討論:杜英屬

山羊百科，林文智老師的植物、山岳、攝影紀錄

1. ELAEOCARPUS L. 杜英屬

Trees or shrubs. Leaves simple. Flowers hermaphroditic in axillary racemes; sepals 5, distinct; petals 5, usually fimbriate at the apex, rarely entire, springing from the inside of the torus, and more or less aggregated into groups, opposite the petals and alternating with the glands of the torus; anthers linear, opening by a slit lengthwise; ovary 2-5-celled, with 2-many ovules in each cell, the style columnar. Drupe with a single bony stone, 2-5, or by abortion, 1-celled; seeds pendulous, 1 in each cell; endosperm fleshy.

KEY TO SPECIES AND VARIETY

1. Petals fimbriate at the apex.

2. Fruit subglobose, about 1.5 cm across; anther awned at the apex of outer valves… 4. E. sphaericus var. hayatae

2. Fruit elliptic, about 6-10 mm across; anther-valves awnless.

3. Ovary 3-celled… 5. E. sylvestris

3. Ovary 2-celled… 1. E. argenteus

1. Petals entire or 3-4-dented at the apex.

4. Petals entire, sometimes 3-4-dented; anthers awnless… 2. E. japonicus

4. Petals 3-4-dented; anthers awned at the apex of the outer valves… 3. E. multiflorus