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| 資料編號: | HK-3313 |
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| 中文名稱: | 無瓣海桑 |
| 學名: | Sonneratia apetala [找同屬植物] |
| 植物科名: (APG新系統) | LYTHRACEAE千屈菜科 [找同科植物] |
| 標室舊系統 | SONNERATIACEAE海桑科[找同科] |
| 生長習性: | 喬木 |
| 原生/外來: | 外來植物 |
| 圖片花色: | yellow |
| 發現開花: | July |
| 生長環境: | 海岸植物 |
| 特別特徵: | 真紅樹( 外來品種)_單葉對生 |
| 圖片果色: | green |
| 資料更新: | 20200714 11:47:42 pm |
| 備註: 海桑 Sonneratia caseolaris -- 花萼通常6裂,葉柄極短，有時不顯著 無瓣海桑Sonneratia apetala--花萼4(-5)裂,葉柄0.5–1.1 cm 據網上資料說,海桑原產地為孟加拉,90年代與無瓣海桑一齊由大陸引入(後悔已遲!),後來在大陸經水路漂流繁殖至本港后海灣一帶,而據本人觀察, 無瓣海桑於8年前更已遠漂至馬灣落腳共兩大棵。source from edmond FoHK Tree, to 12 m tall (15(–20) m elsewhere); twigs slender and pendulous; bark light brown and thin; pneumatophores conspicuous, grey, arising from horizontal roots, up to 1m tall. Leaves sparse, opposite; petioles 0.5–1.1 cm; leaf blade lanceolate, 4–8.5 × 1–3 cm, glabrous, margin entire. Inflorescence mostly 3, in terminal cyme. Flowers small, apetalous, 1.5 – 2 cm. Calyx 4(–5)-lobed, calyx tube cup-shaped during anthesis. Stigma broad, mushroom-shaped at the anthesis. Stamens numerous; filament white, 1 cm long. Ovary 6–8 locular. Fruit an oval berry, green when young, becoming greyish when mature, 1.5 – 2.5 cm, distinctively smaller than other members in Sonneratiaceae; hypanthium flat-expanded. Seeds compactly arranged in the fleshy pulp of the placenta, rusty, mostly “U” or “V”-shaped, or irregular, 90 – 242 per fruit. | |
| 如資料有任何錯誤,歡迎聯絡本會. info@hkcww.org | |
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