Acer kawakamii

尖葉槭

endemic

Acer kawakamii Koidz.

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

Koidz., The Botanical magazine, Tokyo 25: 102. 1911. (Bot. Mag. Tokyo)

台灣首次記錄發表文獻

同發表文獻

異名

Acer caudatum auct. non Wall.

Matsum., The Botanical magazine, Tokyo 12: 63. 1898. (Bot. Mag. Tokyo)
Acer ovatifolium Koidz.

Koidz., The Botanical magazine, Tokyo 25: 102. 1911. (Bot. Mag. Tokyo)
Acer caudatifolium Hayata

Hayata, Materials for a flora of Formosa 65. 1911. (Mat. Fl. Formos.)
Acer taiton-montanum Hayata

Hayata, Icones Plantarum Formosanarum 3: 67. 1913. (Icon. Pl. Formos.)
Acer insulare Makino

Hatusima, Journal of Japanese Botany 27: 211. 1952. (J. Jpn. Bot.)
Acer kawakamii Koidz. var. taitonmontanum (Hayata) Li

Li, Pacific Science 6: 291. 1952. (Pacific Sci.)
Acer insulare Makino var. caudatifolium (Hayata) S. Y. Lu & Y. P. Yang

S. Y. Lu & Y. P. Yang, Manual of Taiwan Vascular Plants 3: 157. fig. 179. 1998. (Manu. Taiwan Vas. Pl.)

各語言俗名

中

尖尾槭. 大屯尖葉槭. 尖葉楓. 川上氏槭.
英

Kawakami maple.
日

しまうりかいぇだ. とがりはかへで. をながかへで. たいとんかえで. とがりばかえで.

參考文獻

Lu, Ou & Lu, Illustrations of Trees of Taiwan 5: 31. 2001. (Ill. Tr. Taiwan)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

tree

形態特徵

Trees, up to 20 m high; branchlets slender, glabrous.
Leaves deciduous, chartaceous, usually undivided to shallowly 3-lobed, rarely distinctly 3- to 5-lobed, ovate to oblong-ovate, 2.5–11 cm long, 1–8 cm broad, caudate-acuminate at apex, rounded or slightly cordate at base, 5-nerved, subduplicately serrate, green above, pale green beneath, slightly pubescent on nerves at first, soon glabrous.
Inflorescence of glabrous or slightly pubescent racemes, ca. 5 cm long. Flowers 9–10 mm across; pedicels 5–6 mm long, slender, glabrous; sepals 5, ovate-lanceolate, 2–2.5 mm long, glabrous; petals 5, white, rhomboid, 3.5–4 mm long, margin wavy; disk 8-lobed, thick; stamens 8, around the disk; connective upwards produced beyond anther cells. Pistillate flowers remarked by conspicuous carpels; ovary with large wings over petals, villose; styles 2, long, connate at basal part, recurved downwards, pubescent; staminodes 2 mm long; anthers basifixed. Staminate flowers: stamens long; filaments ca. 3 mm long; anthers with prominant connective over 1 mm long, dorsifixed.
Samara yellowish brown; wings falcate, each wing with the semicarp 2.5–3.2 cm long, two lower edges of wings spreading at angles of 120–135 degree.

分布

台灣 : In forests from low to medium altitudes of the northern part of Taiwan.

引證標本

TAIPEI: Mt. Seven Star, Hsu 5314*; Mt. Tatun, Yang 1383. ILAN: Enyanhu, Huang et al. 10737. HSINCHU: Kuanwu, Huang 6625. MIAOLI: Anmashan, Huang 8062. TAICHUNG: Wuling Farm, Wang et al. 4016; Mayfong, Ou & Kao 9313. NANTOU: Tuefong, Yang 131. CHIAYI: Alishan, Huang 2573. HUALIEN: Tayuling, Huang 194.