Department of Botany, University of Wisconsin, Madison, Wisconsin 53706 USA;
Am J Bot. 2004 Jul;91(7):1115-25. doi: 10.3732/ajb.91.7.1115.
Salvia, with over 900 species from both the Old and New World, is the largest genus in the Lamiaceae. Unlike most members of the subfamily Nepetoideae to which it belongs, only two stamens are expressed in Salvia. Although the structure of these stamens is remarkably variable across the genus, generally each stamen has an elongate connective and divergent anther thecae, which form a lever mechanism important in pollination. In a preliminary investigation of infrageneric relationships within Salvia, the monophyly of the genus and its relationship to other members of the tribe Mentheae were investigated using the chloroplast DNA regions rbcL and trnL-F. Significant conclusions drawn from the data include: Salvia is not monophyletic, Rosmarinus and Perovskia together are sister to an Old World clade of Salvia, the section Audibertia is sister to subgenus Calosphace or the monotypic Asian genus Dorystaechas, and the New World members of section Heterosphace are sister to section Salviastrum. Owing to the non-monophyly of Salvia, relationships at the next clearly monophyletic level, tribe Mentheae, were investigated.
唇形科中包含有 900 多种旧大陆和新大陆的鼠尾草属植物，是最大的属。与它所属的 Nepetoideae 亚科的大多数成员不同，鼠尾草属中只有两个雄蕊发育。尽管这些雄蕊的结构在属内变化很大，但通常每个雄蕊都有一个细长的连接组织和分叉的花药壁，它们形成了一个在授粉中很重要的杠杆机制。在对鼠尾草属内的种下关系进行的初步研究中，使用叶绿体 DNA 区域 rbcL 和 trnL-F 研究了属的单系性及其与薄荷族其他成员的关系。从数据中得出的重要结论包括：鼠尾草属不是单系的，迷迭香属和岩黄芪属与旧大陆的鼠尾草属聚为一支，Audibertia 组与 Calosphace 亚属或单种的亚洲属 Dorystaechas 聚为一支，异轮伞组的新大陆成员与 Salviastrum 组聚为一支。由于鼠尾草属不是单系的，因此研究了下一个明显单系的水平，即薄荷族的关系。
