The species of Massalongia recorded and described from the Southern Hemisphere are revised and it is shown that only one is present; M. patagonica which is widespread, with populations in Australia and New Zealand that differ from the South American populations, but at present best regarded as part of the variation of that species. Records from this hemisphere of all other species placed in the genus are incorrect. The type species, M. carnosa, is restricted to the Northern Hemisphere. Two species, M. antarctica and M. novozelandica cannot be identified precisely due to lack of sufficient type material and with the types as the only collections known of these, but none belongs in Massalongia according to available data. Massalongia griseolobata (from Gough Isl.) is shown here to belong in the Pannariaceae and is part of the parmelielloid clade. M. intricata (from South Georgia) and M. olechiana (from South Shetland) have both recently been correctly transferred to the genus Steinera in the Arctomiaceae.

中文翻译：

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南半球的Massalongia属（苔藓状子囊菌）。

对南半球记录和描述的马萨隆吉亚物种进行了修订，结果表明只存在一种。patagonica分布广泛，在澳大利亚和新西兰的种群不同于南美种群，但目前最好将其视为该物种变异的一部分。来自该半球的该属中所有其他物种的记录均不正确。Carnosa类型种仅限于北半球。由于缺乏足够的类型材料，并且不能将其作为唯一已知的物种，因此无法精确地识别出南极M. novozelandica和南极M. novozelandica这两个物种，但根据现有数据，它们均不属于马萨龙尼亚。此处显示的Massalongia griseolobata（来自Gough Isl）属于Pannariaceae，属于parmelielloid进化枝。M.