| 1. | A study on karyotypes of two species in ephedra
麻黄属2种植物的核型研究 |
| 2. | This character is distinct in seed plants and is useful in fossil identification for the ephedraceae . 4
麻黄属聚合囊表面纹饰非常独特，为该属在地层中雄性生殖构造的发现提供了可参考的性状。 |
| 3. | Expected results were achieved in the hierarchical clusters of the chromatographic data of the plants of ephedrine which supplied the foundation for studying crude drugs category
色谱数据的系统聚类结果得到了预期效果，为研究麻黄属药材的类别提供了依据。 |
| 4. | These genera and ephedra also hve advanced tracheids with a structure reminiscent of angiosperm vessels , whereas in other gymnosperms the xylem is composed solely of more primitive tracheids
这些属以及麻黄属植物和被子植物一样有进化的管胞，而其他的裸子植物的木质部只由很多导管组成。 |
| 5. | The chemical information of 17 samples of 2 kinds of plants was obtained with high performance liquid chromatographic method and classification based on their chemical information was made through hierarchical cluster
利用高效液相色谱技术提供了2个麻黄属药材品种17个样品的内在成分信息，结合聚类分析技术，对麻黄属植物进行了分类及鉴定。 |
| 6. | Palynology pollen of ephedra from china is studied . four types of pollen have been found in the genus , namely type a , b , c , and d , according to the number and structure of ridges and structural characters of grooves
4 、孢粉学补充了麻黄属中非常特化的种? ?斑子麻黄的孢粉资料，同时也对膜果麻黄( ephedraprzewalskii ) 、中麻黄、细子麻黄和木贼麻黄的孢粉重新进行了研究。 |
| 7. | 1 . taxonomy variation patterns of all available characters in ephedra from china are studied both in the field and in herbarium . thirteen species are recognized from china , among which , ephedra rituensis y . yang , d . z . fu et g zhu is described new to science
1 、分类学从性状变异式样的分析入手，结合标本馆工作和野外调查，确认了中国麻黄属植物共有13个种；合并了丽江麻黄( ephedralikiangensis ) 、雌雄麻黄( e |
| 8. | Ontogeny three types of female cones of ephedra are recognized according to the number of seeds per cone , namely uni - ovulate cone , bi - ovulate cone , and tri - ovulate cone . it is suggested that terminal bud of primary cone axe is developed in tri - ovulate cone and disappears in bi - ovulate cone
这三种类型也代表了麻黄属球花演化的三个阶段，三胚珠球花代表麻黄属雌球花的原始式样，而单胚珠雌球花则为麻黄属雌球花最为特化的式样。 |
| 9. | Morphology all ephedra species from china are illustrated with great details on male and female cones . the photographs provide valuable information of characters including peduncle of cone , bract , and micropylar tube etc . for classification and identification of ephedra species from china
2 、形态学提供了中国麻黄属种类的标本(包括模式标本)照片资料及中国麻黄属植物的雌球花和雄球花的照片资料，为麻黄属分类和系统学研究提供了证据。 |
| 10. | Study on branchlet surface sculpture does not reveal any hair - like structures as recorded by previous authors ; only some warty cuticles on the ridges and variable stomata in the grooves are noted . the surface of synangium in ephedra has secondary sculpture while the lip of the openings of synangium resembles the cerebral waves
对小枝表面扫描电镜下的微形态构造的研究并没有发现前人报道的毛状体特征，而只有一些疣状角质突起和有变异的气孔，同时注意到，麻黄属植物的小枝表面特征受到生境、发育阶段的影响。 |
