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滇南泉七

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中文名:滇南泉七 拉丁学名:Steudnera henryana Engl. 界:植物界 门:被子植物门 Angiospermae 纲:单子叶植物纲 Monocotyledoneae 目:天南星目 Arales 科:天南星科 Araceae 族:芋族 Trib. Colocasieae 属:泉七属 Steudnera 分布区域:中国云南

滇南泉七(quán yuán quán qī，学名：Steudnera henryana Engl.），为单子叶植物纲、天南星科、泉七属下的一个植物种。多年生草本，产于滇南。

形态特征

Herbs, evergreen, medium sized, to 45 cm. Stems short, densely covered with fibrous cataphyll remains.

原图链接 来自植物标本馆

Leaves few together at shoot tips; petiole mid-green, terete, 30-45 cm × 4-5 mm, sheath very short;

原图链接 来自植物标本馆

原图链接 来自植物标本馆

leaf blade slightly paler abaxially, mid-green adaxially, peltate, somewhat stiffly membranous, base sometimes somewhat truncate, apex acuminate.

Inflorescence solitary, rarely paired; peduncle pale green, terete, 8-15 cm.

Spathe golden yellow, inside with a red patch, ovate to ovate-lanceolate, 5-8 × ca. 4 cm, apex cuspidate-acuminate.

Spadix up to 2.3 cm; female zone cylindric, ca. 15 × 3 mm, dorsally adnate to spathe; pistil mid-green, depressed globose, ca. 2 mm in diam.;

style very short; stigma pale yellow, 2-lobed, exceeding style; staminodes 4 or 5 per pistil, white, shorter than pistil, stoutly spatulate and very shortly apiculate;

male zone ivory, bluntly cylindric, free; synandria 6- or 7-androus, ca. 2 × 3.5 mm. Infructescence and fruit unknown.

生境产地

Wet shaded areas in seasonal evergreen forests, habitually on limestone; 300-700 m. Yunnan [N Laos, N Vietnam].