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資料編號: | HK-2017 |
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中文名稱: | 綬草 |
學名: | Spiranthes sinensis [找同屬植物] |
英文名稱: | Ladies Treeses |
英文別名: | Maiden`s Tresses |
植物科名: (APG新系統) | ORCHIDACEAE蘭科 [找同科植物] |
標室舊系統 | ORCHIDACEAE蘭科[找同科] |
生長習性: | 草本 |
原生/外來: | 香港原生植物 |
圖片花色: | pink_white |
發現開花: | May_Apr |
資料更新: | 20190508 11:35:50 pm |
備註: 2017a相片攝於馬來西亞.柴娃娃植物網群組成員林睿麒提供.萬分感激. 香港綬草:花軸,苞片,萼片及子房有腹狀毛,柱頭呈盾狀,邊緣呈三尖形,蕊喙狹小,環形,連接至花粉塊中部,粘盤不明顯;花與花之間的度大約是120度,即係三朵花形成一圈 綬草:花軸,苞片,萼片及子房光滑無毛,柱頭近球形,蕊喙呈銳角三角形狀,尖端分裂,粘盤橢圓形,花與花連續排列形成螺旋 多數生長於淡水沼澤或者低地溪流的兩旁 (Thanks HungTsun Cheng's info) 綬草已被列入《瀕危野生動植物物種國際貿易公約》(CITES)的附錄Ⅱ中,並被列入中國《國家重點保護野生植物名錄(第二批)》中,為Ⅱ級保護植物 (thanks Kwong Chung-man's info) 深圳植物誌: 植株高10-30cm。根2-6條,直徑2-3mm,肉質,簇生於莖基部。莖較短,近基部生2-5枚葉。葉片寬條形或寬條狀披針形,極罕為狹長圓形,直立伸展,長4-21cm,寬0. 4-1. 3cm,基部收狹為柄狀的抱莖的鞘,先端急尖或漸尖,上部被腺狀柔毛至無毛。總狀花序直立,長10-25cm,無毛;花序軸長4-10cm,其上著生多數呈緊密螺旋狀排列的花;花苞片卵狀披針形,下部的長於子房,先端長漸尖;花梗連子房長4-6mm;花小,紫紅色或粉紅色,罕見白色;萼片的下部靠合,無毛,中萼片狹長圓形,舟狀,長3-5mm,寬1-2mm ,先端稍尖,與花瓣靠合呈兜狀,側萼片偏斜,披針形,長4-6mm,寬2-3mm,先端稍尖;花瓣斜菱狀長圓形,先端鈍,與中萼片等長但較薄;唇瓣寬長圓形,凹陷,長3-5mm,寬2-3mm,先端鈍,前半部上面具長硬毛,邊緣具強烈皺波狀的囓齒,基部凹陷呈淺囊狀,囊內具2枚胼胝體;子房被腺毛,柱頭2。花期:花期:4-8月。 。 FoHK: Notes: The type specimen (S. Y. Hu 13658, K, holotype; A, CUHK, isotype) was collected from Tai Po in 1975. Further to Hu and Barretto’s (1976) observations, Sun (1996a, Amer. J. Bot. 83: 252–260) discussed the allopolyploid origin of this self-fertile species, which is a tetraploid (chromosome number ≈60) with putative parents being S. sinensis and S. spiralis (L.) Chevall. Spiranthes sinensis(綬草) is a pollinator-dependent outcrosser, whereas S. hongkongensis(香港綬草) is a pollinator-independent selfer, flowering 2–3 weeks earlier than S. sinensis (Sun 1996b, Conservation Biol. 10: 785–795). Spiranthes sinensis is glabrous(無毛) on floral parts and its flower colour is normally pink and occasionally white, in a prominent spiral(突出的螺旋) spike, whereas S. hongkongensis has grandular hairs on its bracts, sepals and ovaries in the creamy white flowers, inconspicuously(不明顯) arranged on a spiral spike. Rare occurrence of natural hybrids have also been observed, featuring both pinkish flowers and glandular hairs on floral parts. | |
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