Validation of subordinal names for “ Systema Angiospermarum ” Author Shipunov, Alexey Department of Biology, Minot State University, 500 W University Ave, Minot, ND 58707, U. S. A.; email: dactylorhiza @ gmail. com Author Reveal, James L. L. H. Bailey Hortorium, Department of Plant Biology, 412 Mann Library Building, Cornell University, Ithaca, New York 14853 - 4301, U. S. A.; email: James L. Reveal, jlr 326 @ cornell. edu text Phytotaxa 2011 2011-02-04 16 63 64 http://biotaxa.org/Phytotaxa/article/view/phytotaxa.16.1.5 journal article 6266 10.11646/phytotaxa.16.1.5 fcb6a738-80ce-4cbf-a134-3416925c76ec 1179-3163 4893977 Petrosaviineae Shipunov , nom. nov. , based on Petrosavianae Doweld, Tent . Syst. Pl. Vasc.: lx. 23 December 2001. —Type: Petrosavia Becc. ( 1871 ).