耳唇對葉蘭

耳唇對葉蘭
原圖鏈接來自好看視頻

中文名:耳唇對葉蘭拉丁學名:Listera pseudonipponica Fukuyama 界:植物界門:被子植物門綱:單子葉植物綱目:微子目科:蘭科屬:對葉蘭屬拼音:ěr chún duì yè lán

耳唇對葉蘭(ěr chún duì yè lán，學名 Neottia pseudonipponica (Fukuyama) Szlachetko，俗名：假日本對葉蘭，異名：Listera pseudonipponica)，蘭科，對葉蘭屬植物。產於台灣西部（台中）。生於林下。 ^[1]

耳唇對葉蘭形態特徵

植株高約20厘米。莖較纖細，基部具鞘，約在中部或中部以上具2枚對生葉，葉以下部分無毛，葉以上部分具短柔毛。

原圖鏈接來自好看視頻

葉片卵狀半圓形或近腎狀半圓形，長2-2.5厘米，寬3-3.5厘米，先端渾圓並具尾狀尖頭，基部近心形。總狀花序具8朵排列疏鬆的花；花序軸具短柔毛；

原圖鏈接來自好看視頻

花苞片卵狀披針形，長約1毫米，先端近急尖，向上逐漸變短；花梗和子房為苞片長度的2-3倍，均無毛；中萼片線狀倒披針形，長約3.5毫米，寬不到1毫米，先端稍鈍，近基部處狹窄，具1脈；

側萼片線狀長圓形，與中萼片近等長，先端稍鈍，基部不變窄；花瓣線狀長圓形，長約3.5毫米，寬約0.7毫米，先端鈍，具1脈；唇瓣近倒卵形，長約5毫米，自中部向上頂端逐漸擴大而成倒心形，寬約4毫米，先端2裂；

裂片長約2.5毫米，兩裂片中間具短尖頭；唇瓣基部有耳狀小裂片；耳狀小裂片倒披針形，長約1.7毫米，先端圓鈍，基部狹窄，具1脈；蕊柱近直立，長約2.5毫米。花期不詳。

分類文獻

Listera pseudonipponica Fukuyama in Bot. Mag. Takyo 49: 665, 733. 1935; S. Y. Hu in Quart. J. Taiwan Mus. 27(3, 4): 430. 1974;台灣植物志5: 1052. 1978;台灣蘭科植物彩色圖鑑2: 590. 1990.

Listera pseudonipponica Fukuyama, Bot. Mag. (Tokyo) 49: 665. 1935.

Plants autotrophic, ca. 20 cm tall. Stem slender, with tubular sheaths at base. Leaves 2, opposite, borne at ca. middle of plant, ovate-suborbicular or nearly reniform-suborbicular, 2-2.5 × 3-3.5 cm, base subcordate, apex rounded and with caudate tip. Peduncle ca. 6 cm, pubescent; rachis 3-4 cm, pubescent, laxly 6-8-flowered; floral bracts ovate-lanceolate, 1-3 mm, apex subacute.

Flowers spreading, resupinate; pedicel and ovary 6-8 mm, glabrous. Dorsal sepal linear-oblanceolate, 3.2-3.5 × 0.7-1 mm, 1-veined, base narrowed, apex slightly obtuse; lateral sepals linear-oblong, 3.5-3.7 × ca. 0.7 mm, 1-veined, apex slightly obtuse.

Petals linear-oblong, 3.5-3.7 × 0.8-1 mm, 1-veined, apex obtuse; lip subobovate or obtriangular, 5-6 mm, narrowly clawed at base, dilated apical portion obcordate, apex deeply 2-lobed; lobes diverging at an acute angle, oblong, oblique, ca. 2.5 × 4 mm, margins entire or minutely denticulate; sinus with a tooth between lobes; claw with a pair of oblanceolate auricles ca. 1.7 mm at base. Column erect, ca. 2.5 mm; anther ca. 0.7 mm; rostellum broadly ovate. Fl. unknown.^[2]

● Forests. C Taiwan.^[3]