Gymnosperms (Seed Producing Plants: Conifers, Cycads, Ginkgo) • Earth.com

Kahikatea

(Dacrycarpus dacrydioides)

galery
en

Description

Dacrycarpus dacrydioides or kahikatea (from its name in the M-ori language) is a coniferous tree endemic to New Zealand. The tree grows to a height of 55 metres (180 ft) with a trunk exceeding 1 metre (3 ft) in diameter, and is buttressed at the base. It is dominant in lowland forest and wetlands throughout the North and South Islands. The leaves are spirally arranged; on young plants, they are awl-shaped, 3 to 8 mm long, and twisted at the base to lie spread to the sides of the shoot in a flat plane; on mature trees, they are scale-like, 1 to 3 mm long, and placed all round the shoot. The cones are highly modified, with the cone scales swelling at maturity into an orange to red, fleshy, aril with a single apical seed 3 to 5 mm in diameter. The seeds are dispersed by birds, which eat the fleshy scale and pass the seeds in their droppings.Before extensive logging, trees of 80 m height were known. A specimen in Pirongia Forest Park in the Waikato region is the tallest native tree in New Zealand at 66.5 metres (218 ft).T-ne Mahuta, the famously large kauri tree (Agathis australis), is 51.2 m.The tree was previously referred to by the misleading name "white pine", despite its not being a pine; the M-ori name kahikatea is now more widely used (other M-ori names are kaikatea, kahika, katea, k-aka, koro-).Like many other species in the family Podocarpaceae, the classification of kahikatea has changed over time, having also been placed in the genera Podocarpus and Nageia. The Waikato still has small stands of natural Kahikatea. The most readily accessible is at Claudelands Bush in the Hamilton suburb of Claudelands which was previously a swamp.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Coniferophyta
Class: Pinopsida
Order:Pinales
Family:Podocarpaceae
Genus:Dacrycarpus
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