连香树 Cercidiphyllum japonicum

  • Scientific Name: Cercidiphyllum japonicum Siebold & Zucc.
  • Ref: Abhandlungen der Mathematisch-Physikalischen Classe der Königlich Bayerischen Akademie der Wissenschaften. Munich 4(3):238. 1846
  • Chinese Common Name: 连香树 liánxiāng∙shù
  • Japanese Common Name: 桂 (カツラ) katsura
  • Family: Cercidiphyllaceae
  • Genus: Cercidiphyllum
  • Distribution: Forests, forest margins, by streams; 600–2700 m. S and W Anhui, S Gansu, NE Guizhou, SW Henan, Hubei, NW Hunan, N Jiangxi, S Shaanxi, SW Shanxi, Sichuan, NE Yunnan, NW Zhejiang [Japan].
  • Photo: 03/31/2013
Trees, 10--20 m tall. Branchlets glabrous. Leaves dimorphic; leaf blade glabrous or abaxially hairy in axils of basal veins; veins ca. 5--7, abaxially slightly prominent. Long shoot leaves: petiole 1.5--2 cm; leaf blade 3.2--4.5 × 1.9--3.2 cm, ovate, elliptic, or obovate, base rounded, truncate, or slightly cuneate, margin entire or finely serrate, apex acute. Short shoot leaves: petiole 1.4--4.7 cm; leaf blade 3.7--9 × 5--8.3 cm, ovate to reniform, base cordate, margin crenate, apex rounded. Staminate flowers: stamens ca. 9 mm; filaments filiform; anthers pink, 3--4 mm, narrowly oblong, longitudinally dehiscent, apex short apiculate. Pistillate flowers: carpel 1--1.5 cm; stigma red, decurrent, 2-ridged. Follicle brown to black, oblong, 10--18 × 2--3 mm, with a short persistent style. Seeds brown, flat, trapezoidal, 4--5 mm, winged; wing at the proximal end, 3--4 mm. Fl. Apr, fr. Aug. 2n = 38. (Flora of China)

03/26/2015, Hangzhou Botanical Garden

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