资料库编号: Database ID: |
MY-10384 |
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中文名称: Chinese Name: |
董棕 |
中文別名: | 钝齿鱼尾葵 |
学名: Scientific Name: | Caryota obtusa [找同属植物] |
学名2: Syn. Scientific Name: | Caryota obtusidentata Griff. |
英文名称: English Name: | Mountain fishtail |
英文別名: | Giant fishtail |
植物科名: Family Name: | 棕榈科 Arecaceae/Palmae [找同科植物] |
生长习性: Living Behavior | 棕榈类 |
图片花色: | 黄_yellow |
生长环境: Living Environment: | 拍摄于香港 |
原产地: | 中国、印度、老挝、缅甸、泰国 |
输入时间: Input Time: | 201805 |
Remarks: Flora of China: Stems solitary, to 40 m tall, 50-90 cm in diam., often swollen. Leaves borne in a compact crown at top of stem; petioles 1-2 m; rachis 4-5.5 m; primary pinnae 19-22 per side of rachis; secondary pinnae 20-27 per side of secondary rachis, with scarcely jagged margins and blunt apices. Inflorescences borne among leaves, to 6 m; rachillae to 200, 2-2.9 m; male flowers to 15 mm; sepals 5-7 mm; petals yellowish, ca. 14 mm; stamens ca. 80; female flowers to 10 mm; sepals ca. 5 mm; petals ca. 8 mm. Fruits reddish, globose, to 3.5 cm in diam., often 2-seeded. Material of this species was previously misidentified as Caryota urens Linnaeus (FRPS 13(1): 116. 1991). 深圳植物志: 植株乔木状,高达30m。茎单生,直立,直径50-90cm;环状叶痕明显,宽1-1. 2cm,棕黑色至黑色;节间长15-20cm,棕色至灰白色,无毛。叶聚生于茎顶部,5-8片;叶鞘长约2m,棕色至灰白色,边缘具网状的棕黑色纤维;叶柄长约1. 5m,下面圆,上面具沟槽,连同叶轴均被棕黑色毡毛;叶轴略下弯;叶片卵形或长卵形,长4-5m,宽约4m;裂片19-22对;中部的一回叶轴长约1. 8m,基部膨大呈关节状;小裂片20-27对,侧边的小裂片阔楔形至斜楔形,长15-20cm,宽约15cm,先端平或偏斜,波状,具不规则锯齿,外侧有时具长1-3cm的尾尖,顶端的小裂片楔形至阔楔形,长约20cm,宽8-15cm,先端2-3裂。花序生于叶间,为大型圆锥花序,长2-4m,一回分枝;花序梗长约70cm,下垂;苞片5-6枚,长约40cm;花序轴长约1. 5米;分枝长达2m,先端略曲折。雄花:萼片肾形,长约5mm,宽约7mm,边缘具圆齿,背部隆起,连同花瓣均被早落的黑色毡毛;花瓣长圆形至倒卵形,长1. 2-1. 3cm,宽约8mm,先端急尖;花丝长不及1mm,花药长7-8mm;雌花:萼片肾形,长约5mm,宽约6mm,边缘具不规则缺刻;花瓣卵状三角形,长约8mm,宽约6mm,先端急尖;退化雄蕊3,长约5mm,下部与花瓣贴生;子房卵球形,长约7mm,直径约6mm,先端具3棱,柱头小,常2裂,裂片三角形。果球形,直径约2. 5cm,成熟时红色。花期:花期:8月-11月;果期:在深圳未见结果。 深圳植物志: 茎丛生,直径 10-13cm。短穗鱼尾葵 茎单生,直径 20cm 以上。 茎直径 20-35cm;叶生于茎中部以上。鱼尾葵 茎直径 50-90cm;叶聚生于茎顶端。董棕 | |
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