In the process of undertaking a comprehensive review of the pteridophytes of the Solomon Islands, multiple unidentified specimens of the fern genus Ptisana Murdock (Marattiaceae) were collected. Morphological and molecular phylogenetic analyses as well as field observations were required to identify the Solomon Islands taxa. Four species and one variety are recognized from the Solomon Islands: Ptisana ambulans Murdock & C.W. Chen, sp. nov., Ptisana decipiens Murdock & C.W. Chen, sp. nov., Ptisana decipiens var. delicata Murdock & C.W. Chen, var. nov., Ptisana papuana (Alderw.) Murdock & C.W. Chen, comb. nov., and Ptisana smithii (Mett. ex Kuhn) Murdock. The complexities in the identification of Solomon Islands collections show the limits of morphology in the genus and illuminate a path forward for untangling the Ptisana taxonomy on a broader scale.

中文翻译：

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所罗门群岛蕨类植物 Ptisana（Marattiaceae）的亲缘关系，以及两个新物种的描述


在对所罗门群岛蕨类植物进行全面审查的过程中，收集了多个蕨类植物 Ptisana Murdock（Marattiaceae）属的不明标本。需要进行形态学和分子系统发育分析以及实地观察来鉴定所罗门群岛的分类单元。所罗门群岛有四个物种和一个变种：Ptisana ambulans Murdock 和 CW Chen, sp.。 11 月，Ptisana decipiens Murdock 和 CW Chen，sp。十一月，Ptisana decipiens var.熟食 Murdock & CW Chen, var. 11 月，Ptisana papuana (Alderw.) Murdock 和 CW Chen，梳子。 11 月，和 Ptisana smithii (Mett. ex Kuhn) Murdock。所罗门群岛收藏品鉴定的复杂性显示了该属形态的局限性，并为在更广泛的范围内理清 Ptisana 分类学指明了前进的道路。