 |
|
| 資料編號: | HK-3232 |
|---|---|
| 中文名稱: | 大花水蓑衣 |
| 學名: | Hygrophila megalantha [找同屬植物] | [完整學名] |
| 異名: | Hygrophila salicifolia var. megalantha |
| 植物科名: (APG新系統) | ACANTHACEAE爵床科 [找同科植物] |
| 標室舊系統 | ACANTHACEAE爵床科[找同科] |
| 生長習性: | 草本 |
| 原生/外來: | 香港原生植物 |
| 圖片花色: | purple_blue |
| 發現開花: | Oct |
| 生長環境: | 水生植物 |
| 特別特徵: | 單葉對生 |
| 資料更新: | 20240511 10:25:42 pm |
| 備註: Hygrophila salicifolia var. megalantha (Merr.) H. S. Lo & L. D. Chou (sourced from COL) GBIF: Hygrophila megalantha is syn of Hygrophila ringens 中國植物誌 草本。高30-60厘米，直立，分枝，無毛；莖4棱形。葉狹矩圓狀倒卵形至倒披針形，長4-8厘米，寬8-15毫米，先端圓或鈍，基部漸狹，邊全緣，側脈纖細，不明顯。花少數，1-3朵生於葉腋內；苞片矩圓狀披針形，頂端鈍，長約1厘米，小苞片狹矩圓形，長約6毫米；萼長1.2-1.4厘米，裂片狹線狀披針形，尾狀漸尖，約與萼管等長，有短睫毛；花冠紫藍色，長可達2.5厘米，外被疏柔毛，冠管下部圓柱形，上部腫脹，上唇鈍，下唇短3裂。蒴果長柱形，長1-1.5厘米。花期冬季。 生於江邊的濕地上。模式標本採自廣州河南珠江邊。 本種與水蓑衣Hygrophila salicifolia相近，只是個體大，不少人認為應予歸併。 FoHK Perennial herbs, 30–60 cm tall. Stems quadrangular, glabrous. Petioles 0.5–1.5 cm, glabrous; leaf blades narrowly oblong‑obovate to lanceolate, 4–9 × 1.5–2.5 cm, base attenuate, decurrent onto the petioles, apex rounded or obtuse, margin entire or undulate, glabrous, lateral veins 5–7 pairs. Flowers several‑fasciculate in leaf axil, sessile. Bracts oblong‑lanceolate, 0.8–1 × 0.3–0.5 cm, apex acute, ciliate; bracteoles oblong‑lanceolate, ca. 6 × 2 mm, apex acute, ciliate. Calyx 1.4–1.6 cm, 5‑lobed to the middle; lobes linear‑lanceolate, apex acuminate, sparsely hispid‑ciliate. Corolla purplish blue, 2–2.5 cm, pilose outside; tube‑base cylindric, ca. 7 mm; limb 2‑lipped, upper lip ovate‑oblong, ca. 1.2 × 0.8 cm, apex emarginate, lower lip oblong, ca. 1.3 × 0.8 cm, 3‑lobed, lobes ovate, ca. 4 × 2 mm. Stamens 4, didynamous; filaments glabrous, the longer pair ca. 1.4 cm, the shorter pair ca. 0.7 cm, anther‑thecae ovate, ca. 1.5 mm. Ovary glabrous, styles filiform, ca. 1.6 cm, slightly hairy, stigma quite unequally bilobed. Capsule oblong, 1.4–1.6 cm, glabrous, 12–16‑seeded. Seeds ovate, ca. 1.5 × 1.5 mm, glabrous. Ecology: Wet places. Flowering & fruiting: Oct.–Jan. of the following year. Notes: The species was reported as Hygrophila quadrivalvis Nees previously (Check List HK Plants 253. 2002; 87. 2004). | |
| 如資料有任何錯誤,歡迎聯絡本會. info@hkcww.org | |
3-3232c
2-3232b
1-3232a