Chamaesyce sparrmannii

心葉大戟

Chamaesyce sparrmannii (Boiss.) Hurusawa

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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名彙資訊

學名發表文獻

Hurusawa, Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 6(6): 277. 1954. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot., 東京帝國大學理學部紀要, 第三類, 植物學)

台灣首次記錄發表文獻

Lin et al., Botanical bulletin of Academia Sinica 32: 277. 1991. (Bot. Bull. Acad. Sin., 中央硏究院植物學彙刊)

異名

無

各語言俗名

無

特徵描述

生活型

herb

形態特徵

Perennial herb; stem ascending, glabrous; stipules ovate-deltoid to ovate, 1 to 2 mm long, incised at margin, sericeous adaxially.
Leaves subcoriaceous, ovate, 10–18 mm long, 6–13 mm wide, acute at apex, obliquely cordate at base, entire at margin, glabrous on both surfaces; petioles 1–1.8 mm long, glabrous.
Cyathia in cymes with leaf-like bracts; involucres turbinate, 1.2–1.8 mm long, glabrous outside, velutinous inside, stalks 0.5–4 mm long; glands 4, yellow, rounded to transversely elliptic, ca. 0.2 mm long; appendages white, obovate to reniform, entire, 0.5-0.9 mm long, 0.3-0.7 mm wide; bracteoles linear, laciniate-lacerate at margin. Male flowers 15–20, anthers yellow. Female flower with glabrous pedicel and ovary, style and stigma 0.4-0.6 mm long.
Capsules to 2.5 mm long, 2.5 mm diam., exserted, nutant, glabrous, the pedicels to 4 mm long; seeds grayish to brownish, tetragonal, oblong-ovoid, smooth or slightly rugulose, to 1.3 mm long, 1 mm diam.

分布

台灣 : Locally it has been collected only in Is. Lanyu, and is commonly found in coral reefs along the coastal areas.
世界 : Eastern India, Australia and the Ryukyu Islands.