Kingdom: Plantae
(Unranked): Angiosperms
(Unranked): Eudicots
(Unranked): Core eudicots
Order: Santalales
Family: Loranthaceae
Genus: Alepis
Species: A. flavida
Binomial name: Alepis flavida
Synonyms: Elytranthe flavida, Loranthus flavidus
Common name: Yellow mistletoe, pirita, piriraki

Alepis flavida is found the North and South Islands including Taranaki. In the North Island, it appears to have always been sparsely distributed and is now declining because of animal pests (including possums), fire, collectors, destruction of habitat and hosts, vegetation succession and fungal diseases.
Yellow mistletoe is the most host-specific mistletoe species in New Zealand, nearly always growing on its principal host tree the black/mountain beech (Nothofagus solandri complex) but it has been recorded on 13 species, all indigenous to New Zealand. 
Alepis flavida is a shrub that can grow up to 2 m across. It has leathery leaves that are 2-6cm long, narrow and dull green with deciduous tip. The leaves sit in pairs on opposite sides of the stem and are thick and fleshy with a matt surface.
Alepis flavida is easily differentiated from other mistletoes by its smaller, yellow-orange flowers which appear December to February. It also tends to grow on branches further out from the host trunk, and its leaves have a faint red margin. Like all other New Zealand Loranthaceae mistletoe species it has fleshy fruits which are bird dispersed.

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Alepis flavida with fruit growing through a hosts canopy.
Alepis flavida fruit Yellow mistletoe-3.JPG

The parasitic Alepis flavida attached to a hosts branch
Alepis flavida Yellow mistletoe-17.JPG

Another parasitic Alepis flavida attached to a hosts branch 
Alepis flavida Yellow mistletoe-2.JPG

Green and ripe orange fruit mid-March
Alepis flavida fruit Yellow mistletoe-1.JPG

Alepis flavida fruit Yellow mistletoe.JPG

The leaves sit in pairs on opposite sides of the stem. 
Alepis flavida Yellow mistletoe-8.JPG

The leaf with a red margin.Alepis flavida Yellow mistletoe-021.JPG 

1-Alepis flavida.jpg 

Thanks to Wikipedia for text and information: