矮高山櫟
矮高山櫟 |
中文名:矮高山櫟 界:植物界 門:被子植物門 Angiospermae 綱:雙子葉植物綱 Dicotyledoneae 亞 綱:原始花被亞綱 Archichlamydeae 目:山毛櫸目 Fagales 科:殼斗科 Fagaceae 屬:櫟屬 Quercus 種:矮高山櫟 中文學名:Quercus monimotricha Hand.-Mazz. |
矮高山櫟(ǎi gāo shān lì,學名:Quercus monimotricha)為殼斗科櫟屬的植物。分布於緬甸以及中國大陸的雲南、四川等地,生長於海拔2,000米至3,500米的地區,一般生於陽坡和山脊,尚未由人工引種栽培。 [1]
目錄
矮高山櫟形態特徵
常綠灌木,高0.5—2米。小枝近輪生,具灰褐色簇生絨毛。
葉長橢圓形或倒卵形,長2-(3—4)厘米,寬1-2.5(-3)厘米,頂端鈍圓,具刺尖或短尖,基部淺心形至圓形,邊緣有長刺狀鋸齒,有時全緣,幼時密生灰黃色絨毛,老時葉面沿脈疏生絨毛,背面密被污褐色絨毛,側脈4—7對;
葉柄長約3毫米,密被毛。殼斗常單生或兩枚對生,有長約6毫米的總梗,淺碗形,包圍堅果基部,直徑約1厘米,高3-4毫米;苞片小,長約1毫米,在口緣處伸出,被灰褐色柔毛。
堅果卵形,直徑約1厘米,高約1—1.3厘米,無毛或頂端微有毛,果臍凸起。花期5—6月。 [2]
分類文獻
Quercus monimotricha Hand. -Mazz. Symb. Sin. 7: 41. 1929; A. Camus, Chenes 1: 388. 1936-38, Atlas 1. Pl. 34. f. 16-26. 1934; 中國高等植物圖鑑1: 452.圖904. 1972; Y. C. Hsu et H. W. Jen in Acta Phytotax. Sin. 14(2): 81. 1976; 雲南植物志2: 243.圖107, f. 7-9. 1979;中國樹木志2: 2348.圖1188. 9. 1985.——Q. semecarpifolia Smith. var. rufescens Schott. in Bot. Jahrb. 47: 642. 1912. ——Q. spinosa David var. monimotricha Hand. -Mazz. in Sitz. Akad. Wiss. Wien. 129. 1925. p. p.
英文介紹
Quercus spinosa David ex Franchet var. monimotricha Handel-Mazzetti, Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 1925: 129. 1925.
Shrubs (0.5-)1(-2) m tall, evergreen. Branchlets nearly whorled, with brown fascicled indumentum. Petiole ca. 3 mm, densely pubescent; leaf blade elliptic to obovate, 2-3.5 × 1.2-3 cm, with conspicuously stipitate fascicled and floccose hairs when young, abaxially retaining scattered fascicled hairs but sometimes subglabrescent, adaxially glabrescent but base of fascicled hairs remaining evident (under a hand lens), base rounded to shallowly cordate, margin with long spiniform teeth, sometimes entire, apex obtuse to mucronate; secondary veins 4-7 on each side of midvein; tertiary veins abaxially inconspicuous. Infructescence rachis 5-10 mm; cupules 1 or 2. Cupule shallowly cupular, 3-4 × ca. 10 mm, covering base of nut; bracts ovate-lanceolate, ca. 1 mm, grayish brown tomentose, patent at rim of cupule. Nut ovoid, 1-1.3 × 0.8-1 cm, glabrous or apex glabrescent; scar ca. 4 mm in diam., slightly raised, stylopodium ca. 1.5 mm in diam. Fl. Jun-Jul, fr. Sep of following year.
2000-3500 m. W Sichuan, NW Yunnan [Myanmar]
矮高山櫟生長環境
生於海拔2300—34O0米陽坡或山頂脊處。[3]