MacPherson-Macleay Overlap

FIGURE 19.1 (A) to (E) Distribution patterns of pleurocarpous mosses in the Australasian region summarized as tracks. (F) Generalized distribution track in the southern Pacific Ocean based on the distributions of pleurocarpous mosses X = Macpherson-Macleay Overlap. 

FIGURE 19.6 Distribution of Lopidium (Hypopterygiaceae). See text for details. X = Macpherson-Macleay Overlap. 

By mapping the distributions of individual species it is apparent that different species have distributions that highlight different biological relations between areas within Australasia. The addition of species reinforces the pattern by repeating distributions wholly or partly, or by the patterns marking boundaries for taxa. For example. Track 1 is a southern boundary for several species examined here and is also the distribution of other species (e.g., Camptochaete subporotrichoides). Similarly, Track 3 (central eastern Australia-New Caledonia) corresponds to the distribution of some species (Camptochaete leichhardtii). It is also a boundary within Camptochaete, and a northern or southern boundary for many other species. As noted above, the eastern end of this track is known as the Macpherson-Macleay Overlap, an important locality in the region. 

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