摘要
世界上至今报道的番荔枝科杜氏木属有约80种.糠秕鳞杜氏木群及其近缘种包含16种(现修订至12种),隶属于产热带南美洲的具有26种的杜氏木组.本文是作者经过详尽研究了存于美、英、瑞典、法、荷及巴西等国家25家以上标本馆的1500余份标本(包括每种的模式标本)以及花、果收藏品后对糠秕鳞杜氏本群及其近缘种作的修订.至于本群的形态术语,其附属物被大体上分成两类,即鳞斑和星状毛.次级叶脉可归成两大类,即“单型弯曲”对应“急弯曲”,花序以“与叶对生”和“假顶生”来表述.新定义的和稍微修改过的名词术语成功地用于描述中.文中对分类学历史作了简要讨论.给出了分种检索表以及对该群作为一个总体和对该群中分布最广显示出种下形态变异性活跃的最具变化性的种即糠秕鳞杜氏木作了描述.赫门多夫杜氏木(D.hemmendorffii)及乔安娜杜氏木(D.jonasiana)被归并作为糠秕鳞杜氏木(D.furfuraceea)的异名.
Up to now, ca. 80 species of Dugueiia (Annonaceae) were notid in the world. The D.furfuracea group and its allies containing 16 species (now r'-vised to 12) belong to Sect. Dugueiia which has 26 species all occurring in tropical South America. The present pap'-r is a revision of the group and its allies after the painstakingly study mad'; by the authors on more than 1 500 specimens (including type of each taxa), flower and fruit collections which were kfpt in more than 25 herbaria of United States, Britan, Sweden, The Netherlands and Brazil, etc. As to the morphological terminology of the group, the indument is basically classified into two types, namely, scale and stellate hair. The course of secondary veins seemly falls into two main types, i. e. , 'uniformly curved' vs. 'abruptly curved' and the inflorescence is presented in the erm of 'leaf-opposed' and 'pseudo-terminal'. The newly defined and slightly modified terminology is successfully applied to the description. The taxonomic history is briefly biscusscd. The k''y to the species and the description of the group as a whole are provided. The detailed description of D, furfuracea, the raost widespread and most variable species stowing dynamic diversity of infra-specific morphological and ecological variation, is also presented. D. hcmmendorffii and D. jonasiana are brought into synonymy of -D. furfuracea.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
1992年第1期79-101,共23页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
番荔枝科
糠秕鳞杜氏木
近缘种
key
D. furfnracea group and its allies. Annonaceae
