Smilax seisuiensis

台中假土茯苓

endemic

Smilax seisuiensis (Hayata) T. C. Hsu & S. W. Chung

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

T. C. Hsu & S. W. Chung. 2012. The Taiwan Journal of Biodiversity 14(1-2): 54. (TW J. of Biodivers.)

台灣首次記錄發表文獻

同發表文獻

異名

Pseudosmilax seisuiensis Hayata

Hayata. 1920. Icones Plantarum Formosanarum 9: 125. (Icon. Pl. Formos.)
Pseudosmilax hogoensis Hayata

Hayata. 1920. Icones Plantarum Formosanarum 9: 125. (Icon. Pl. Formos.)
Heterosmilax seisuiensis (Hayata) F. T. Wang & T. Tang

F. T. Wang & T. Tang. 1934. Sinensia 5: 427.
Heterosmilax hogoensis (Hayata) T. Koyama

T. Koyama. 1957. Quarterly journal of the Taiwan Museum 10: 219. (Quart. J. Taiwan Mus.)

各語言俗名

中

台中假土茯苓
英

Pseudosmilax
日

ほうごうしおもどき

參考文獻

Yang. 1982. A list of plants in Taiwan. (List Pl. Taiwan)
Yeh-Ching Liu, Fu-Yuan Lu & Chern-Hsiung Ou. 1994. Trees of Taiwan revised. (Tr. Taiwan rev. ed.)

特徵描述

生活型

vine

形態特徵

Stems to 3 m long, subterete, 4-7 mm thick below. glabrous, smooth; branches 20-30 cm long, internodes 2-6 cm long, 1-2 mm thick.
Leaf blade ovate to broadly ovate, 7-15(-25) cm long, 4-10(-18) cm wide, base rounded-truncate to shallowly cordate, apex acute to acuminate, chartaceous to thinly coriaceous, costas 5, separate to base, slender but distinct on upper surface, convex on lower surface, lateral veinlets oblique, forming fine reticulations; petiole 1-3 cm long, subterete, 1-channelled adaxially, sheathing for 5-7 mm long, wings membranaceous; tendrils 7-12 cm long.
Umbel solitary in leaf axils of branches and upper stem; staminate umbels densely, 40-55-flowered, subglobose, 3-3.5 cm across; rays 1.5-2 cm long; peduncle 5-7 cm long. Staminate perianth obovate-elliptic, 3 mm long, 2 mm wide, terete, suddenly narrowed at base, rounded to minutely 3-toothed apex, glabrous; teeth at orifice deltoidobtuse, 1-3 mm long. Stamens 9, free; anthers lanceolate-ovate, 1-1.2 mm long; filaments 0.8 mm long.
Pistillate flowers and fruits not known.

分布

台灣 : southeastern Taiwan.

引證標本

TAIWAN: Hogo, Hayata s. n. 1916 (Type of P. hogoensis). TAITUNG: between Seisui and Guukutsu, Hayata & Sasaki s. n. 1917 (Tl, Type of P. seisuiensis).