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資料編號: | HK-528 |
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中文名稱: | 孝順竹_蓬萊竹(TBC) |
學名: | Bambusa glaucescens [找同屬植物] |
異名: | Bambusa multiplex |
英文名稱: | Hedge Bamboo |
植物科名: (APG新系統) | POACEAE禾本科 [找同科植物] |
標室舊系統 | POACEAE禾本科[找同科] |
生長習性: | 喬木_竹類 |
原生/外來: | 外來植物 |
特別特徵: | 香港竹類誌收錄61種 |
資料更新: | 20240509 12:26:22 am |
備註: TBC: ID from name tag only GBIF: Bambusa glaucescens is syn of Bambusa multiplex 中國植物誌 竿高4-7米,直徑1.5-2.5厘米,尾梢近直或略彎,下部挺直,綠色;節間長30-50厘米,幼時薄被白蠟粉,並於上半部被棕色至暗棕色小刺毛,後者在近節以下部分尤其較為密集,老時則光滑無毛,竿壁稍薄;節處稍隆起,無毛;分枝自竿基部第二或第三節即開始,數枝乃至多枝簇生,主枝稍較粗長。竿籜幼時薄被白蠟粉,早落;籜鞘呈梯形,背面無毛,先端稍向外緣一側傾斜,呈不對稱的拱形;籜耳極微小以至不明顯,邊緣有少許繸毛;籜舌高1-1.5毫米,邊緣呈不規則的短齒裂;籜片直立,易脫落,狹三角形,背面散生暗棕色脫落性小刺毛,腹面粗糙,先端漸尖,基部寬度約與籜鞘先端近相等。末級小枝具5-12葉;葉鞘無毛,縱肋稍隆起,背部具脊;葉耳腎形,邊緣具波曲狀細長繸毛;葉舌圓拱形,高0.5毫米,邊緣微齒裂;葉片線形,長5-16厘米,寬7-16毫米,上表面無毛,下表麵粉綠而密被短柔毛,先端漸尖具粗糙細尖頭,基部近圓形或寬楔形。假小穗單生或以數枝簇生於花枝各節,並在基部託有鞘狀苞片,線形至線狀披針形,長3-6厘米;先出葉長3.5毫米,具2脊,脊上被短纖毛;具芽苞片通常1或2片,卵形至狹卵形,長4-7.5毫米,無毛,具9-13脈,先端鈍或急尖;小穗含小花(3 )5-13朵,中間小花為兩性;小穗軸節間形扁,長4-4.5毫米,無毛;穎不存在;外稃兩側稍不對稱,長圓狀披針形,長18毫米,無毛,具19-21脈,先端急尖;內稃線形,長14-16毫米,具2脊,脊上被短纖毛,脊間6脈,脊外有一邊具4脈,另一邊具3脈,先端兩側各伸出1被毛的細長尖頭,頂端近截平而邊緣被短纖毛;鱗被中兩側的2片呈半卵形,長2.5-3毫米,後方的1片細長披針形,長3-5毫米,邊緣無毛;花絲長8-10毫米,花藥紫色,長6毫米,先端具一簇白色畫筆狀毛;子房卵球形,長約1毫米,頂端增粗而被短硬毛,基部具一長約1毫米的子房柄,柱頭3或其數目有變化,直接從子房頂端伸出,長5毫米,羽毛狀。成熟穎果未見。 FoHK Culms suberect or apically slightly drooping, 4–7 m, 1.5–2.5 cm in diam.; internodes 30–50 cm, thinly white powdery, distally stiffly deciduously brown or dull brown hairy, especially densely so below nodes; wall usually rather thin; nodes slightly prominent, glabrous; branching from 2nd or 3rd node up. Branches several to many, clustered, subequal or central slightly dominant. Culm sheaths deciduous, trapezoid, initially thinly white powdery, glabrous, asymmetrically arched, slanted along outer side, apex asymmetrically arched, convex; auricles very small to inconspicuous, oral setae few; ligule 1–1.5 mm, irregularly dentate; blade deciduous, erect, narrowly triangular, base nearly as wide as sheath apex, abaxially with scattered, stiff, dull brown hairs, adaxially scabrous, apex acuminate. Leaves 5–12 per ultimate branch; leaf blade abaxially pale glaucous, adaxially bright green, linear, 5–16 × 0.7–1.6 cm, abaxially densely pubescent, adaxially glabrous. Pseudospikelets solitary or several clustered at nodes of flowering branches, linear to linear-lanceolate, 3–6 cm; prophylls ca. 3.5 mm, 2-keeled, keels ciliolate; gemmiferous bracts usually 1 or 2, ovate to narrowly ovate, 4–7.5 mm, glabrous, 9–13-veined, apex obtuse or acute; florets (3–)5–13, middle ones fertile; rachilla segments flat, 4–4.5 mm, glabrous. Glumes absent; lemma asymmetrical, oblong-lanceolate, ca. 1.8 cm, glabrous, 19–21-veined, apex acute; palea linear, 1.4–1.6 cm, keels ciliolate, 6-veined between and 4-veined on one side and 3-veined on other side of keels, apex subtruncate, ciliolate, with a fine hairy tip on each side; lodicules 3, anterior 2 subovate, 2.5–3 mm, posterior narrowly lanceolate, 3–5 mm, margins glabrous. Filaments 0.8–1 cm; anthers purple, ca. 6 mm, apex penicillate. Ovary ovoid, ca. 1 mm, base with stalk ca. 1 mm, apex thickened and hispidulous; stigmas 3 or variable in number, ca. 5 mm, directly exserted from ovary apex. Mature caryopsis unknown. | |
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9-528i | |
8-528h | |
7-528g | |
6-528f | |
5-528e | |
4-528d | |
3-528c | |
2-528b | |
1-528a | |