PPG I (2016). A community-derived classification for extant lycophytes and ferns. Journal of Systematics and Evolution. 54 (6): 563—603. doi:10.1111/jse.12229. S2CID39980610.
PPG I (2016). A community-derived classification for extant lycophytes and ferns. Journal of Systematics and Evolution. 54 (6): 563—603. doi:10.1111/jse.12229. S2CID39980610.