禿梗露珠草檢視原始碼討論檢視歷史
| 禿梗露珠草 |
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中文學名:禿梗露珠草 拉丁學名:Circaeaglabrescens (Pamp.)Hand.-Mazz. 別 稱:柳葉菜科 界:植物界 科:柳葉菜科 屬:露珠草屬(Onagraceae) 分布區域:中國湖南西部、 |
禿梗露珠草，別名：光梗露珠草，拉丁文名：Circaea glabrescens (Pamp.) Hand.-Mazz. ，是柳葉菜科、露珠草屬植物，植株高12-80厘米，被鐮狀彎曲的短柔毛，稀無毛；根狀莖上無塊莖。葉狹卵形至闊卵形，基部圓形稀近心形，先端漸尖至短漸尖，邊緣具鋸齒。單總狀花序或基部具分枝，倒卵狀至梨形，基部對稱地漸狹向果梗，果實上無縱溝，但具一淺槽；成熟果實連果梗長4.5-8.5毫米，果梗無毛。圖片取自中國植物圖庫 [1]
禿梗露珠草形態特徵
植株高12-80厘米，被鐮狀彎曲的短柔毛，稀無毛；根狀莖上無塊莖 禿梗露珠草 。
葉狹卵形至闊卵形，長3.7-11厘米，寬1.8-5厘米，基部圓形稀近心形，先端漸尖至短漸尖，邊緣具鋸齒。單總狀花序或基部具分枝，長2-18厘米；花梗與花序軸垂直，無毛，基部有一剛毛狀小苞片；花芽常疏被彎的長毛，稀具短鈎狀毛。
花管長0.9-1.3毫米；萼片粉紅或緣白色，矩圓狀橢圓形至近卵形，長1.8-3.3毫米，寬1.2-1.7毫米，先端急尖或鈍圓，開花時反曲；花瓣粉紅色，扁圓形至闊倒卵形，長1-1.9毫米，寬1.3-2.6毫米，先端倒心形，凹缺深至花瓣長度的約一半，裂片闊圓形；雄蕊伸展，短於花柱；蜜腺不明顯，藏於花管之內。
果實長2.5-3.3毫米，徑1.6-1.8毫米，2室，具2種子，倒卵狀至梨形，基部對稱地漸狹向果梗，果實上無縱溝，但具一淺槽；成熟果實連果梗長4.5-8.5毫米，果梗無毛。花期7-8月，果期8-9月。染色體數n=11。[2]
Circaea glabrescens (Pamp.) Hand.-Mazz., Symb. Sin. 7 (2): 604. 1933; Raven in H L Li, Fl. Taiwan 3: 883. 1977, et Boufford in T. C. Huang, 1. c. ed. 2, 3: 943. 1993; et in Ann. Missouri Bot. Gard. 69: 837, f. 5. 1982; 雲南植物志4: 151, 圖版47 (1-3). 1986. ——Circaea cordata Royle var. glabrescens Pamp., in Nuovo Giorn. Bot. Ital. n. s. 17: 677. 1910.
Plants 12-80 cm tall, pubescent with short, soft, falcately recurved hairs, rarely glabrous. Rhizomes not tuberous. Leaves narrowly to broadly ovate, 3.7-11 × 1.8-5 cm, base rounded or rarely subcordate, margin denticulate, apex acuminate to shortly acuminate. Racemes simple or branched at base, 2-18 cm; flowering pedicel perpendicular to axis of raceme, glabrous, subtended by a setaceous bracteole. Buds commonly pubescent with a few, long, straight to slightly bent hairs, occasionally also with short uncinate hairs. Floral tube 0.9-1.3 mm. Sepals reflexed in flower, pink or greenish white, oblong to nearly ovate, 1.8-3.3 × 1.2-1.7 mm, apex acute or obtuse. Petals pink, oblate to broadly obovate in outline, 1-1.9 × 1.3-2.6 mm, apex obcordate, apical notch ca. 1/2 length of petal; petal lobes broadly rounded. Stamens spreading, shorter than style; nectary wholly within floral tube and inconspicuous. Fruiting pedicel and mature fruit 4.5-8.5 mm. Fruit 2.5-3.3 × 1.6-1.8 mm thick, locules 2, 2-seeded, obovoid to pyriform, tapering smoothly to pedicel, without ribs or sulci but with a shallow groove extending from pedicel. Seed 1 per locule. Fl. Jul-Aug, fr. Aug-Sep. 2n = 22*.
禿梗露珠草生長環境
禿梗露珠草生長於海拔700-2500米的落葉林中。
禿梗露珠草分布範圍
禿梗露珠草 分布在中國湖南西部、湖北西部、四川北部、甘肅東南部、陝西中部和南部至山西西南部，亦間斷分布於台灣（僅見一號標本）。模式標本采自湖北西部。