石松

Huperzine A and -huperzine B are two Lycopodium alkaloids, which were first isolated from the herb Huperzia serrata by Chinese scientists in 1980s.

石杉碱甲(--HuperzineA，HupA和石杉碱乙(--HuperzineB，HupB是我国科技人员在八十年代早期从石松科植物千层塔中分得的生物碱。

The chemical constituents of Huperzia serrata Trev. are mainly flavonoids, triterpenoids and alkaloids. In order to get further comprehension of lycopodium alkaloids, we studied the low-polar section of the alkaloids extraction of Huperzia serrata and 19 alkaloids were isolated by ways of silica gel, RP-18 and Sephadex LH-20 etc. All of their structures, including five new compounds and two known ones that were firstly found from this genus, were elucidated with the help of Mass, IR, NMR spectra and so on. The five new alkaloids (HS-07, HS-08, HS-09, HS-10 and HS-11) are belonged to lycopodine class. The other two ones that were new to this genus (HS-18 and HS-19) are belonged to miscellaneous group.

蛇足石杉的主要化学成分为黄酮，三萜和生物碱，为进一步了解该植物的生物碱成分，我们研究了蛇足石杉氯仿总碱低极性部位的生物碱成分，运用正相硅胶、反相RP-18、凝胶LH-20等方法分得了19个生物碱，并通过质谱、红外、核磁共振等波谱鉴定了它们的结构，其中5个为新化合物，2个为首次从该属植物中分离得到的化合物，所分得的新化合物：HS-07、HS-08、HS-09、HS-10和HS-11均为lycopodine类石松生物碱，首次从该属植物中分得的化合物为miscellaneous类：HS-18和HS-19。

Huangshan step by step mountain road step by step scenery, four sides the high peak strange lycopodium cloud gets a panoramic view, says it " considerably ".

登泰山，不象黄山步步山路步步景，四面奇峰怪石松云尽收眼底，谓之"可观"。

The PROTHALLUS of Lycophyta, Sphenophyta, and Filicinophyta, which may be a green structure on the soil surface or a subterranean mycorrhizal structure, is the gametophyta.

石松门、楔叶门、真蕨门的原叶体是位于地表的绿色结构或是位于地下的菌根结构，这些结构便是蕨类植物的配子体。

This paper reports a new recorded lycophyte, Selaginella lutchuensis Koidz., collected from eastern Taiwan.

本文新纪一种产於台湾东部之石松植物－球卷柏(Selaginella lutchuensis Koidz。)。

Selaginellales An order of the Lycophyta containing the single living genus Selaginella, sometimes called spike-mosses, with about 700 species, found worldwide, but especially in the tropics.

卷柏目：为石松亚门下一目，该目仅有单属卷柏属，常被称为卷柏。这类植物有700多种，分布广泛，以热带居多。

A plant, such as a tropical orchid or a staghorn fern, that grows on another plant upon which it depends for mechanical support but not for nutrients.

附生植物一种生长于另一植物之上的植物，如热带兰或石松，依靠另一植物支持生长而不以其获得养料

Such as the ferns in the Stone Song Ya Ya doors and wedge the door leaf plants, they are The spore body was producing strobilus.

如蕨类植物中的石松亚门和楔叶亚门的植物，它们的孢子体均产生孢子叶球。

In the Filicinophyta, Sphenophyta, and Lyophyta the embryo sporophyte produces a footlike structure that remains embedded in the tissues of the parent gametophyte plant, absorbing nutrients like the suspensor of higher plants.

在真蕨门 filicinophyta ，楔叶门 sphenophyta，和石松门 lycophyta 中，胚胎孢子体产生足状结构，仍然包裹于双亲配子体植物内。胚胎吸收营养的方式同高等植物从胚柄那样吸收营养一样。

Phyla may be divided into subphyla.The names of plant phyla end in -phyta,e.g. Anthophyta, Lycophyta.

门可被分为亚门，植物&门&的名称以-phyta结尾，如显花植物门、石松门。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。