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| 資料編號: | HK-20 |
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| 中文名稱: | 細柄蕈樹 |
| 中文別名: | 細齒蕈樹 |
| 學名: | Liquidambar gracilipes [找同屬植物] |
| 異名: | Altingia gracilipes |
| 英文名稱: | Slender Stalk Altingia |
| 植物科名: (APG新系統) | ALTINGIACEAE楓香科 [找同科植物] |
| 標室舊系統 | HAMAMELIDACEAE金縷梅科[找同科] |
| 生長習性: | 喬木 |
| 原生/外來: | 香港原生植物 |
| 特別特徵: | 單葉互生 |
| 資料更新: | 20230129 11:00:14 am |
| 備註: 有關Altingiaceae 楓香科之下三屬 Altingia 蕈樹屬、Semiliquidambar 半楓荷屬、Liquidambar 楓香屬 合併、及整合後其中物種分類處理 ： Ickert-Bond S, Wen J (2013) A taxonomic synopsis of Altingiaceae with nine new combinations. PhytoKeys 31: 21-61. 葉革質，卵狀披針形，長4-7釐米，寬1.5-2.5釐米，先端尾狀漸尖． 中植志英文版：葉邊緣偶有小鈍齒． 中植志中文版：葉全緣；另有變種細齒蕈樹，葉緣有小鈍齒． Thanks Daniel's info hkchecklist 1a.果序具12-30蒴果,近球形,基部截平;葉倒卵狀長圓形--蕈樹 1b.果序具5-7蒴果,倒錐形;葉橢圓狀披針形--20-細柄蕈樹 標室Reference FOC: Trees 5-15 m tall. Young branches yellowish brown to grayish brown; current year branchlets puberulent when young, soon glabrescent. Petiole 5-10 mm; leaf blade oblong, 16-18 × 4-7 cm, leathery, abaxially pale green, sparsely pubescent when young but soon glabrescent, and becoming yellowish brown when dry, adaxially green becoming yellowish green when dry, shiny, and glabrous, midvein abaxially elevated and adaxially impressed, secondary veins 12-16 on each side of midvein and raised on both surfaces, base cuneate, margin undulate-serrate, apex acuminate to bluntly acuminate. Flowers axillary or subterminal, solitary, 4-10 cm in diam. Pedicel 2-10 mm, pubescent; bracteoles 2, ovate to broadly ovate, 1-1.5 × 1.5-2 cm, outside densely yellow sericeous. Sepals 9-11, suborbicular, 2-3(-4) cm in diam., thickly leathery, outside yellowish sericeous, margin membranous, apex rounded to retuse. Petals 5 or 6, white, broadly obovate, 4-5 × 2-3 cm, outside yellowish sericeous, inside glabrous, margin membranous, apex emarginate. Stamens numerous, ca. 1.5 cm, glabrous; outer filament whorl basally slightly connate and adnate to petals. Ovary densely yellowish tomentose, 3-6-loculed with 2-5 ovules per locule; style 3-6, pubescent basally to middle, connate to near apex. Capsule globose to oblate, 2-8 cm in diam., 3-6-loculed with 2-5 seeds per locule, dehiscent from base; pericarp 1-5 mm thick when dry, woody, yellow tomentose; columella persistent. Seeds brown, oblong, laterally compressed, ca. 2.5 cm, shiny. Fl. May-Jun, fr. Aug-Oct. 中國植物誌: 細齒蕈樹 Altingia gracilipes var. serrulata Tutch. FOC已修訂 注：ACC Altingia gracilipes Hemsl.（細柄蕈樹） 常綠喬木，高20米；嫩枝略有短柔毛，乾後灰褐色，老枝灰色，有皮孔；芽體卵圓形，有多數鱗狀苞片，外側略有微毛。葉革質，卵狀披針形，長4-7厘米，寬1.5-2.5厘米，先端尾狀漸尖，尾部長1.5-2厘米，基部鈍或窄圓形；上面深綠色，乾後仍有光澤，下面無毛；側脈5-6對，在上面不明顯，或有時下陷，在下面略突起，網脈不顯著；全緣；葉柄長2-3厘米，纖細，無毛；托葉不存在。 雄花頭狀花序圓球形，寬5-6毫米，常多個排成圓錐花序，生枝頂葉腋內，長6厘米；苞片4-5片，卵狀披針形，長8毫米，有褐色柔毛，膜質；雄蕊多數，近於無柄，花藥倒卵圓形，長1.5毫米，紅色。雌花頭狀花序生於當年枝的葉腋裡，單獨或數個排成總狀式，有花5-6朵；花序柄長2-3厘米，有柔毛；萼齒鱗片狀，子房完全藏在花序軸內，花柱長2.5毫米，先端向外彎曲。頭狀果序倒圓錐形，寬1.5-2厘米，有蒴果5-6個；蒴果不具宿存花柱。種子多數，細小，多角形，褐色。 分佈於浙江南部、福建及廣東，是廣東東部低海拔常綠林裡常見的喬木。葉片卵狀披針形，長尾狀，全緣，果序倒圓錐形，有蒴果5-6個。 樹皮里流出的樹脂含有芳香性揮髮油，可供藥用，及香料和定香之用。 | |
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