Galanthus (convolute). He merged "Nivalis" and "Plicati" into series "Galanthus", and divided "Latifolii" into two subseries, "Glaucaefolii" and "Viridifolii" . Early molecular phylogenetic studies confirmed the genus was monophyletic and suggested four clades, which were labelled as series, and showed that Davis' subseries were not monophyletic. An expanded study in 2013 demonstrated seven major clades corresponding to biogeographical distribution. This study used nuclear encoded nrITS (Nuclear ribosomal internal transcribed spacer), and plastid encoded "matK" (Maturase K), "trnL-F", "ndhF", and "psbK–psbI", and examined all species recognised at the time, and also two naturally occurring putative hybrids. The morphological characteristic of vernation that
San Francisco Flower & Garden Show Francisco Parks Trust). The first show featured a tribute garden to San Francisco landscape architect, Thomas Dolliver Church (1902-1978), designed by Pam-Anela Messenger. For its first eleven years (1986-1997) the show held at Ft. Mason in San Francisco. In 1997 Salmon Bay Events, the Seattle-based company owned by Duane and Alice Kelly that had started the Northwest Flower & Garden Show, acquired the San Francisco Landscape Garden Show, changed its name to the San Francisco Flower & Garden Show, and moved the show from Ft. Mason to the Cow Palace. For the next eleven years (1998-2008) it was held at