Smilax luei
呂氏菝契
endemic
Smilax luei T. Koyama
名彙資訊
特徵描述
典藏標本
數位照片
分布位置
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名彙資訊
特徵描述
生活型
vine
形態特徵
- Climbing vines 1 to 4 m long, 5-6 mm thick below, rather loosely branched above; branches subterete to angular, unarmed, weakly roughened, internodes 2-12 cm long, 1.5 mm thick.
- Leaf blade lanceolate-ovate to lanceolate, (3-)5-13 cm long, 1.5-3.5 mm wide, apex gradually tapering to acuminate, base rounded to shallowly emarginate, peltate coriaceous, upper surface glaucous-green, lower surface pale green; main costas 5 including marginal pair forming thickened margins,separate at point of attachment of petiole, prominently convex on both surfaces; transverse veinlets oblique, forming dense prominent reticulations; petiole 10-17 mm long, jointed ; 1-2 mm below apex, suberete, 0.3- 0.6 mm thick; sheathing base 2-4 mm long, wings herbaceous, ca. 0.5 mm wide; tendrils 3-10 cm long.
- Umbels 1 or 2 per branch, in lowest 1 or 2 nodes; peduncle 15-25 mm long, from axil of scaly bracts, without prophylls; bracts ovate to lanceolate-ovate, acute, 3-7 mm long, membranaceous, pale brownish. Staminate umbels globose, 15-20 mm across, 15-25-flowered; bracteoles ovate, obtuse, 0.8 mm long; rays 5-8 mm long. Pistillate umbels 3-6 mm across, 10-15-flowered; rays 1-2 mm long. Staminate flowers 4.5-5.5 mm in diam.; outer and inner tepals alike, reflexed at anthesis, lanceolate to lanceolate-ovate, 3.2-3.7 mm long, 1-1.2 mm wide, gradually tapering to subacute apex, greenish purple on both surfaces; stamens 9 (rarely 10), 1.7-2 mm long, anthers oblong-ellipsoid whitish, 1-1.1 mm long. Pistillate flowers 1.8-2 mm across, dark green; tepals thick membranaceous, apex incurved, obtuse, minutely verruculose on outer surface, outer 3 tepals elliptic 1.5-1.7(-2) mm long, 1 mm wide, inner 3 tepals ellipsoid-oblong 1.1-1.3(-1.5) mm long, 0.7 mm wide; ovary ovoid-globose, 1 mm long, stigmas ca. 0.5 mm long; staminodia 6 or 5, needle-like, 0.3-0.5 mm long.
- Berries globose, 7-9 mm across, black; seeds 1 (or 2).
物候
flowering in spring.
分布
- 台灣 : Margins of evergreen forests. Endemic to central Taiwan, 650 m.
引證標本
NANTOU: Lienhuachih, Ou s. n., 20 Dec 1969; Lienhuachih, Huang 7559; Lienhuachih, Huang 7610, 7559; Lienhuachih, Wang 1209, 1306.
引用文獻
典藏標本
共有 6 份典藏標本 所有標本模式標本
216768
黃增泉 T.C.Huang, 黃星凡 S.F.Huang
南投 Nantou
黃增泉 T.C.Huang, 黃星凡 S.F.Huang
南投 Nantou
162549
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou
162548
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou
162547
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou
162544
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou
162543
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou
共有 3 份典藏標本所有標本模式標本
162548
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou
162549
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou
162547
黃增泉 T.C.Huang
南投 Nantou
黃增泉 T.C.Huang
南投 Nantou