Questions? AskAuckland

NZ Plants

Plagiochasma rupestre

Family: Aytoniaceae

Plagiochasma rupestre has a distinctive bluish-green, branching thallus with purplish margins. The dorsal surface contains minute epidermal pores which are bounded by a ring of 4-5 cells. The ventral surface has two types of rhizoids as well as unusually well developed, deep crimson scales which exhibit a considerable variety in form and structure.  Female and male gametangia are borne in receptacles on the  dorsal thallus surface. 

Widespread in New Zealand in on different soils, rock and stonework in exposed to shaded locations.