Contributo allo Studio delle morfosi che si riscontrano sui Serpentini (possibilità di chemiomorfosi)

Summary

The Ȧ. takes in consideration the chemical composition of Stachys recta var. serpentini ashes, taken from the serpentine substratum of Monte Ferrato near Florence to compare it to Stachys recta typica, taken from Monte Rinaldi near Florence; besides the structure and composition of their substrata. He points out the greater quantity of Mg and Ni in Stachys recta var. serpentini and its substratum than in Stachys recta typica and its substratum. Lastly he notices that clorures and sulphates are in a superior quantity in the serpentine soil than in normal soil, while in some other cases the contrary has been related (see Novak). So that the A. believes that the Mg and Ni quantity, caracteristic differentieting the two plants and their substrata, has a determined importance for the porpuse of the serpentine morphosis.