Distance-based phylogenetic network implemented in SplitsTree 6. TAI, IND, BAR, and TAS are each separated into two intraspecies lineages that exhibit reticulated relationships with other species. TAI,S. taiwanensis ; IND, S. indica ; PLA, S. playfairii ; AUS, S. austrotaiwanensis ; HSI, S. hsiehii ; TAS, S. tashiroi ; BAR, S. barbata .