A SYNOPSIS OF THE REVISED SYSTEM FOR THE CLASSIFICATION OF CHARACEAE

All charophytes,whether living or fossil,are placed in a single class,theCharophyceae.This is generally divided into the following three orders:theSycidiales,Trochiliscales,and Charales.All living genera are referred to the familyCharaceae.J.Groves‘(1935)and R.D.Wood‘s(1962)systems for the classification ofthe Characeae were quite generally followed until today.Groves and most phyco-logists think that the corticate forms(e.g.Chara)have been derived from the