大戟

Group I included the seeds of Gramineae, Cyperaceae, Polygonaceae and Amaranthaceae, and Group II included the seeds of Compositae, Euphorbiaceae, Brassicaceae and Umbelliferae.(2) Only FTIRs of the seeds of Brassicaceae were clustered together in the dendrogram, while those of the other families all appeared farraginous.(3) Among FTIRs of the 11 groups of the congeneric species, 8 groups were clustered with other genus species, and 6 out of 7 groups of conspecific seeds appeared farraginous in the dendrogram.

结果表明：（1）80种草本植物的种子可以分成两类，第1类由禾本科、莎草科、蓼科和苋科植物的种子组成；第2类由菊科、大戟科、十字花科和伞形科植物的种子组成；（2）聚类图上，只有十字花科植物的种子能较好地与其他科的相区别；（3）在11组同属不同种植物中，有8组植物与亲缘关系不同的其他属的植物混在一起；在7组同种不同亚种或品种植物中，仅有1组植物被聚合在一起。

The distribution and harm of species of dominant weeds of lawn vary with different area, and the most harmful weeds belong 8 families, which were Poaceae, Asteraceae, Cyperaceae , Amaranthaceae, Euphorbiaceae, Polygonaceae, Fabaceae and Caryophyllaceae, about accounted for from sixty percent to seventy percent in all weeds in lawn.

摘要不同地区草坪优势杂草的种类不尽相同，禾本科、菊科、莎草科、苋科、大戟科、蓼科、豆科和石竹科等8个科的杂草种类和发生数量最多，约占杂草总数的60%~70%。

A total of 106 species were recorded as being eaten by Asian elephants, among them 83 species were identified in elephant's dung. Plant families that contributed a major proportion of elephant's diet in the study area were: Gramineae (8 spp., 10.0%), Moraceae (7 spp., 9.9%), Papilionaceae (4 spp., 8.4%), Araliaceae (3 spp., 6.6%), Vitaceae (3 spp., 5.7%), Apocynaceae (3 spp., 4.6%), Musaceae (1 spp., 4.2%), Zingiberaceae (3 spp., 3.7%), Myrsinaceae (3 spp., 3.6%), Rosaceae (3 spp., 3.6%), Euphorbiaceae (5 spp., 3.3%), Ulmaceae (2 spp., 3.0%) and Mimosaceae (4 spp., 2.9%).

结果显示，野外跟踪调查共记录有106种植物被亚洲象所取食，其中有83种出现在象的粪便中，这些种类分别属于：禾本科8种(10.0%)、桑科7种(9.9%)、蝶形花科4种(8.4%)、五加科3种(6.6%)、葡萄科3种(5.7%)、夹竹桃科3种(4.6%)、芭蕉科l种(4.2%)、姜科3种(3.7%)、紫金牛科3种(3.6%)、蔷薇科3种(3.6%)、大戟科5种(3.3%)、榆科2种(3.0%)、含羞草科4种(2.9%)13个植物科。

The dominant families or the characteristic families are Theaceae, Aquifoliaceae, Fagaceae, Caprufoliaceae、Lauraceae、Vutaceae、Compositae、Myrsinaceae、Araliaceae、Euphorbiaceae、Eriaceae、Moraceae、Rubiaceae, and most of them are of tropical-subtropical distribution.

本区系的优势科或表征科是山茶科、冬青科、壳斗科、忍冬科、樟科、葡萄科、菊科、紫金牛科、桑科、五加科、大戟科、杜鹃花科、桑科、茜草科，绝大多数是热带亚热带分布的。

The forest is composed mainly of the families, Rubiaceae, Myrtaceae, Myristicaceae, Lauraceae and Euphorbiaceae, and dominated by tree species, Metadina trichotoma, Syzygium cathayense, Knema erratica and Paramichelia baillonii. In physiognomy, the forest is characterized by the trees with mesophyllous, entire and leathery leaves. Woody lianas are found dominant, but trees with buttresses and cauliflory are relatively few in the forest.

结果显示，勐养山地雨林主要由茜草科、桃金娘科、肉豆寇科、樟科、大戟科等植物种类组成，以黄棉木、华夏蒲桃、假广子及山桂花为乔木优势种；群落乔木层以中叶、全缘、革质、尾尖、常绿植物占优势，灌草层植物则以中叶、全缘、纸质叶植物为主；藤本植物中以木质藤本占优势，板根和茎花现象少见。

Jatropha curcas L., a member of the family Euphorbiaceae, is known for its wildly application prospects.

麻疯树(Jatropha curcas L。)为大戟科麻疯树属植物，有广泛的用途。

They distributed in tropical and subtropical families such as: Rubiaceae, Lauraceae, Euphorbiaccae, Fagacea, Cyperaceae, Myrtaceae, etc.

其植物种类丰富，以茜草科、樟科、大戟科、壳斗科、莎草科、桃金娘科植物占优势。

School of Pharmacy, China Pharmaceutical University, Nanjing 210009Abstract : ent-Abietane diterpene lactones are extracted from the plants of Euphorbia. Their elementary structures are four-ring diterpenes.

松香烷内酯是大戟属植物中提取的一种典型二萜类化合物，其基本结构为四环二萜，有多种药理活性，特别是有较强的抗肿瘤活性。

New names for three species of Euphorbiaceae.

Title 大戟科三种植物的新名称。

New names for three species of Euphorbiaceae.

标题 大戟科三种植物的新名称。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。