亚洲豆腐柴属 (唇形科) 的分类学修订

Premna L. is the core member of the subfamily Premnoideae of Lamiaceae. Due to lack of scientific classification system, insufficient investigations of characters, and absence of comprehensive revisions, the genus is poorly known in taxonomy. The number of species in the world was estimated from 50 to 200. Asia is the distribution and the diversification center of the genus, however, the taxonomy of Premna in this region is very complicated due to lack of trans-regional studies and scarcity of specimens and field investigations. A number of endemics and taxonomically difficult groups need to be clarified. Based on the preliminary revision of Premna in China, the present project intends to revise the genus in Asia by means of the classical'morphology-geography'methods, i.e. examination of taxonomic literatures and herbarium specimens, investigation of morphological, anatomical and palynological characters, and wild populations. Through the implementation of this project, coupled with previous studies on the molecular phylogeny of Premna and taxonomic revisions in Africa and Australia, we'd like to complete the species delimitation in Asia, determine additional characters with systematic significance, and reconstruct an infrageneric system of the genus. This project would be of important value for the advancement of the taxonomy of Premna, and for the cultivation of young botanic taxonomists of Jiangxi Province.

豆腐柴属是唇形科豆腐柴亚科的核心成员，由于缺乏完善的属下系统、性状挖掘不够、分类修订不全面，其属下种类很不明确，估测为50种到200种不等。亚洲是该属的分布中心和多样化中心，同时也是分类最为复杂的地区。由于缺乏跨地域的分类学研究、标本少、野外调查不充分，大量的地区特有种和分类疑难类群有待澄清。本项目拟采用经典分类"形态-地理学"的研究方法，在前期国产种类的研究基础上，通过更全面的文献和标本研究，结合必要的形态学、解剖学、孢粉学研究及大量的野外调查，深入挖掘有价值的分类学性状，对亚洲豆腐柴属进行全面的分类学修订。同时，结合前人对非洲和澳洲豆腐柴属的专著性研究及申请人前期的分子系统学研究，确定具有系统演化意义的关键性状，重建其属下分类系统。本项目的实施可以显著提高豆腐柴属的分类学研究水平，对于培养江西省植物分类学青年人才也将起到积极作用。

亚洲是豆腐柴属植物的分布中心和多样化中心，同时也是分类最为复杂的地区。本项目采用经典分类"形态-地理学"的研究方法，结合形态学、解剖学、孢粉学研究及大量的野外调查，在开展跨地域标本研究的基础上，对亚洲豆腐柴属植物进行了全面的分类学研究，主要取得以下几方面的进展：（1）确定了豆腐柴属在唇形科中的系统位置，发表了新亚科豆腐柴亚科；（2）分别对67种82份花粉材料、122种178份叶脉材料、及55种68份叶片材料进行了解剖学、微形态学观察，较全面地挖掘了大量有价值的分类学性状，为本属植物的鉴定及分类修订提供了依据；（3）确定了中国、泰国、越南、马来西亚、印度尼西亚、日本等国的豆腐柴属植物种类与分布;（4）澄清了大量特有种及疑难类群的分类地位，如大坪子豆腐柴、云南豆腐柴、伞序臭黄荆、恒春豆腐柴、海南豆腐柴、大叶豆腐柴、淡黄豆腐柴、P. collinsiae Craib、P. dubia Craib、P. repens Fletcher、P. atra Merr.、P. congesta Merr.、P. odorata Blanco、P. pubescens Blume等；（5）描述发表了3个新物种，包括缅甸的Premna grandipaniculata和Premna bhamoensis，及越南的Premna vietnamensis；（6）在本项目的支持下，累计发表SCI论文11篇，会议收录摘要5篇，参加国内外学术会议并做报告10次，开展国外野外考察4次，培养研究生2名。