Spathiphyllum wallisii is part of the Araceae family and is native to Venezuela and Columbia.
It is considered a classic houseplant which soaks up extra moisture from the air if you have some damp. S. wallisii has dark, glossy leaves and an inflorescence that is composed of a spadix (long pointy part) and a tear-shaped spathe (looks like a white petal sheath). They can grow to about 60cm in height and spread. 
 
The genus Spathiphyllum means leafy-spathe.  The specific epithet wallisii is named after Guztav Wallis, a collector in the Andes for the William Bull nursery in Chelsea.
 
Pot size: 12cm pot
Height: Approximately 40cm
 
Available in other sizes.
 
Secrets to success
 
Temperature: Between 12-24°C.
 
Light: Filtered sun, can handle some shade.
 
Water: Between spring and autumn, keep this one moist. Allow the top to dry out in winter.
 
Air Humidity: Spathiphyllum prefer higher humidity, this can be achieved by placing on a tray of watered pebbles and using a humidifier.
 
Fertilising: Use a balanced liquid fertiliser every two weeks between early spring to late autumn.
 
Potting mix: Use a well draining mix containing pumice or perlite.
 
This plant is toxic; keep out of reach of pets and children.