Fernseea is an endemic Atlantic rainforest genus of Bromeliaceae comprising only two species: the endangered Fernseea itatiaiae and the critically endangered Fernseea bocainensis. A taxonomic overview of Fernseea is provided, including complete morphological and leaf anatomy descriptions of its taxa and comments on their taxonomy, biogeography, and conservation status, along with a key to facilitate the identification of the two species of Fernseea. A neotype for F. itatiaiae is designated, and a new form, F. bocainensis forma brevifolia, which cooccurs with the typical form, is described based on its distinctive vegetative morphology.

中文翻译：

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蕨类植物分类学：巴西特有和濒危的凤梨科属

Fernseea 是一种特有的大西洋热带雨林凤梨科属，仅包括两个物种：濒临灭绝的 Fernseea itatiaiae 和极度濒危的 Fernseea bocainensis。提供了蕨类植物的分类学概述，包括其分类群的完整形态学和叶解剖描述，以及对其分类学、生物地理学和保护状况的评论，以及有助于识别两种蕨类植物的关键。指定了 F. itatiaiae 的新型，并根据其独特的植物形态描述了与典型形式同时出现的新形式 F. bocainensis forma brevifolia。