The new genus Sinuicella, an early successional lichen, was found on bare soil in Oregon, USA. The thallus is minute fruticose, grey to nearly black, branching isotomic dichotomous, branches round, 20–90 μm wide in water mount. The cortex is composed of interlocking cells shaped like jigsaw puzzle pieces. Spores are hyaline, 1-septate, 25–40(–50) × 6.5–9(–11) μm. Maximum likelihood phylogenetic analyses on multilocus data sets, first spanning the entire order Peltigerales and then restricted to Peltigeraceae with extended sampling from Solorina and Peltigera, revealed the placement of Sinuicella outside of currently recognized genera, sister to Peltigera, with high support. Based on the phylogenetic, morphological and ecological distinctness of Sinuicella, we formally introduce a new genus represented by the single species S. denisonii. The cyanobiont of S. denisonii is Nostoc from phylogroup XL, Clade 2, Subclade 3 based on the rbcLX marker.

中文翻译：

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Sinuicella denisonii，北美西部榆树科新属新种

新属辛纽氏菌在美国俄勒冈州的裸土上发现了一种早期的演替地衣。菌体呈微小果糖状，灰色至近黑色，分枝等分二分，分枝圆形，在水中宽20-90微米。皮层由形状像拼图块的互锁细胞组成。孢子是透明的，一隔，25–40(–50) × 6.5–9(–11) μm。多位点数据集的最大似然系统发育分析，首先跨越整个顺序藻目然后限制在蕨科从扩展采样索洛丽娜和佩尔蒂格拉, 揭示了辛纽氏菌在目前公认的属之外，姐妹佩尔蒂格拉，支持度高。基于系统发育、形态和生态的独特性辛纽氏菌，我们正式引入一个以单种为代表的新属S.denisonii. 氰基生物S.denisonii是发菜来自系统发育群 XL、进化枝 2、子进化枝 3，基于rbcLX标记。