Anneslea lanceolata

細葉茶梨

endemic

Anneslea lanceolata (Hayata) Kanehira

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

Kanehira, Formosan trees : indigenous to the island (revised) 454. fig. 412. 1936. (Formos. Trees rev. ed., 台灣樹木誌)

台灣首次記錄發表文獻

同發表文獻

異名

Anneslea fragrans Wall. var. lanceolata Hayata

Hayata, Icones Plantarum Formosanarum 3: 42. pl. 5. 1913. (Icon. Pl. Formos., 台灣植物圖譜)

各語言俗名

中

披針葉紅楣. 台灣安納士樹. 細葉安納士樹.
英

Slender-leaf Anneslea.
日

ながばもくこく.

參考資料

Yeh-Ching Liu, Fu-Yuan Lu & Chern-Hsiung Ou, Trees of Taiwan revised . 1994. (Tr. Taiwan rev. ed., 台灣樹木誌第二版)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)

特徵描述

生活型

tree

形態特徵

Trees, to 60 cm in diameter; branches glabrous, stout.
Leaves coriaceous, narrowly oblong or elliptic, (7–)10(–5) cm long, 2.5(–3.5) cm wide, glabrous, margins very shallowly crenate, revolute, lower surface with numerous blackish glands, apex acute, base attenuate, midrib impressed; petioles (1–)2–3 cm long.
Flowers solitary, axillary, usually 5–8 aggregated at the apex of branchlet to assume a corymbose inflorescence; pedicels (1.5–)2.5(–3) cm long, downward-bending, compressed, with 2 ridges; subtending bracts caducous, bracteoles 2, persistent, sub-opposite, thick, triangular, 5–6 mm long, 4–5 mm wide; sepals 5, fleshy, imbricate, triangular-ovate, 1–1.5 cm long, 8–10 mm wide, apex acute; petals 5, 1.4–1.6 cm long, pinkinsh to reddish, basally connate into a tube, 6 mm long, 1 cm in diameter, abruptly narrowed on each side at the middle, the upper segments obovate, 8–9 mm long; stamens about 35, glabrous, 10–12 mm long, filaments 3–4.5 mm long, anthers basifixed, aristate, projected connective tip 2.5–3 mm long; ovary (2-) 3-celled, nearly inferior; ovules pendulous, 3 per cell, style filiform, 2 mm longer than petals, unequally 3-fid at apex.
Fruit inferior, baccate, fruit-body 2 cm long, 1.5–1.8 cm in diameter, pericarp ca. 5 mm thick, dehiscing irregularly.Seeds reddish, 0–1 in each cell, , 12 mm long.
This species has long been treated as a varity of A. fragrans Wall. But A. lanceolata has downward-bending pedicels, whereas A. fragrans has erect pedicels. In addition, pedicels, floral parts, and fruit of A. lanceolata are constantly smaller or shorter than those of A. fragrans. The unpublished molecular data (Tsou) also support that A. lanceolata is different from A. fragrans.

分布

台灣 : rare, distributed in broad-leaved forests in the southern Taiwan at altitudes of 350 to 1,000 m.

引證標本

PINGTUNG: Manchou, Tsou 502, 616, 634, 734, Tzeng 1633; Fonshan, Tseng 14; Nanjenshan, Hsu & Kuoh 10258. TAITUNG: Talilishan, Sasaki s. n.; Chinhua to Tawu, Liu & Keng K2870.