生活型

tree-shrub

形態特徵

• Evergreen shrubs or small trees; twigs dark brown, terete, young twigs grayish brown to ferrugineous, short pilose to villose; terminal buds ovoid, with a few scales, appressed hairy, apex acuminate and slightly curved.
• Leaves coriaceous or thinly coriaceous, elliptic, ovate or lanceolate, 2–7 cm long, (0.7–)1–2 cm wide, apex acute, acuminate or caudate, with apiculate tip, base cuneate to short attenuate, margins more or less recurved, crenate to glandular dentate with teeth, teeth 2–5(–6) mm apart, shiny on upper surface, glabrous except the pilose midrib pilose, dull on lower surface, with sparsely appressed pubescent, midrib slightly prominent or sulcate on upper surface, prominent on lower surface, nerves (4–)5–7 pairs, slightly prominent on lower surface, petiole appressed pubescent, (1–)2–3(–4) mm long.
• Inflorescences axillary, a simple spikes or short-pedicelled racemes, (5–)10–20(–28)-flowered, 1–3(–4.5) cm long, axis grayish brown, villose, pedicel up to 1 mm long, bracts ovate to widely ovate, keeled, 0.7–1 mm long, apex acute or obtuse, bracteoles 2, ovate to widely ovate, 0.7–1 mm long, both persistent, adaxially glabrous, abaxially appressed hairy. Calyx tube glabrous or rarely sparsely appressed pubescent, 0.5–1 mm long, limb ca. 1 mm long, lobes imbricate, orbicular to widely ovate, apex obtuse, 0.5–1 mm long, abaxially outside glabrous or sparsely appressed hairy; corolla deeply 5-lobed, white, often tinged red-violet at apex of lobes, 3–4 mm long, lobes elliptic; stamens 18–35, pentadelphous; disc 5-glandular, pilose; style glabrous, swollen at base, 2.5–3.5(–4) mm long, ovary 3-locular, with 4 ovules per in each locule.
• Fruits black, ovoid, 3–4.5 mm long, ca. 3 mm in diam., persistent calyx lobes forming a blunt beak, stone ovoid, smooth, 3 mm long, 2.5 mm in diam.; mesocarp and endocarp thin, seed 1, curved, with curved embryo.
• Symplocos microcalyx Hayata was treated as endemic to the Ryukyus by the auther in 1993, but no significant differences can be found between these plants and those in Taiwan and S. China which bloom in spring and have small bracts.

分布

• 台灣 : 700–2,000m altitude.
• 世界 : The Ryukyus and S. China.

引證標本

ILAN: Taipingshan, Suzuki 12338; Chuifeng, Kao K3134; Shenmihu Nat. Res., Liao 1763. HSINCHU: Chilanshan, Chen 152. NANTOU: Musha -Santinozyo, Masamune et al. 2349. CHIAYI: Suisharyo-Hunkiko, Hayata s. n. (Type of S. suishariensis Hayata); Tienyunshan, Peng 8814. KAOHSIUNG: Tona, Huang 10249; Nanfenshau, Chang 10014; Sanping, Huang 478, 530. HUALIEN: Hopin, Kuo 8198.

引用文獻

• NAGAMASU, Hidetoshi, Flora of Taiwan, second edition 4: 111. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)