Dissertation Research: Systematics of Aralia (Araliaceae)

研究生Jun Wen女士，在 俄亥俄州州立大学的托德·斯图西博士将准备一个现代的 对估计的35种开花植物的分类处理 木属植物。 该物种分布于北美洲各地。 在东亚，这是一个有趣的问题 历史生物地理学。 形态学和解剖学的新数据将 从植物标本馆标本和新的收藏品中获得， 在中国制造;在墨西哥的实地工作已经完成 而在美国，则是由学生。 此外，染色体 分析和花形态学数据将被用来测试 与相关属的关系，如Pentapanax和 石楠属 修订的分类属，提供 所有物种的一致划界和可靠的 标识键，绘制地理分布图，以及 总结生态学和生殖生物学的知识， 将有助于进一步了解一个广泛的模式， 在北方间断分布的植物。

Graduate student Ms. Jun Wen, under the faculty guidance of Dr. Tod Stuessy of Ohio State University, will prepare a modern taxonomic treatment of the estimated 35 species of the flowering plant genus Aralia. The species occur throughout North America and in eastern Asia, and present an interesting problem in historical biogeography. New data on morphology and anatomy will be acquired from herbarium specimens and from new collections to be made in China; field work has already been completed in Mexico and in the United States by the student. In addition, chromosome analyses and floral-morphological data will be used to test relationships with associated genera such as Pentapanax and Sciadodendron. A revised taxonomy of the genus, providing consistent delimitation of all species and reliable identification keys, mapping geographic distributions, and summarizing knowledge of ecology and of reproductive biology, will help further understanding of a widespread pattern of disjunct plant distribution in the northern hemisphere.