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NZ Plants

Plagiochasma rupestre

Family: Aytoniaceae

Plagiochasma rupestre has a distinctive bluish-green, branching thallus with purplish margins. Epidermal pores are present and are bounded by a ring of 4-5 cells. The ventral surface has two types of rhizoids as well as unusually well developed scales which exhibit a considerable variety in form and structure.  Female and male gametangia are borne on erect branches of the thallus called archegoniophores (female) and antheriodiophores (male). 

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