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題 名 | Aspidistra Erecta (Asparagaceae), a New Species from Limestone Areas in Guangxi, China=中國廣西石灰岩地區天門冬科蜘蛛抱蛋屬一新種植物︰直立蜘蛛抱蛋 |
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作 者 | 劉演; 河野淑子; 林春蕊; 許為斌; 彭鏡毅; | 書刊名 | Botanical Studies |
卷 期 | 52:3 2011.07[民100.07] |
頁 次 | 頁367-373 |
分類號 | 374.3 |
關鍵詞 | 天門冬科; 直立蜘蛛抱蛋; 傘柱蜘蛛抱蛋; 中國; 染色體數; 廣西; 核型; 石灰岩植物; 新種; Asparagaceae; Aspidistra erecta; Aspidistra fungilliformis; China; Chromosome number; Guangxi; Karyotype; Limestone flora; New species; |
語 文 | 英文(English) |
中文摘要 | 本文報導特產中國廣西壯族自治區石灰岩地區的蜘蛛抱蛋屬一新種:直立蜘蛛抱蛋(Aspidistra erecta Yan Liu & C.-I Peng)。該新種的花形態與傘柱蜘蛛抱蛋類似,但新種的雌蕊長於花被筒,花柱略彎曲,柱頭外露,明顯可以區別。直立蜘蛛抱蛋另一個重要辨識特徵是具有直立莖,目前已知產於中國的蜘蛛抱蛋屬六十多種植物中僅此一種的莖直立;自2004年以來,學者在越南陸續發現3種具直立莖的蜘蛛抱蛋,但與本新種的許多特徵截然不同,本文針對這4種具有直立莖的蜘蛛抱蛋屬植物製作檢索表以資區別。此外,本文報導直立蜘蛛抱蛋的染色體數目為2n = 38,核型公式為2n = 22m+4sm2SC+12st,並提供直立蜘蛛抱蛋的線繪圖以及其與傘柱蜘蛛抱蛋的彩色照片與地理分布圖以利辨識。 |
英文摘要 | Aspidistra erecta Yan Liu & C.-I Peng (Asparagaceae) is described and illustrated as a new species from the limestone areas in Guangxi Zhuang Autonomous Region, China. It resembles A. fungilliformis Y. Wan in floral shape, but differs in its longer pistil than perianth tube, curvulate style, and exserted stigma. In this amazingly diverse genus, A. erecta distinguishes itself as the only Chinese Aspidistra, of over 60 others, having an upright stem. A somatic chromosome count of 2n = 38 and a karyotype formula 2n = 22m+4sm2SC+12st were determined for A. erecta. The new species is known from only two localities in southwestern Guangxi Zhuang Autonomous Region, near the border with northern Vietnam. Color plates, line drawings and a distribution map are provided to aid in identification. |
本系統中英文摘要資訊取自各篇刊載內容。