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資料編號: | HK-898 |
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中文名稱: | 禾串樹_大葉逼迫子 |
學名: | Bridelia insulana [找同屬植物] |
英文名稱: | Prickly Bridelia |
英文別名: | Insular Bridelia |
植物科名: (APG新系統) | PHYLLANTHACEAE葉下珠科 [找同科植物] |
標室舊系統 | EUPHORBIACEAE大戟科[找同科] |
生長習性: | 喬木 |
原生/外來: | 香港原生植物 |
圖片花色: | yellow |
發現開花: | July |
特別特徵: | 枝幹有刺_單葉互生 |
圖片果色: | green |
資料更新: | 20220720 09:56:01 pm |
備註: 禾串樹VS土蜜樹 禾串樹(大葉逼迫子): 嫰枝沒毛(枝,柄都唔多覺有明顯的毛), 樹幹一般有刺, 托葉較短, 側脈不直達葉緣 土蜜樹(逼迫仔):嫰枝有毛, 樹幹沒刺, 托葉較長,側脈直達葉緣 中國植物誌 高達17米,樹幹通直,胸徑達30厘米,樹皮黃褐色,近平滑,內皮褐紅色;小枝具有凸起的皮孔,無毛。葉片近革質,橢圓形或長橢圓形,長5-25厘米,寬1.5-7.5厘米,頂端漸尖或尾狀漸尖,基部鈍,無毛或僅在背面被疏微柔毛,邊緣反卷;側脈每邊5-11條;葉柄長4-14毫米;托葉線狀披針形,長約3毫米,被黃色柔毛。花雌雄同序,密集成腋生的團繖花序;除萼片及花瓣被黃色柔毛外,其餘無毛;雄花:直徑3-4毫米,花梗極短;萼片三角形,長約2毫米,寬1毫米;花瓣匙形,長約為萼片的1/3;花絲基部合生,上部平展;花盤淺杯狀;退化雌蕊卵狀錐形;雌花:直徑4-5毫米,花梗長約1毫米;片與雄花的相同;花瓣菱狀圓形,長約為萼片之半;花盤壇狀,全包子房,後期由於子房膨大而撕裂;子房卵圓形,花柱2,分離,長約1.5毫米,頂端2裂,裂片線形。核果長卵形,直徑約1厘米,成熟時紫黑色,1室。花期3 8月,果期9-11月。 FoHK Tree up to 17 m tall, monoecious; stems scatteringly spinose; branchlets glabrous. Leaves thin-leathery or papery; stipules linear-lanceolate, ca. 3 mm, caducous; petioles 3 – 10 mm; leaf blade elliptic, oblong-elliptic or oblong-lanceolate, 5 – 25 × 1.5 – 7.5 cm, base obtuse, apex acuminate or caudate-acuminate, glabrous or only puberulous abaxially, margin slightly revolute; lateral veins 5 – 11 on each side of midvein. Flowers clustered in axil of leaves or bracts; bracts triangular ca. 1 mm, pubescent. Male flowers: pedicels ca. 2 mm, pubescent; calyx ca. 2 mm, lobes triangular, puberulous abaxially; petals spatulate, ca. 1 mm; filaments connate to middle; disk shallowly cup-shaped; rudimentary ovary ovoid-conical. Female flowers 4 – 5 mm in diam.; pedicels ca. 1 mm; calyx as in male flowers; petals obovate, ca. 1 mm; disk urceolate, enclosing the lower part of ovary; ovary ovoid, styles 2, free, ca. 1.5 mm, bifid at the apex, lobes linear. Drupes oblong-ovoid or ovoid, 9 – 11 × 7 – 8 mm, purple-black when mature, 1-celled, the stalk very stout, 3 – 5 mm. | |
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更多圖片(組員Facebook群組貼圖,只供組員參考): KingSIR 貼圖 | |
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20-898t 枝,柄都唔多覺有明顯的毛 | |
19-898s 柄都唔多覺有明顯的毛 | |
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17-898q 大葉逼迫子側脈不直達葉緣 | |
16-898p 托葉線狀披針形,長約3毫米; 小枝具有凸起的皮孔 | |
15-898o 托葉線狀披針形,長約3毫米 | |
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