Lepidothamnus laxifolius | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
(unranked): | Gymnospermae |
Division: | Pinophyta |
Class: | Pinopsida |
Order: | Pinales |
Family: | Podocarpaceae |
Genus: | Lepidothamnus |
Species: | L. laxifolius |
Binomial name | |
Lepidothamnus laxifolius Hook.f. Quinn. | |
Lepidothamnus laxifolius, commonly known as the pygmy pine or mountain rimu, is a species of conifer in the family Podocarpaceae. It is endemic to New Zealand, where it is found on North Island, South Island and Stewart Island.
Lepidothamnus laxifolius is a high alpine specialist found in high-altitude bog communities and in scrub, often in association with Halocarpus bidwillii and Podocarpus nivalis . Example locations include Tongariro National Park and Arthur's Pass. On Stewart Island it is found in lowland as well as in montane areas.
It has a scrambling prostrate habit and plants as little as 8 cm in height have been observed in fruit. Branches may be up to 5 mm in diameter and up to 1 metre long. Its cones are red and fleshy, and borne terminally on the horizontal branches. [2] The seed is dark brown on red fleshy scales. [3] It is believed to be the smallest conifer in the world and is rarely bigger than a small low-growing shrub. [4]
The genus Lepidothamnus was once part of Dacrydium in the classification by Bentham and Hooker in 1880. However, current taxonomy separates it as a distinct genus with three species, one endemic to southern Chile and the other two in New Zealand. All three species have a distinctive cone morphology not shared with other podocarps with its erect ovule, as well as the absence of resin ducts in the leaves. These three species also synthesise cupressuflavone as their major biflavonoid – a feature not found in other podocarps. [5] They have narrow, linear spreading juvenile leaves that gradually change into more strongly keeled and appressed scales. Female cones are borne singly and at the ends of branches and each has 3–5 bracts with very elongated bases. Each fertile bracts supports an erect ovule in its axil and this ovule remains erect throughout its development.
Dacrydium cupressinum, commonly known as rimu, is a large evergreen coniferous tree endemic to the forests of New Zealand. It is a member of the southern conifer group, the podocarps. The former name "red pine" has fallen out of common use.
Podocarpus totara is a species of podocarp tree endemic to New Zealand. It grows throughout the North Island and northeastern South Island in lowland, montane and lower subalpine forest at elevations of up to 600 m.
Prumnopitys taxifolia, the mataī or black pine, is an endemic New Zealand coniferous tree that grows on the North Island and South Island. It also occurs on Stewart Island/Rakiura but is uncommon there.
Podocarpaceae is a large family of mainly Southern Hemisphere conifers, comprising about 156 species of evergreen trees and shrubs. It contains 19 genera if Phyllocladus is included and Manoao and Sundacarpus are recognized.
Lagarostrobos franklinii is a species of conifer native to the wet southwestern corner of Tasmania, Australia. It is often known as the Huon pine or Macquarie pine, although it is actually a podocarp (Podocarpaceae), not a true pine (Pinaceae). It is the sole species in the genus Lagarostrobos; one other species L. colensoi formerly included has been transferred to a new genus Manoao. The genus was also formerly included in a broader circumscription of the genus Dacrydium.
A conifer cone is an organ on plants in the division Pinophyta (conifers) that contains the reproductive structures. The familiar woody cone is the female cone, which produces seeds. The male cone, which produces pollen, is usually herbaceous and much less conspicuous even at full maturity. The name "cone" derives from Greek konos (pinecone), which also gave name to the geometric cone. The individual plates of a cone are known as scales. The umbo of a conifer cone refers to the first year's growth of a seed scale on the cone, showing up as a protuberance at the end of the two-year-old scale.
Podocarpus is a genus of conifers, the most numerous and widely distributed of the podocarp family, the Podocarpaceae. The name comes from Greek πούς + καρπός. Podocarpus species are evergreen shrubs or trees, usually from 1 to 25 m tall, known to reach 40 m (130 ft) at times. The cones have two to five fused cone scales, which form a fleshy, berry-like, brightly coloured receptacle at maturity. The fleshy cones attract birds, which then eat the cones and disperse the seeds in their droppings. About 97 to 107 species are placed in the genus depending on the circumscription of the species.
Nageia is a genus of conifers belonging to the podocarp family Podocarpaceae. Nageia includes evergreen shrubs and trees, from one to 54 meters in height. A 2009 treatment of the genus recognized five species. Some authors consider Nageia formosensis to be a separate species from Nageia nagi, thus recognizing six species. The podocarp genera have been reshuffled by various botanists. Most recently, several species formerly classed as Nageia were moved to the new genus Retrophyllum, while Nageia falcata and Nageia mannii were moved to the new genus Afrocarpus.
Afrocarpus is a genus of conifers of the family Podocarpaceae. Two to six species are recognized. They are evergreen trees native to Africa. Afrocarpus was designated a genus in 1989, when several species formerly classified in Podocarpus and Nageia were reclassified.
Dacrydium is a genus of conifers belonging to the podocarp family Podocarpaceae. Sixteen species of evergreen dioecious trees and shrubs are presently recognized. The genus was first described by Solander in 1786, and formerly included many more species, which were divided into sections A, B, and C by Florin in 1931. The revisions of de Laubenfels and Quinn, reclassified the former section A as the new genus Falcatifolium, divided Section C into new genera Lepidothamnus, Lagarostrobos and Halocarpus, and retained Section B as genus Dacrydium.
Lepidothamnus is a genus of conifers belonging to the podocarp family Podocarpaceae. The genus includes three species of dioecious or monoecious evergreen trees and shrubs, and creepers. L. intermedius and L. laxifolius are native to New Zealand. L. fonkii is native to the Magellanic subpolar forests ecoregion of southern Argentina and Chile, where it grows as a low shrub or creeper in moorlands and bogs.
Manoao is a monotypic genus in the family Podocarpaceae. The single species, M. colensoi, known as manoao (Māori), silver pine, Westland pine, or white silver pine, is endemic to New Zealand. Before 1996 it was classified in genus Dacrydium or Lagarostrobos, but has recently been recognised as a distinct genus; some botanists still treat it in Lagarostrobos on the basis that it is not phylogenetically distinct from that genus. In molecular phylogenetic analyses Manoao was found to be related to Parasitaxus and Lagarostrobos, but their exact relationships are unresolved.
Halocarpus bidwillii, commonly known as the mountain pine or bog pine, is a species of conifer in the family Podocarpaceae. It is endemic to New Zealand.
Dacrydium guillauminii, commonly known as cat-tail Rimu or swamp Dacrydium, is a species of conifer in the family Podocarpaceae. It is found only in New Caledonia. It is a slow growing shrub or small tree with roots that grow in water, and reaches a height between 1 and 2 metres.
Lepidothamnus intermedius, the yellow silver pine, is a species of conifer in the family Podocarpaceae. It is endemic to New Zealand.
Libocedrus bidwillii, also called pāhautea, kaikawaka or New Zealand cedar, is a species of Libocedrus, endemic to New Zealand. It is in the cypress family Cupressaceae.
Phyllocladus toatoa, known as toatoa (Māori) or blue celery pine is a species of conifer in the family Podocarpaceae, endemic to New Zealand. It was formerly referred to as P. glaucus.
Podocarpus nivalis, the mountain or snow tōtara, is a species of conifer in the family Podocarpaceae. It is endemic to New Zealand.
Retrophyllum rospigliosii is a species of conifer in the family Podocarpaceae. It is a large evergreen tree native to the montane rainforests of Venezuela, Colombia, Peru, Ecuador and Bolivia in South America.
Retrophyllum vitiense is a species of conifer in the family Podocarpaceae. It is a large evergreen rainforest emergent tree native to Fiji, Indonesia, Papua New Guinea, and Solomon Islands.
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