi in 2001 (KLB-WU-02).
* Author for correspondence. E-mail: .
Taxonomic note on Wikstroemia salicina (Thymelaeaceae)
1ZHANG Yong-Hong 2 David E. BOUFFORD 1SUN Hang*
1(Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, the Chinese Academy of Sciences,
Kunming 650204, China)
2(Harvard University Herbaria, 22 Divinity Avenue, Cambridge, MA 02138, U.S.A.)
Abstract The occurrence of Wikstroemia salicina (Lévl.) Lévl. & Blin (Thymelaeaceae) in
China is confirmed and a new description is provided based on the isotype specimen at the
Harvard University Herbaria (A).
Key words Wikstroemia salicina (Lévl.) Lévl. & Blin, Thymelaeaceae, China.
Wikstroemia salicina (Lévl.) Lévl. & Blin (Rehder, 1916; Léveillé, 1917) was based on
Daphne salicina Lévl. (Léveillé, 1915). Because of limited access to resources outside of
China prior to the time the treatment of Thymelaeaceae was published in Flora Reipublicae
Popularis Sinicae (Huang, 1999), W. salicina was treated as a species of uncertain status. The
inaccessibility of the type specimen (holotype, E; isotype, A!), or even to a photo of it, and the
incomplete original description, was remedied recently when we were able to examine the
isotype specimen of D. salicina in the Harvard University Herbaria (A) and note its
distinguishing features. Wikstroemia salicina is distinct from other species of Wikstroemia
Spreng. It is most closely related to W. ligustrina Rehder (Rehder, 1934), but is readily
distinguished by the narrower leaves with firmer texture, pubescence on both surfaces and
revolute margins, pubescent inner perianth and the linear solitary disk scale at the base of the
pubescent ovary. Wikstroemia salicina is described below and many useful taxonomic
characters that previous researchers have not described are added.
Wikstroemia salicina (Lévl.) Lévl. & Blin in Sarg., Pl. Wilson. 2: 535. 1916.——Daphne
salicina Lévl., Bull. Intl. Geogr. Bot. 25: 42. 1915. Type: China. Yunnan (云南): Paturages
du lé-ma-tchouan, alt. 3200 m, 1912-06 (or 1913-06), E. E. Maire s.n. (holotype, E; isotype,
A!).
柳叶荛花
Shrubs ca. 1.5 m tall, aspect like Salix L. Young branches terete, grayish white,
pubescent; older branches brown, glabrate. Buds subglobose, yellowish white, pubescent.
Leaves alternate, narrowly lanceolate, entire, firmly chartaceous, 1.5–2.5 cm long, 4–8 mm
wide, both surfaces densely grayish white, pubescent, margin revolute, apex acute or obtuse,
adaxial midrib concave, abaxial midrib elevated; lateral nerves 4–6 pairs, adaxially faintly
visible, abaxially elevated; petiole pubescent, ca. 1.5 mm long. Inflorescences head-like or
short spikes, terminal, 8- to 20-flowered; shortly pedunculate, pubescent. Pedicels pubescent,
1–2 mm long. Flowers: perianth 1–1.5 cm long, pubescent on both surfaces, abaxially densely
grayish white pubescent, adaxially sparsely pubescent, pubescence chiefly on 8 longitudinal
veins inside tube of perianth; corolla yellow, lobes 4, ovate, apex obtuse. Stamens 8, in 2
series, inserted in perianth tube, upper ones below throat, lower ones in middle of tube;
anthers ca. 1.2 mm long; filaments ca. 0.3 mm long; disc scale developed on one side,
Acta Phytotaxonomica Sinica Vol. 45 414
quadrate, base thick, upper portion thin, ca. 1.2 mm long, usually 2-lobed; ovary narrowly
ovoid-ellipsoid, densely pubescent, ca. 1.5 mm wide, stigma capitate; fruit fusiform, covered
by persistent perianth.
References
Huang S-C (黄蜀琼). 1999. Wikstroemia salicina (Lévl.) Lévl. & Blin. In: Flora Reipublicae Popularis Sinicae
(中国植物志). Beijing: Science Press. 52 (1): 330–331.
Léveillé H. 1915. Flora missionnaria asiatica. Bulletin de Geographie Botanique 25: 42.
Léveillé H. 1917. Catalogue des Plantes du Yun-Nan, avec Renvoi aux Diagnoses Originales, Observations et
Descriptions dEspèces Nouvelles. Le Mans. 272.
Rehder A. 1916. Thymelaeaceae. In: Sargent C S ed. Plantae Wilsonianae. Portland: Dioscorides Press. 2: 535.
Rehder A. 1934. Notes on the ligneous plants described by Léveillé from eastern Asia. Journal of the Arnold
Arboretum 15: 104.
中国瑞香科植物——柳叶荛花的确认及补充描述
1张永洪 2David E. BOUFFORD 1孙 航*
1(中国科学院昆明植物研究所生物多样性与生物地理学重点实验室 昆明 650204)
2(Harvard University Herbaria, 22 Divinity Avenue, Cambridge, MA 02138, U.S.A)

摘要 确认了中国瑞香科Thymelaeaceae存疑植物柳叶荛花Wikstroemia salicina (Lévl.) Lévl. & Blin为中
国植物记录, 同时补充描写了一些其重要的分类学特征。
关键词 柳叶荛花; 瑞香科; 中国