双盾木Dipelta floribunda Maxim.
双盾木Dipelta floribunda Maxim.
1. 双盾木（中国高等植物图鉴）双楯（中国树木分类学）图版33：1-4
Dipelta floribunda Maxim. in Bull. Acad. Sci. St. Petersb. 24: 51. 1877; Forb. et Hemsl. in Journ. Linn. Soc. Bot. 23: 357. 1888; Hemsl. in Bot. Mag. 136: t. 8310, 1910; Rehd. in Sarg. Pl. Wils. 1: 118. 1911; Hao in Bot. Jahrb. 68 (5）: 639. 1938; Rehd. Man. Cult. Trees and Shrubs ed. 2, 845. 1940; 中国高等植物图鉴 4: 302, 图6018. 1975.
落叶灌木或小乔木，高达6米；枝纤细，初时被腺毛，后变光滑无毛；树皮剥落。叶卵状披针形或卵形，长4-10厘米，宽1.5-6厘米，顶端尖或长渐尖，基部楔形或钝圆，全缘，有时顶端疏生2-3对浅齿，上面初时被柔毛，后变光滑无毛，下面灰白色，侧脉3-4对，与主脉均被白色柔毛；叶柄长6-14毫米。聚伞花序簇生于侧生短枝顶端叶腋，花梗纤细，长约1厘米；苞片条形，被微柔毛，早落；2对小苞片形状、大小不等，紧贴萼筒的一对盾状，呈稍偏斜的圆形至矩圆形，宿存而增大，成熟时最宽处达2厘米，干膜质，脉明显，下方一对为一前一后，均小，其中一枚卵形，钝头，基部宽，紧裹花梗，长1厘米，另一枚更小，狭椭圆形，长仅6毫米；萼筒疏被硬毛，萼齿条形，等长，长6-7毫米，具腺毛，坚硬而宿存；花冠粉红色，长3-4厘米，筒中部以下狭细圆柱形，上部开展呈钟形，稍呈二唇形，裂片圆形至矩圆形，长约5毫米，下唇喉部桔黄色；花柱丝状，无毛。果实具稜角，连同萼齿为宿存而增大的小苞片所包被。花期4-7月，果熟期8-9月。
产陕西、甘肃、湖北、湖南、广西、四川等地。生于海拔650-2200米的杂木林下或灌丛中。模式标本采自陕西汉中。
《Flora of China》 Vol. 19 (2011)
Dipelta floribunda Maximowicz Bull. Acad. Imp. Sci. Saint-Pétersbourg. 24: 51. 1877.
双盾木 shuang dun mu
Dipelta floribunda var. parviflora Rehder.
Shrubs or small trees, to 6 m tall, deciduous. Branches glandular hairy, becoming glabrous. Petiole 6-14 mm; leaf blade ovate to lanceolate, 4-10 × 1.5-6 cm, midvein white pubescent, base cuneate or obtuse, margin entire, occasionally remotely 2- or 3-dentate at apex, apex acute or long acuminate. Peduncles to 10 mm; ovaries with 4 bracts tightly adnate to base; 2 outer bracts larger, peltate, obscuring sepals at anthesis, accrescent to 20 mm wide when mature, dry membranous, with conspicuous veins; 2 inner bracts smaller, unequal, one ovate, other smaller and narrowly elliptic. Calyx 5-lobed, glandular hairy; lobes linear, 5-7 mm. Corolla white to pink, bilabiate, narrowly cylindrical at base, flaring and campanulate in upper part, 25-40 mm; lower lip with reticulate orange-yellow markings. Ovary pubescent; style filiform, glabrous to sparsely hairy. Achene crowned with persistent calyx, enclosed within 2 accrescent, membranous, winglike, peltate bracts. Fl. Apr-Jul, fr. Aug-Sep.
● Mixed forests, scrub; 600-2200 m. Gansu, Guangxi, Hubei, Hunan, Shaanxi, Sichuan.
Dipelta wenxianensis Y. F. Wang & Lian (Acta Bot. Boreal.-Occid. Sin. 14(6): 91, f. 92. 1994; as seen in the illustration but type specimen not located) and a specimen collected in Gansu (Wenxian: Bikou, D. E. Boufford 37425) with peltate bracts, pilose style, calyx divided to base, and short corolla tube both show intermediate characters between D. floribunda and D. yunnanensis. It is not excluded that other intermediate specimens exist.Dipelta wenxianensis Y. F. Wang & Lian (Acta Bot. Boreal.-Occid. Sin. 14(6): 91, f. 92. 1994; as seen in the illustration but type specimen not located) and a specimen collected in Gansu (Wenxian: Bikou, D. E. Boufford 37425) with peltate bracts, pilose style, calyx divided to base, and short corolla tube both show intermediate characters between D. floribunda and D. yunnanensis. It is not excluded that other intermediate specimens exist.
别名：多花双盾木;双木盾;双盾;狗骨头;狗骨头树;鸡骨头;满山红;千层皮;双楯;多花双盾;鹅耳木;
科名：忍冬科 Caprifoliaceae
属名：双盾木属 Dipelta
1. 双盾木（中国高等植物图鉴）双楯（中国树木分类学）图版33：1-4
Dipelta floribunda Maxim. in Bull. Acad. Sci. St. Petersb. 24: 51. 1877; Forb. et Hemsl. in Journ. Linn. Soc. Bot. 23: 357. 1888; Hemsl. in Bot. Mag. 136: t. 8310, 1910; Rehd. in Sarg. Pl. Wils. 1: 118. 1911; Hao in Bot. Jahrb. 68 (5）: 639. 1938; Rehd. Man. Cult. Trees and Shrubs ed. 2, 845. 1940; 中国高等植物图鉴 4: 302, 图6018. 1975.
落叶灌木或小乔木，高达6米；枝纤细，初时被腺毛，后变光滑无毛；树皮剥落。叶卵状披针形或卵形，长4-10厘米，宽1.5-6厘米，顶端尖或长渐尖，基部楔形或钝圆，全缘，有时顶端疏生2-3对浅齿，上面初时被柔毛，后变光滑无毛，下面灰白色，侧脉3-4对，与主脉均被白色柔毛；叶柄长6-14毫米。聚伞花序簇生于侧生短枝顶端叶腋，花梗纤细，长约1厘米；苞片条形，被微柔毛，早落；2对小苞片形状、大小不等，紧贴萼筒的一对盾状，呈稍偏斜的圆形至矩圆形，宿存而增大，成熟时最宽处达2厘米，干膜质，脉明显，下方一对为一前一后，均小，其中一枚卵形，钝头，基部宽，紧裹花梗，长1厘米，另一枚更小，狭椭圆形，长仅6毫米；萼筒疏被硬毛，萼齿条形，等长，长6-7毫米，具腺毛，坚硬而宿存；花冠粉红色，长3-4厘米，筒中部以下狭细圆柱形，上部开展呈钟形，稍呈二唇形，裂片圆形至矩圆形，长约5毫米，下唇喉部桔黄色；花柱丝状，无毛。果实具稜角，连同萼齿为宿存而增大的小苞片所包被。花期4-7月，果熟期8-9月。
产陕西、甘肃、湖北、湖南、广西、四川等地。生于海拔650-2200米的杂木林下或灌丛中。模式标本采自陕西汉中。
《Flora of China》 Vol. 19 (2011)
Dipelta floribunda Maximowicz Bull. Acad. Imp. Sci. Saint-Pétersbourg. 24: 51. 1877.
双盾木 shuang dun mu
Dipelta floribunda var. parviflora Rehder.
Shrubs or small trees, to 6 m tall, deciduous. Branches glandular hairy, becoming glabrous. Petiole 6-14 mm; leaf blade ovate to lanceolate, 4-10 × 1.5-6 cm, midvein white pubescent, base cuneate or obtuse, margin entire, occasionally remotely 2- or 3-dentate at apex, apex acute or long acuminate. Peduncles to 10 mm; ovaries with 4 bracts tightly adnate to base; 2 outer bracts larger, peltate, obscuring sepals at anthesis, accrescent to 20 mm wide when mature, dry membranous, with conspicuous veins; 2 inner bracts smaller, unequal, one ovate, other smaller and narrowly elliptic. Calyx 5-lobed, glandular hairy; lobes linear, 5-7 mm. Corolla white to pink, bilabiate, narrowly cylindrical at base, flaring and campanulate in upper part, 25-40 mm; lower lip with reticulate orange-yellow markings. Ovary pubescent; style filiform, glabrous to sparsely hairy. Achene crowned with persistent calyx, enclosed within 2 accrescent, membranous, winglike, peltate bracts. Fl. Apr-Jul, fr. Aug-Sep.
● Mixed forests, scrub; 600-2200 m. Gansu, Guangxi, Hubei, Hunan, Shaanxi, Sichuan.
Dipelta wenxianensis Y. F. Wang & Lian (Acta Bot. Boreal.-Occid. Sin. 14(6): 91, f. 92. 1994; as seen in the illustration but type specimen not located) and a specimen collected in Gansu (Wenxian: Bikou, D. E. Boufford 37425) with peltate bracts, pilose style, calyx divided to base, and short corolla tube both show intermediate characters between D. floribunda and D. yunnanensis. It is not excluded that other intermediate specimens exist.Dipelta wenxianensis Y. F. Wang & Lian (Acta Bot. Boreal.-Occid. Sin. 14(6): 91, f. 92. 1994; as seen in the illustration but type specimen not located) and a specimen collected in Gansu (Wenxian: Bikou, D. E. Boufford 37425) with peltate bracts, pilose style, calyx divided to base, and short corolla tube both show intermediate characters between D. floribunda and D. yunnanensis. It is not excluded that other intermediate specimens exist.
