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| 資料編號: | HK-127 |
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| 中文名稱: | 香港樫木 |
| 學名: | Prasoxylon hongkongense [找同屬植物] | [完整學名] |
| 異名: | Dysoxylum hongkongense |
| 英文名稱: | HongKong Pencilwood |
| 植物科名: (APG新系統) | MELIACEAE楝科 [找同科植物] |
| 標室舊系統 | MELIACEAE楝科[找同科] |
| 生長習性: | 喬木 |
| 原生/外來: | 香港原生植物 |
| 圖片花色: | white |
| 特別特徵: | 一回羽狀複葉_香港稀有及珍貴植物 |
| 圖片果色: | red_green |
| 資料更新: | 20230102 12:31:32 am |
| 備註: 果有些似臀果木 有幾分似白欖, 但白欖是奇數複葉 香港樫木與常綠臭椿比較相似，惟香港樫木的小葉數量較少，小葉葉柄較短，及葉基沒有明顯偏斜．(thanks Daniel Hang's info) FoHK Tree, to 25 m tall. Young branches yellow pubescent to subglabrous. Leaves imparipinnate or paripinnate, 20–40 cm or longer; leaflets 9–16, opposite, subopposite, or alternate; petiolules 0.5–1.5 cm; blades subleathery, long-elliptic, 5–27 × 3–7 cm, base oblique, apex obtuse to shortly acuminate, margin entire, glabrous on both surfaces; midvein slightly impressed adaxially and prominent abaxially, lateral veins 8–15 on each side of midvein. Panicles axillary near apex of branch, 12–25 cm, pubescent, with tawny appressed hairs. Pedicels stout, 2–4 mm. Calyx shallowly cupular, 5-lobed, pubescent abaxially. Petals 5, white, long-elliptic, 5–6 × ca. 2 mm, tawny pubescent abaxially. Staminal tube ca. 4 mm, hairy abaxially, apex truncate to undulate-crenulate; anthers 8, ellipsoidal, inclusive. Disk tubular, obtusely dentate, apex brightly yellow ciliate. Ovary 3-locular, densely covered with yellow silky hairs. Style ca. 2 mm, flat, glabrous; stigma flat, disciform, glabrous. Capsule pyriform to ellipsoidal, ca. 4 cm in diam. Seeds brown, long ellipsoidal, to 2.5 cm, arillate. 中國植物誌 喬木，高可達25米；嫩枝被黃色短柔毛或近無毛。葉長20-30厘米或更長，有小葉10-16枚；小葉近革質，對生、近對生或互生，長橢圓形，長7-15（-18）厘米，寬3-6.5厘米，頂端鈍或短漸尖，基部楔形或圓形，偏斜，兩面無毛，側脈每邊8-15條，葉面中脈稍下凹，側脈平坦，背面中脈和側脈均隆起；小葉柄長6-10毫米。 圓錐花序生於枝頂之葉腋，長12-25厘米，被黃褐色、緊貼的短柔毛；花梗短，粗壯，長2-4毫米，被黃褐色短柔毛；花萼淺杯狀，5齒裂，外被短柔毛；花瓣5，白色，長橢圓形，長5-6毫米，寬約2毫米，外被紅褐色、緊貼的短柔毛；雄蕊管頂端截平或有波狀小鈍齒，高約4毫米，外面被毛，花藥8，長圓形，內藏；花盤管狀，有鈍齒，頂端有亮黃色的緣毛；子房3室，密被黃色絲毛，花柱無毛，長約2毫米，柱頭無毛，扁平，盤狀。蒴果梨形，直徑約4厘米；種子長橢圓形，栗褐色，長達2.5厘米，有假種皮。花期5-7月和10-12月，果期11-12月和3-6月。 | |
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