线萼蜘蛛花Silvianthus tonkinensis
中文名（Chinese Name）：线萼蜘蛛花
学名（Scientific Name）：Silvianthus tonkinensis (Gagnep.) Ridsd.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Quiducia tonkinensis Gagnep. Silvianthus bracteatus subsp. clerodendroides (Airy Shaw) H. W. Li Silvianthus clerodendroides Airy Shaw
科属（Family & Genus）：茜草科（Rubiaceae）蜘蛛花属
形态特征（Description）：小灌木或草本，高1-2米或过之，全体无毛；茎圆柱状，中空。叶大，纸质，椭圆形、卵状椭圆形或有时阔椭圆形，长10-30厘米，通常15-25厘米，宽5-20厘米，顶端短尖或短渐尖，基部通常阔楔尖，很少稍钝或微下延，边缘齿缺常不很明显；侧脉每边9-16条，通常约10条，末端连接成边脉，干时两面稍凸起；叶柄长1-4厘米，有时可达7厘米，干时有纵皱纹。聚伞花序密聚成头状，直径1-4厘米，总花梗通常长不及1厘米，但有时可达5厘米；苞片线形，长4-6毫米；花梗长约3毫米；萼管倒圆锥状，长2-3毫米，裂片线形，长9-11毫米，宽1-1.5毫米，常钝头，有纵脉纹；花冠通常黄色或淡红色，间有紫红色（均据采集者记录），冠管长12-13毫米，喉部稍扩大，外面无毛，里面被柔毛，裂片圆，长5-6毫米，里面有小乳突；雄蕊着生在冠管近中部，花药长约4.5毫米；花柱长约11毫米。蒴果倒圆锥状，直径6-9毫米，成熟时紫色；种子黑色，长3-3.5毫米，覆有白色针状条纹。花期3-7月，果期10-12月。
分布（Distribution）：产云南，生于海拔900-1500米处的林下沟谷边。老挝和越南也有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 19 Page 479
Silvianthus tonkinensis (Gagnepain) Ridsdale, Blumea. 24: 42. 1978.
线萼蜘蛛花 xian e zhi zhu hua| Carlemanniaceae | Silvianthus
Quiducia tonkinensis Gagnepain, Bull. Soc. Bot. France 95: 33. 1948; Silvianthus bracteatus J. D. Hooker subsp. clerodendroides (Airy Shaw) H. W. Li; S. bracteatus subsp. tonkinensis (Gagnepain) H. W. Li; S. clerodendroides Airy Shaw.
Subshrubs, 1-2(-4) m tall, glabrous. Stems terete. Petiole 1-4(-7) mm, rugose when dry; leaf blade elliptic, ovate-elliptic, or sometimes broadly elliptic, large, (10-)15-25(-30) × 5-20 cm, drying papery, lateral veins (9 or)10(-16) pairs, joining in an intramarginal vein, slightly prominent on both surfaces when dry, base usually broadly cuneate, rarely slightly obtuse, or slightly decurrent, margin often shallowly dentate-incised, apex acute to shortly acuminate. Cymes 1-4 cm in diam.; peduncles usually shorter than 1 cm, sometimes to 5 cm; bracts linear, 4-6 mm. Flowers heterostylous. Pedicel ca. 3 mm. Calyx tube obconical, 2-3 mm; lobes linear, 9-11 × 1-1.5 mm, longitudinally veined, often obtuse. Corolla usually yellow or pale red, occasionally purplish red (based on literature); tube 1.2-1.3 cm, throat slightly expanded, outside glabrous, inside with soft hairs; lobes orbicular, 5-6 mm, inside papillose. Stamens inserted near middle of corolla tube; anthers ca. 4.5 mm. Style ca. 1.1 cm. Capsule purple at maturity, obconical, 6-9 mm in diam. Seeds black, 3-3.5 mm, white aciculate striate-rugose. Fl. Mar-Jul, fr. Oct-Dec.
Forests in valleys, streamsides in evergreen hillside forests; 900-1500 m. Yunnan [Laos, N Thailand, N Vietnam].
This species was confused with Silvianthus bracteatus by some authors.
（责任编辑：徐晔春）
学名（Scientific Name）：Silvianthus tonkinensis (Gagnep.) Ridsd.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Quiducia tonkinensis Gagnep. Silvianthus bracteatus subsp. clerodendroides (Airy Shaw) H. W. Li Silvianthus clerodendroides Airy Shaw
科属（Family & Genus）：茜草科（Rubiaceae）蜘蛛花属
形态特征（Description）：小灌木或草本，高1-2米或过之，全体无毛；茎圆柱状，中空。叶大，纸质，椭圆形、卵状椭圆形或有时阔椭圆形，长10-30厘米，通常15-25厘米，宽5-20厘米，顶端短尖或短渐尖，基部通常阔楔尖，很少稍钝或微下延，边缘齿缺常不很明显；侧脉每边9-16条，通常约10条，末端连接成边脉，干时两面稍凸起；叶柄长1-4厘米，有时可达7厘米，干时有纵皱纹。聚伞花序密聚成头状，直径1-4厘米，总花梗通常长不及1厘米，但有时可达5厘米；苞片线形，长4-6毫米；花梗长约3毫米；萼管倒圆锥状，长2-3毫米，裂片线形，长9-11毫米，宽1-1.5毫米，常钝头，有纵脉纹；花冠通常黄色或淡红色，间有紫红色（均据采集者记录），冠管长12-13毫米，喉部稍扩大，外面无毛，里面被柔毛，裂片圆，长5-6毫米，里面有小乳突；雄蕊着生在冠管近中部，花药长约4.5毫米；花柱长约11毫米。蒴果倒圆锥状，直径6-9毫米，成熟时紫色；种子黑色，长3-3.5毫米，覆有白色针状条纹。花期3-7月，果期10-12月。
分布（Distribution）：产云南，生于海拔900-1500米处的林下沟谷边。老挝和越南也有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 19 Page 479
Silvianthus tonkinensis (Gagnepain) Ridsdale, Blumea. 24: 42. 1978.
线萼蜘蛛花 xian e zhi zhu hua| Carlemanniaceae | Silvianthus
Quiducia tonkinensis Gagnepain, Bull. Soc. Bot. France 95: 33. 1948; Silvianthus bracteatus J. D. Hooker subsp. clerodendroides (Airy Shaw) H. W. Li; S. bracteatus subsp. tonkinensis (Gagnepain) H. W. Li; S. clerodendroides Airy Shaw.
Subshrubs, 1-2(-4) m tall, glabrous. Stems terete. Petiole 1-4(-7) mm, rugose when dry; leaf blade elliptic, ovate-elliptic, or sometimes broadly elliptic, large, (10-)15-25(-30) × 5-20 cm, drying papery, lateral veins (9 or)10(-16) pairs, joining in an intramarginal vein, slightly prominent on both surfaces when dry, base usually broadly cuneate, rarely slightly obtuse, or slightly decurrent, margin often shallowly dentate-incised, apex acute to shortly acuminate. Cymes 1-4 cm in diam.; peduncles usually shorter than 1 cm, sometimes to 5 cm; bracts linear, 4-6 mm. Flowers heterostylous. Pedicel ca. 3 mm. Calyx tube obconical, 2-3 mm; lobes linear, 9-11 × 1-1.5 mm, longitudinally veined, often obtuse. Corolla usually yellow or pale red, occasionally purplish red (based on literature); tube 1.2-1.3 cm, throat slightly expanded, outside glabrous, inside with soft hairs; lobes orbicular, 5-6 mm, inside papillose. Stamens inserted near middle of corolla tube; anthers ca. 4.5 mm. Style ca. 1.1 cm. Capsule purple at maturity, obconical, 6-9 mm in diam. Seeds black, 3-3.5 mm, white aciculate striate-rugose. Fl. Mar-Jul, fr. Oct-Dec.
Forests in valleys, streamsides in evergreen hillside forests; 900-1500 m. Yunnan [Laos, N Thailand, N Vietnam].
This species was confused with Silvianthus bracteatus by some authors.
（责任编辑：徐晔春）
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