Stipa Trichotoma Nees nella selva di San Rossore, nuovo inquilino della flora toscaista

Summary

The Author discovers and describes a new station of Stipa trichotoma Ness (Nassella trichotoma Hackel) in the «Selva di S. Rossore » (Pisa), where it represents an adventitious and probably newly naturalized species for the Tuscan Flora.

The Author refers on the preceedind foundings of this south-American plant in Italy, discussing the complicated sinonimy, and points out the opportunity for the constitution of-a new section Nassellopsis and the interest to include the species in the new edition of «Nuova Flora Analitica d'ltalia» of Adriano Fiori.