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NZ Plants

Monoclea forsteri

Family Monocleaceae

Monoclea forsteri is the largest of the New Zealand thalloid liverworts, reaching lengths of 20 cm and forming colonies several metres across.  The thallus is a glossy dark green and lacks a midrib but is thickest in the ventral line. The ventral surface has colourlelss rhizoids which are most numerous along the mid-line. Male plants form antheridia in small raised receptacles on the dorsal surface; female plants form archegonia containing eggs on or close to the thallus margin. Sporangia are unusual in that they open along one seam to release spores. 

An endemic species widespread throughout New Zealand along streams and damp places.