Vischerioclonium Darienko et Pröschold, 2017

Darienko, Tatyana & Pröschold, Thomas, 2017, Toward a monograph of non-marine Ulvophyceae using an integrative approach (Molecular phylogeny and systematics of terrestrial Ulvophyceae II.), Phytotaxa 324 (1), pp. 1-41 : 35-36

Vischerioclonium Darienko et Pröschold gen. nov.

Diagnosis: The young thallus consists of an abundance of long branched filaments. Vegetative cells of young filaments are square with parietal chloroplasts, a single pyrenoid and a nucleus. End cells are slightly tapered or slightly pointed. The later thallus starts to form irregular rich prostrate and erect filaments. The mature thallus consists mostly of prostrate pluriserial filaments that easy disintegrate into cell packages, which form a short uniserial part consisting of several cells only at the ends. Vegetative cells in pluriserial filaments are rounded. Reproduction occurs via zoospores, akinetes and disintegrating filaments. Akinetes have thick cell wall without special ornamentation. Zoospore are quadriflagellated and lack a cell wall. Sexual reproduction is not observed.

Type species (designated herein): Vischerioclonium submersum Darienko et Pröschold sp. nov.

Investigated strains: UTEX 1913 ( Fig. 23 ).

Figures

FIGURE 23. Morphology of Vischerioclonium submersum UTEX 1913 grown on 3NBBM medium.