Apiaceae
繖形科
特徵描述
[ Umbelliferae 繖形科 ]
作者
KAO, MUH-TSUEN
型態特徵
Perennial or annual herbs, rarely suffrutescent, caulescent or acaulescent; roots often thick,tuberous or fusiform; stems erect or creeping, usually fistulose or solid. Leaves alternate, simple or prominently divided and compound, the upper petioles frequently embracing young inflorescence with a dilated sheath-like base. Flowers yellow, white, pink, purplish or violet, bisexual or polygamous, in simple or compound umbels, sometimes capitate; calyx 5-toothed; petals 5, valvate or slightly imbricate in bud, free, deciduous, often incurved at apex; stamens 5, alternate with petals. the filaments filiform, incurved in bud; ovary inferior, bilocular; styles 2, often accrescent, usually with stylopodium; ovules solitary in each cell, pendulous. Fruit a schizocarp, bilocular, separating into 2 carpels (mericarps), these usually suspended from the top of the central column called carpophore, with 5 primary ribs and sometimes 4 intermediate or secondary ones; vittae (oil-tubes) often present; seeds with abundant endosperm and a small embryo.
屬
About 200 genera and 3,000 species distributed in the whole world. sixteen genera, about 29 species and two varieties in Taiwan.
參考文獻
- KAO, MUH-TSUEN. 1993. Flora of Taiwan, second edition 3: 1010. (Fl. Taiwan 2nd edit.)
- Hiroe, M. 1958. 1-219.
- Ohwi, J. 1965. 667-686.
- Walker, E. H. 1976. Fl. Okinawa and southern Ryukyu Is. 789-799.
Angelica 當歸屬
作者
KAO, MUH-TSUEN
型態特徵
Perennial herbs; with stout taproots; stems stout, erect and tall, usually hollow, caulescent, glabrous to tomentose. Leaves petiolate, membranaceous to thick and subcoriaceous, ternately-pinnate or pinnately compound; pinnae serrate to lobed. Inflorescence of loose compound umbels; rays few to many; involucre small, entire. Flowers white, pink, purplish or violet; petals ovate to obovate, with a narrowly inflexed apex, glabrous to hirsute dorsally; calyx-teeth minute or obsolete. Fruit oblong-oval to orbicular, strongly flattened dorsally, pubescent or glabrous, the lateral ribs broadly thin or corky-winged, the dorsal ribs also prominent but not winged, those of the carpels separate; carpophore 2-cleft to the base. Vittae solitary or 2 in the interval, 2 to many on the commissure. Seeds strongly compressed dorsally, the inner face plane to concave.
About 50 species distributed in the Northern Hemisphere and also in New Zealand, five species and one variety in Taiwan.
參考文獻
種列表
- Angelica acutiloba 日本當歸
- Angelica aliensis 阿禮當歸
- Angelica dahurica var. formosana 野當歸
- Angelica decursiva 紫花前胡
- Angelica hirsutiflora 濱當歸
- Angelica keiskei 明日葉
- Angelica litoralis
- Angelica morii 森氏當歸
- Angelica morrisonicola 玉山當歸
- Angelica pubescens 毛當歸
- Angelica pubescens var. tatunensis 大屯當歸
- Angelica rupestris
- Angelica tarokoensis 太魯閣當歸
- Angelica villosa
