M. I. Loiola, Carla Pereira de Carvalho, R. T. M. Ribeiro, E. Souza
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引用次数: 1
摘要
摘要本研究旨在对巴西东北部塞埃尔州马齿苋科植物进行区系清查和地理分布更新。在2015年3月至2021年3月期间进行了物种采集和观察的实地考察。马齿苋有6种,主要通过习性、边缘和叶片形状、花的颜色、盖的形状和种子的纹饰来识别。所有的物种都出现在cerear州的保护单位:P. elatia, P. halimoides, P. mucronata, P. oleracea, P. pilosa和P. umbraticola。植物区系丰富度最高的是草原稀树草原,记录了所有物种。马齿苋(Portulaca halalimoides)在中亚分布最广,共有17个记录,分布于各种植被类型,尤以草原稀树草原为最。马齿苋(Portulaca mucronata)仅在草原稀树草原登记,是记录数量最少的物种。本文介绍了该物种的鉴定关键、描述、评论、分类关系、物候资料和照片。
Abstract This study aimed to carry out a floristic inventory and update the geographical distribution of Portulacaceae species that occur in the state of Ceará, Northeast Region of Brazil. The field expeditions for collection and observation of species were realized between March/2015 and March/2021. Six species of Portulaca have been recorded in the state of Ceará, being identified mainly by habit, margin and leaf shape, flower coloration, operculum shape, and seed ornamentation. All species occur in Conservation Units in the state of Ceará: P. elatior, P. halimoides, P. mucronata, P. oleracea, P. pilosa and P. umbraticola. The highest floristic richness was found in the Stepic Savanna, where all species were recorded. Portulaca halimoides had the widest distribution in Ceará, with 17 records, occurring in various vegetation types, especially in the Stepic Savanna. Portulaca mucronata was registered exclusively in Stepic Savanna, being the species with the lowest number of records. Identification key, descriptions, comments about the species, taxonomic relationships, phenological data and photographs of the species are presented here.