討論:杜英
山羊百科，林文智老師的植物、山岳、攝影紀錄
5. Elaeocarpus sylvestris (Lour.) Poir.
5a. var. sylvestris. 杜英
An evergreen tree. Leaves alternate, chartaceous, oblong or lanceolate to oblanceolate, the apex acuminate, with obtuse acumen, the base acute to long-attenuate at base, sometimes broadly acute, 7-14 cm long, 2-4 cm broad, glabrous, black-tubercled beneath, the margins crenulate, the midrib slightly impressed above, elevated beneath, the veinlets reticulate; petioles about 1.5-2 cm long. Inflorescence racemose, axillary or above the scars of the fallen leaves, the rachis sparsely puberulent; pedicels slender, 4-6 mm long, sometimes up to 10 mm long, puberulent; sepals 5, lanceolate, about 4 mm long, 1 mm broad, depressed pubescent especially toward the margins; petals 5, inverted-triangular, about 6 mm long, and 3 mm broad, cut into numerous laciniae, pilose in the lower part inside, narrowed below; stamens 20-30, the anthers linear, the anther valves awnless, the outer valves obtuse, nearly as long as the inner ones; ovary 3-celled, densely pubescent; style slender, about 4 mm long. Fruit ellipsoid, 1.5-2 cm long, acute at both ends, the stone hard, tubercled.
S. China, the Ryukyus and Japan. Taiwan, in forests at low altitudes throughout the island.
TAIPEI: Nakamura 4056; Bunzangun, Suzuki 16838. ILAN: Taipingshan, Chang 4531. NANTOU: Wushen, Chang 1631. PINGTUNG: Hiiranshan, Chang 3779; Kaoshihfo, Chang 2411.
5b. var. lanyuensis (Chang) comb. nov. 蘭嶼杜英
Similar to the typical form but with shorter leaves and petioles.
Endemic.
TAITUNG: Is. Lanyu, Chang 14930.
- Elaeocarpus sylvestris var. ellipticus ホルトノキ
- Elaeocarpus sylvestris var. pachycarpus チギ
- Elaeocarpus zollingeri
