The reproduction of Ochtodes secundiramea (montagne) howe (Gigartinales, Rhizophyllidaceae)

Abstract

This paper gives informations on the type of carpogonial branches found in a representative of the family Rhizophyllidaceae, as well as details of the auxiliary cell branches in the genus Ochtodes. Details of the development of the spermatangia in this genus are also presented. The tetrasporic plants, not yet known in this genus are described for the first time. The tetrasporangia are produced in nemathecia and have no sterile filaments in between, and in this respect are similar to the ones found in Rhizophyllis and Desmia the only other two genera of the family. Details of certain peculiarities of the vegetative thallus are also given. This is the first report of Ochtodes secundiramea in the American Western South Atlantic.