A new monotypic sequestrate genus, Longistriata is described based on collections from the Neotropical forest of Atlantic forest in Paraíba, Northeast Brazil - an area known for its high degree of endemism. The striking features of this new fungus are the hypogeous habit, the vivid yellow peridium in mature basidiomes, broadly ellipsoid basidiospores with a distinct wall that is ornamented with longitudinal striations and lageniform cystidia with rounded apices. Phylogenetic analysis, based on LSU and tef-1α regions, showed that the type species, Longistriata flava, is phylogenetically sister to the monotypic sequestrate African genus Mackintoshia in Boletaceae. Together these two species formed the earliest diverging lineage in the subfamily Zangioideae. Longistriata flava is found in nutrient-poor white sand habitats where plants in the genera Coccoloba (Polygonaceae) and Guapira (Nyctaginaceae) are the only potential ectomycorrhizal host symbionts.

中文翻译：

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Longistriata flava (Boletaceae, Basidiomycota) - 来自巴西大西洋森林的一种新的单型螯合属和种。

一种新的单型螯合属， Longistriata 是根据巴西东北部帕拉伊巴大西洋森林新热带森林的收藏品进行描述的，该地区以其高度的特有性而闻名。这种新真菌的显着特征是次生习性、成熟担子群中鲜艳的黄色包囊、宽椭圆形担子孢子，壁上饰有明显的纵向条纹，以及带有圆形顶端的胚状孢子囊。基于 LSU 和 tef-1α 区域的系统发育分析表明，模式种 Longistriata flava 在系统发育上与牛肝菌科中的单型隔离非洲 Mackintoshia 属相似。这两个物种一起形成了 Zangioideae 亚科中最早的分叉谱系。