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
Flower Garden of Isfahan Flower Garden of Isfahan The Flower garden of Isfahan was one of Iran's great green space projects, which was completed in 1990s in Isfahan. The garden serves multiple purposes. It's a recreational, cultural, educational and research center. The buildings of the garden have Iranian traditional elements. The entrance pavilion includes a building with the dimensions of 6x9 meters and a height of 6 m. At the ground floor, there's an information office. The whole landscape of the garden can be viewed from the deck of the building's first floor. The second floor includes a hall for showing movies and slides