Diversity of Scleria (Cyperaceae) in Amazonian restinga in Pará state, Brazil

Abstract This study aims to contribute to the knowledge on the taxonomy of Scleria in sandy coastal plains (restinga) in Pará state, Brazil. Material deposited in the herbaria of Museu Paraense Emílio Goeldi (MG), Embrapa Amazônia Oriental (IAN), and Instituto de Estudos Costeiros da Universidade Federal do Pará (HBRA) were analyzed and species were identified using relevant literature, protologues, and types available online. We recorded nine species of Scleria for restinga in the state: Scleria bracteata, S. gaertneri, S. hirtella, S. interrupta, S. macrophylla, S. microcarpa, S. reticularis, S. secans, and S. violacea. An identification key, descriptions, illustrations, and comments about diagnostic characters and geographic distribution are provided for these species.

摘要 本研究旨在拓展巴西帕拉州滨海沙原（restinga）中珍珠茅属（Scleria）的分类学研究知识体系。本研究对馆藏于帕拉恩西·埃米利奥·戈尔德蒂博物馆标本馆（MG）、东亚马孙农业研究公司标本馆（IAN）以及帕拉联邦大学海岸研究所标本馆（HBRA）的标本进行了检视分析，并通过查阅相关分类学文献、原始发表资料以及在线可获取的模式标本完成物种鉴定。本次研究共记录该州滨海沙原分布的9种珍珠茅属植物：苞片珍珠茅（Scleria bracteata）、盖氏珍珠茅（Scleria gaertneri）、硬毛珍珠茅（Scleria hirtella）、间断珍珠茅（Scleria interrupta）、大花珍珠茅（Scleria macrophylla）、小果珍珠茅（Scleria microcarpa）、网状珍珠茅（Scleria reticularis）、割叶珍珠茅（Scleria secans）以及堇色珍珠茅（Scleria violacea）。本研究为上述物种提供了鉴定检索表、形态描述、插图以及关于鉴别特征和地理分布的相关说明。