四药门花Loropetalum subcordatum
中文名（Chinese Name）：四药门花
学名（Scientific Name）：Loropetalum subcordatum (Benth.) Oliv.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Tetrathyrium subcordatum Benth.
科属（Family & Genus）：金缕梅科（Hamamelidaceae）继木属
形态特征（Description）：常绿灌木或小乔木，高达12米；小枝无毛，干后暗褐色。叶革质，卵状或椭圆形，长7-12厘米，宽3.5-5厘米，先端短急尖，基部圆形或微心形，上面深绿色，发亮，下面秃净无毛；侧脉6-8对，在上面下陷，在下面突出，网脉干后在上面下陷，在下面稍突起；全缘或上半部有少数小锯齿；叶柄长1-1.5厘米；托叶披针形，长5-6毫米，被星毛。头状花序腋生，有花约20朵，花序柄长4-5厘米；苞片线形，长3毫米。花两性，萼筒长1.5毫米，被星毛，萼齿5个，矩状卵形，长2.5毫米；花瓣5片，带状，长1.5厘米，白色；雄蕊5个，花丝极短，花药卵形；退化雄蕊叉状分裂；子房有星毛。蒴果近球形，直径1-1.2厘米，有褐色星毛，萼筒长达蒴果2/3。种子长卵形，长7毫米，黑色；种脐白色。
分布（Distribution）：分布于广东沿海及广西龙州。
用途（Use）：FOC Vol. 9 Page 33
Loropetalum subcordatum (Bentham) Oliver, Hooker’s Icon. Pl. 15: t. 1417. 1883.
四药门花 si yao men hua| Hamamelidaceae | Loropetalum
Tetrathyrium subcordatum Bentham, Fl. Hongk. 133. 1861.
Shrubs or trees to 12 m tall; branchlets glabrous. Stipules lanceolate, 5–6 mm, stellately pubescent; petiole 1–1.5 cm; leaf blade ovate or elliptic, 7–12 × 3.5–5 cm, discolorous, base rounded or subcordate, margin entire or sparsely serrulate, apex acute; lateral veins 6–8 on each side, abaxially prominent, glabrous, adaxially impressed. Inflorescence axillary, 14–25-flowered; peduncle 4–5 cm; bracts linear, ca. 3 mm. Sepals ca. 1.5 mm, stellately pubescent. Petals ca. 1.5 cm; anthers ovoid; staminodes divergent, teeth oblong-ovate, ca. 2.5 mm. Ovary stellately pubescent. Persistent floral cup ca. 2/3 as long as capsule; capsules subglobose, 10–12 mm in diam., adnate to floral cup for 1/4–1/2 of their length. Seeds 6–7 mm. Fl. Apr–Jun, fr. Jul–Aug.
Roadsides; 100--200 m. Guangdong, SW Guangxi (Longzhou Xian), Guizhou.
This species is listed as endangered by the IUCN (as Tetrathyrium subcordatum).
（责任编辑：徐晔春）
学名（Scientific Name）：Loropetalum subcordatum (Benth.) Oliv.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Tetrathyrium subcordatum Benth.
科属（Family & Genus）：金缕梅科（Hamamelidaceae）继木属
形态特征（Description）：常绿灌木或小乔木，高达12米；小枝无毛，干后暗褐色。叶革质，卵状或椭圆形，长7-12厘米，宽3.5-5厘米，先端短急尖，基部圆形或微心形，上面深绿色，发亮，下面秃净无毛；侧脉6-8对，在上面下陷，在下面突出，网脉干后在上面下陷，在下面稍突起；全缘或上半部有少数小锯齿；叶柄长1-1.5厘米；托叶披针形，长5-6毫米，被星毛。头状花序腋生，有花约20朵，花序柄长4-5厘米；苞片线形，长3毫米。花两性，萼筒长1.5毫米，被星毛，萼齿5个，矩状卵形，长2.5毫米；花瓣5片，带状，长1.5厘米，白色；雄蕊5个，花丝极短，花药卵形；退化雄蕊叉状分裂；子房有星毛。蒴果近球形，直径1-1.2厘米，有褐色星毛，萼筒长达蒴果2/3。种子长卵形，长7毫米，黑色；种脐白色。
分布（Distribution）：分布于广东沿海及广西龙州。
用途（Use）：FOC Vol. 9 Page 33
Loropetalum subcordatum (Bentham) Oliver, Hooker’s Icon. Pl. 15: t. 1417. 1883.
四药门花 si yao men hua| Hamamelidaceae | Loropetalum
Tetrathyrium subcordatum Bentham, Fl. Hongk. 133. 1861.
Shrubs or trees to 12 m tall; branchlets glabrous. Stipules lanceolate, 5–6 mm, stellately pubescent; petiole 1–1.5 cm; leaf blade ovate or elliptic, 7–12 × 3.5–5 cm, discolorous, base rounded or subcordate, margin entire or sparsely serrulate, apex acute; lateral veins 6–8 on each side, abaxially prominent, glabrous, adaxially impressed. Inflorescence axillary, 14–25-flowered; peduncle 4–5 cm; bracts linear, ca. 3 mm. Sepals ca. 1.5 mm, stellately pubescent. Petals ca. 1.5 cm; anthers ovoid; staminodes divergent, teeth oblong-ovate, ca. 2.5 mm. Ovary stellately pubescent. Persistent floral cup ca. 2/3 as long as capsule; capsules subglobose, 10–12 mm in diam., adnate to floral cup for 1/4–1/2 of their length. Seeds 6–7 mm. Fl. Apr–Jun, fr. Jul–Aug.
Roadsides; 100--200 m. Guangdong, SW Guangxi (Longzhou Xian), Guizhou.
This species is listed as endangered by the IUCN (as Tetrathyrium subcordatum).
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