Alcune novità per la flora dell'Emilia-Romagna: « Saxifraga callosa », « Sorbus chamaemespilus » ed « Epipogium aphyllum »

Riassunto

Dopo una breve introduzione, vengono riferite notizie su tre piante nuove per la flora del-l'Emilia-Romagna. Per ogni segnalazione vengono riportate annotazioni ambientali (altitudine, tipo di substrato, data del ritrovamento). Le segnalazioni sono sistemate nel reticolo cartografico secondo la « Cartografia floristica dell'Europa media ».

Contributions on floristic inheritance of Emilia-Romagna are numerous but often out of date; this is particularly true for basic-flora of single districts (see bibliography).

This contribution is on three plants whose presence was unknown in Emilia-Romagna up to this time; the records are placed in the grid according to « Kartierung der Flora Mitteleuropas ».

Saxifraga callosa Sm. in Dickson ssp. callosa—Polymorphous entity known in Western Maritime Alps, in Central and Southern Apennines, in Sicily and Sardinia. Some recent record are in Tuscan Apennines. Here a record in Emilian Apennine (district of Modena) is reported.

Sorbus chamaemespilus (L.) Crantz—Mountain shrub whose presence is known in Alps, Northern and Southern Apennines; recent records are in Tuscan Apennines. Here are two new records: the first in Mt. Nero (district of Piacenza), the other in Mt. Prado (district of Reggio Emilia).

Epipogium aphyllum Swartz—Very rare orchid known in Alps and Apennines. Some stations are known in Tuscan Apennines. New records are reported; the first is a very rich population near Lagdéi (Parmese Apennines) found by Mr. D. Chesterman; the second is in Mt. Casaròla (district of Reggio Emilia), found by. Mr. L. Bertani.