Galanthus earlier authors had mainly relied on was shown to be highly homoplasious. A number of species, such as "G. nivalis" and "G. elwesii" demonstrated intraspecific biogeographical clades, indicating problems with speciation and there may be a need for recircumscription. These clades were assigned names, partly according to Davis' previous groupings. In this model clade Platyphyllus is sister to the rest of the genus. By contrast another study performed at the same time, using both nuclear and chloroplast DNA but limited to the 14 species found in Turkey, largely confirmed Davis' series and subseries, and with biogeographical correlation. Series "Galanthus" in
Flower Garden Banks National Marine Sanctuary President George H. W. Bush authorized Flower Garden Banks National Marine Sanctuary as the 10th National Marine Sanctuary on January 17, 1992. Stetson Bank was added to the sanctuary in 1996. The Flower Garden Banks National Marine Sanctuary administrative offices and laboratories are located in a renovated historic building, a part of the former Fort Crockett, in Galveston, Texas. Research Vessel MANTA is also located in Galveston, and provides a working platform for researchers. A system of mooring buoys, which reduces resource impacts from anchoring, is maintained by FGBNMS staff. Flower Garden Banks National Marine Sanctuary The Flower Garden Banks