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首页> 外文期刊>The Lichenologist >A new riparian species of Ramalina (Ramalinaceae) from Brazil, with a key to neotropical saxicolous species
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A new riparian species of Ramalina (Ramalinaceae) from Brazil, with a key to neotropical saxicolous species

机译：来自巴西的新河岸（Ramalinaceae）的新河岸物种，具有新山脉物种的关键

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摘要

The new species Ramalina fleigiae from Brazil is described growing on rocks in riverbeds in high altitude grasslands of southern Brazil. It grows in areas with constant water flow, sometimes almost immersed, and always in exposed habitats. Through an integrative approach, the detailed description of R. fleigiae includes morphological, anatomical, ecological, chemical and molecular data. Ribosomal DNA-based phylogenies suggest that R. fleigiae is more closely related to a species that shares its habitat preference (R. laevigata) than to the morphologically and chemically similar R. exiguella and R. gracilis. Ramalina fleigiae and R. laevigata can be distinguished by thallus morphology (irregularly flat branches in R. fleigiae vs. flat to canaliculate in R. laevigata) and pattern of chondroid tissue, as genetic distances between them are compatible with the interspecific range. It is possible that many species of Ramalina still remain hidden within the morphological or chemical variation of currently accepted species. Combining ecological, anatomical and molecular data will improve our future understanding of this genus.
机译：来自巴西的新物种Ramalina Fleigiae在巴西南部高海拔草原的河床上，岩石上映。它在具有恒定水流的地区生长，有时几乎浸入，并且始终处于暴露的栖息地。通过一种综合方法，R.Fleigiae的详细描述包括形态学，解剖学，生态，化学和分子数据。基于核糖体DNA的系统发育表明，R.Fleigiae与分享其栖息地偏好（R. Laevigata）的物种比在形态学和化学上类似的R. exiguella和R. Gracilis的物种更密切相关。 Ramalina Fleigiae和R. Laevigata可以通过Thallus形态（R.Fleigiae的不规则平坦分支，在R. Laevigata的R. Lavigata的不规则平坦）和软骨组织的图案中，作为它们之间的遗传距离与间隙相容。许多物种仍然存在于当前接受物种的形态或化学变异范围内隐藏。结合生态，解剖学和分子数据将改善我们对该属的未来理解。

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