An anatomical analysis of Evolvulus glomeratus (Convolvulaceae) specimens revealed a new species endemic to a rock outcrop in Pernambuco State, which is described and illustrated herein. Evolvulus saxatilis differs from Evolvulus glomeratus based on morphological and anatomical characters, including corolla and ovary shape, presence of epidermal vesicles in the anthers, boundaries of the anticlinal walls of the seed epidermal cells, sculpture of the periclinal walls, arrangement of xylem vessel elements, presence of pericycle lignification, mesophyll type, and presence of crystalliferous idioblast. A complete description, diagnosis, illustration, distribution map, and taxonomic comments are provided.

中文翻译：

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隐藏在岩石中：解剖揭示Evolvulus L.（旋花科）新种

Evolvulus glomeratus（旋花科）标本的解剖分析揭示了伯南布哥州岩石露头特有的新物种，本文对此进行了描述和说明。Evolvulus saxatilis 与 Evolvulus glomeratus 基于形态学和解剖学特征不同，包括花冠和子房形状、花药中表皮囊泡的存在、种子表皮细胞背斜壁的边界、周壁的雕刻、木质部血管元素的排列，周轮木质化的存在、叶肉类型和结晶成胚细胞的存在。提供了完整的描述、诊断、插图、分布图和分类学评论。