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Quercus acutissima

麻櫟

cultivated
Quercus acutissima Carruth.
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名彙資訊

學名發表文獻

Carruth., The journal of the Linnean Society of London. Botany 6: 33. 1862.  (J. Linn. Soc., Bot.)

台灣首次記錄發表文獻

Liu, Illustrations of native and introduced ligneous plants of Taiwan 1: 613. fig. 536. 1960.  (Ill. Nat. Intr. Lign. Pl. Taiwan, 台灣木本植物圖誌)

異名

各語言俗名

  • 柞樹. 櫟.
  • Sawtooth oak. Low-level oak.

參考資料

  • Yang, A list of plants in Taiwan . 1982.  (List Pl. Taiwan, 台灣植物名彙)
  • Liu, Illustrations of native and introduced ligneous plants of Taiwan . 1961.  (Ill. Nat. Intr. Lign. Pl. Taiwan, 台灣木本植物圖誌)

特徵描述

生活型

tree

形態特徵

  • Deciduous trees monoecious, to 17 m high; trunks up to 0.6 m in diameter; bark fissured; young branchlets densely soft-hairy, glabrescent.
  • Leaves alternate, oblong, oblong-lanceolate or broadly lanceolate, 12–15 cm long, 3.5–4 cm broad, acute at apex, obtuse or slightly oblique at base, echinate, yellowish-hairy beneath when young, soon becoming glabrous, lateral veins 15–18 pairs; petioles 1.5–2 cm long.
  • Staminate flowers in pendulous catkins, 3–4 mm long, 3–4.5 mm broad, yellowish; perianth usually 5-lobed, membranaceous, slightly tomentose outside, glabrous inside; stamens usually 3–7 (2–10), filaments 2.5–3 mm long, anthers 1–1.2 mm long, 0.8–1 mm broad. Pistillate flowers 2–3, often in catkins, 1 mm long, 1 mm broad; perianth with reddish-pink hairs at margins; styles 3, pointed, light yellowish-green; ovary 3-celled.
  • Cupules large, cup-like, 2 cm long, 3.6 cm broad, densely covered with long, widely spreading, recurved scales; nuts globose, 2.1 cm long, 1.8–2 cm broad, brown.

物候

Flowering from December to March in Taiwan; fruits maturing from October to November.

分布

  • 台灣 : introduced, at Taipei Botanical Garden and at Yangmingshan near Taipei.
  • 世界 : Widely distributed in the eastern Himalayas, mainland China, Myanmar, N Thailand, Vietnam, Korea and Japan.

引證標本

TAIPEI: Taipei Bot. Garden, Liao 11209.

引用文獻

典藏標本

共有 4 份典藏標本

    131483
    林敬瀨 Lin
    台北 Taipei
    036703
    林敬瀨 Lin
    台北 Taipei
    036704

    115668
    Shigeyoshi Suzuki
    台北 Taipei

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