Chamaesyce taihsiensis
台西大戟
endemic
Chamaesyce taihsiensis Chaw & Koutnik
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
Chaw & Koutnik, Botanical bulletin of Academia Sinica 31: 163. 1990. (Bot. Bull. Acad. Sin., 中央硏究院植物學彙刊)
台灣首次記錄發表文獻
同發表文獻
異名
無
各語言俗名
無
特徵描述
生活型
herb
形態特徵
- Likely perennial herb; stem prostrate, spreading, glabrous; stipules deltoid, 0.3-0.5 mm long, laciniate at apex, free above, fused below, glabrous.
- Leaves elliptic to obovate, 2.5–6 mm long, 1.5–3.5 mm wide, truncate to emarginate at apex, obliquely rounded at base, serrulate at tip to entire at margin, glabrous on both surfaces; petioles reddish, 0.2–1 mm long, glabrous.
- Cyathia solitary at nodes; involucres campanulate, 0.8–1 mm long, glabrous outside, pilose inside; stalks 0.5-0.7 mm long; glands 4, green to red, elliptic or oblong, 0.2-0.3 mm long; appendages narrowly elliptic, entire to distinctly undulate at margin; bracteoles linear, sublaciniate. Male flowers 3–10, anthers red. Female flowers occasionally with 1 or 2 minute triangular, perianth segments; pedicel and ovary glabrous; style and stigma 0.2-0.3 mm long.
- Capsules 1.3–1.7 mm long, 1.2–1.7 mm diam., exserted, nutant, glabrous, the pedicels to 2.4 mm long; seeds grayish or brownish, tetragonal, oblong-ovoid, 0.8–1.2 mm long, 0.6-0.9 mm diam., smooth or slightly rugulose.
分布
- 台灣 : Endemic, usually occurs in sandy crevices of cement embankments and coral reefs, or sometimes in sandy wilderness along coast of Taiwan and Penghu.
引證標本
PENGHU: Penghu Island, Kudo & Mori 3090.
引用文獻
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細川隆英 T.Hosokawa
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215042
S.M.Chao
雲林 Yunlin
S.M.Chao
雲林 Yunlin