Abnormality in the reproductive organs of different genera in order Marchantiales has been described by various workers. The specimen of Marchantia polymorpha L., collected from Mani parvat at Ayodhya in Faizabad exhibits the emergence of an abnormal vegetative branch with gemma cup from the upper half of the archegoniophore. This is supposed to have happened either due to near freaks or by reversion of ancestral characters because compact carpocephala in Marchantiales has been derived by the condensation of the dichotomous branches of the growing point of receptacles.This has been described for the first time from U.P. plains. (Link)
Cited this as: R.S. Kanaujia and C.S. Singh (1975): Abnormality in Archegoniophore of Marchantia polymorpha L. TECHNOLOGY 12(2): 165-166.