Some silkweeds (Zygnemataceae, Zygnemales, Charophyceae) from the Upper Murrumbidgee River catchment

Abstract

Twenty two species of Zygnemataceae, two species of Mougeotia, Sirogonium sticticum, fourteen species of Spirogyra and five of Zygnema were encountered in recent collections of macroalgae from the Upper Murrumbidgee River catchment in the Australian Capital Territory and Southern Tablelands of New South Wales, Australia. The majority of the taxa collected were newly reported for Australia. The occurrence and distribution of silkweeds in both flowing water and wetlands in the catchment is similar to that described for other semi-arid parts of the world, notably Spain, south-western United States and the coastal areas of the Netherlands.

Mougeotia (Zygnemaceae, Streptophyta) in Australia

“…For completeness, the four taxa documented by Lewis and Entwisle (2007) -Mougeotia daytonae, M. parvula, M. quadrangulata and M. sinensis -plus an additional species, M. lamellosa -added recently by Skinner (2015) are included in the key and the species list, but are not described or illustrated here, as those resources are readily avalible. Conjugation regular scalariform; gametangia similar to vegetative cells.…”