Poa ligulata Boiss.

Astuti, Giovanni, Bartolucci, Fabrizio, Bernardo, Liliana, Conti, Fabio & Peruzzi, Lorenzo, 2019, Chromosome numbers for the Italian flora: 8, Italian Botanist 8, pp. 117-121 : 117

Poa ligulata Boiss.

Chromosome number.

2 n = 14 ( Fig. 3 )

Voucher specimen.

Italy. Abruzzo. Salendo a Cima delle Murelle in loc. La Carozza (Pennapiedimonte, Chieti) (WGS84: 42.11324N, 14.14273E), rupi e pendii rupestri, 2300 m, 2 August 2011, F. Bartolucci & F. Conti (APP n°59214).

Method.

Squash preparations were made on root tips obtained from cultivated plants. Root tips were pre-treated with 0.4% colchicine for 4 h and then fixed in Carnoy solution for 1 h. After hydrolysis in 1N HCl at 60 °C, the tips were stained with leuco-basic fuchsine.

Observations.

Poa ligulata occurs in the Iberian Peninsula and NW Africa ( Ortega-Olivencia and Devesa 2018). It was not recorded for the Italian flora until recently ( Bartolucci et al. 2018, Conti et al. 2019). This is the first chromosome count for this species in Italy ( Bedini et al. 2010 onwards), and it agrees with previous chromosome numbers published from Spain ( Küpfer 1968, Löve and Kjellqvist 1973). On the basis of a preliminary morphological analysis, the population from central Italy shows peculiar features, and a taxonomic study is in progress.

F. Bartolucci & F. Conti

Figures

Figure 3. Poa ligulata Boiss., 2 n = 14. Scale bar: 10 μm.