台灣植物誌 第二版 Flora of Taiwan, 2nd edition Vol. 3
cm long, the lateral leaflets opposite, larger, sessile to short-petiolulate, ovate-oblong, 10-12 cm long, 4-5 cm broad, acuminate, entire below, serrulate above, the lateral veins of 10-15 pairs. Flowers in umbels about 2.5 cm across, about 50-flowered, bracteate; calyx glabrous; petals caducous, oblong-triangular, about 1.5 mm long; stamens with filaments 2 mm long; disc conical; styles 5. Fruit depressed-globose, 3 mm across.
Endemic. In the northern and central parts of the island (2,000-2,300 m). Often epiphytic on Castanopsis spp.
NANTOU: Tsuey-fong, Yang 89. CHIAYI: Mt. Alishan, Hayata & Sasaki s. n. 1912.
8. SCHEFFLERA J. R. & G. Forst. 鵝掌柴屬
Shrubs or trees, unarmed. Leaves digitately compound, the stipules connate within the petiole. Flowers in umbels or racemes, these arranged in panicles or compound racemes, the bracts pubescent, deciduous or persistent, the pedicels not articulate under the flower; calyx-margin entire or 5-dentate; petals 5-9, valvate; stamens 5-9; ovary 5-9-celled; styles united into a column or none, the stigmas distinct. Fruit globose or ovoid, 5-9-seeded, angled or not; seeds laterally compressed; endosperm uniform or slightly ruminated.
About 200 species, widely distributed in the tropics to warm temperate regions of both hemispheres; four in Taiwan.
KEY TO SPECIES
1. Leaflets 6-9; flowers 5-merous.
2. A scandent epiphyte; leaflets 7-9, about 9 cm long and 4 cm broad; styles none, the stigmas sessile… 1. S. arboricola
2. A tree; leaflets 6-8, elliptic or ovate-elliptic, 7-17 cm long and 3-6 cm broad; styles united into a very short column, the stigmas indistinct… 2. S. octophylla
1. Leaflets 5-6; flowers 6-merous.
2. A vine; leaflets 5-6, flowers paniculate… 3. S. odorata
2. A small tree; leaflets 4-5; flowers in racemosely arranged umbels… 4. S. taiwaniana
1. Schefflera arboricola (Hayata) Kanehira, Form. Trees rev. ed. 524. f. 486. 1936; Li in F1. Taiwan 3: 930. 1977. 鵝掌蘗
Heptapleurum arboricolum Hayata, Icon. Pl. Form. 6: 23. pl. 4. 1916.
A shrub, sometimes scandent, to 3-4 m high. Leaves 7-9-foliolate, long-petiolate; petioles slender, 12-30 cm long. Leaflets petiolulate, coriaceous, 9-20 cm long and 4-10 cm broad, obtuse to acute, sometimes emarginate, the base obtuse, the margins entire, glabrous, the lateral veins of 5-6 pairs; petiolules 2-4 mm long. Inflorescence a terminal panicle, stellate-tomentose to glabrescent, about 20 cm long, the umbels in racemosely arranged, 0.7-1 cm across, 5-10-flowered; pedicels 5-8 mm long. Flowers 5-merous, petals 2.5 mm long, pistil with sessile stigmas. Fruit ovoid, glandular-punctate when young, about 5 mm long and 4 mm broad, 5-angular, the disc conical, about the length of the fruit.
Hainan Island. Taiwan, in forests from low to high altitudes throughout the island.
TAIPEI: Shihting, Tateishi et al. 16690. NANTOU: Wilson 9828. CHIAYI: Mt. Morrison, Kawakami & Mori s. n. in 1899. KAOHSIUNG: Wilson 11027, Price 1105. PINGTUNG: Kenting Park, Ohashi et al. 14736, Nanjen-shan, Ohashi et al. 13933.