Fundador: A.R.H. Schultz. Coorde- nator: L.R.M.Batista. Fasc. 015: Correa Vianna, Eny: Marchantiales.1985. (Bol.Inst.Biocienc. Porto Alegre, No. 38). 64 pls. (line-drawings). 213 p. gr8vo. Paper bd. - In Portuguese.

Commentaries are made on the situation of Hepaticology in Brazil.Different taxa of Hepaticopsida are identified, together with thepresentation of artificial keys for their determinations. The followingspecies of Marchantiales collected in Rio Grande do Sul State aredescribed and illustrated: Corsinia coriandrina (Spreng.) Lindbg.,Targionia hipophylla L., Plagiochasma rupestre (Forst.) Steph., Rebouliahemisphaerica (L.) Raddi, Asterella venosa (Lehm. et Ldbg.) Evans,Lunularia cruciata (L.) Du Mortier forma cruciata, Lunularia cruciata(L.) Du Mortier, forma thaxteri (Evans et Herz.) G. Haessel deMenendez, Marchantia polymorpha L., Marchantia berteroana Lehm. etLdbg., Marchantia chenopoda L., Marchantia papillata Raddi, Dumortierahirsuta (Sw.) Nees, Oxymitra paleacea Bischoff, Ricciocarpus natans(L.) Corda, Riccia curtisii (Aust.) Steph., Riccia stenophylla Spruce,Riccia cavernosa Hoffm. emend. Raddi, Riccia paranaensis G.H. deMenendez, Riccia jovet-astii sp.n., Riccia paraguayensis Spruce, Ricciamembranacea Gottsche e Ldbg., Riccia hirta (Aust.) Underw., Ricciaaustinii Steph., Riccia fruchartii Steph., Riccia plano-biconvexa Steph.