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The single tree from parsimony analysis of combined plastid DNA and ITS analysis with nine taxa excluded (see text; length = 347, CI = 0·61, RI = 0·85). Bootstrap percentages >50 % are shown above branches. Two contrasting views of generic delimitation (see text) and the subgenera and sections of Li (1998) are indicated on the right. Abbreviations are as in Fig. 2.
