Sites chosen for the collection of Sardinian H. italicum.

*The altitude is expressed as meter above sea level (m.a.s.l).The geographical zone, geographic coordinated (UTM E and UTM N), the locality and the elevation above sea level of each site is given, along with the number of individuals sampled within each population (n), and the area of ground colonized by the population (mq).海拔以米为单位计量，基准为海平面（meter above sea level，缩写m.a.s.l.）。每个采样点的地理区域、地理坐标（UTM东向坐标UTM E与北向UTM坐标UTM N）、所在地点以及海拔高度均已给出，同时附带了每个种群的采样个体数量（记为n）以及该种群所占据的地面面积（mq）。