Pseudowintera traversii
| Pseudowintera traversii | |
|---|---|
| File:Pseudowintera traversii 109442401.jpg | |
| Pseudowintera traversii | |
| illustration of Pseudowintera traversii | |
| illustration of Pseudowintera traversii | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Magnoliids |
| Order: | Canellales |
| Family: | Winteraceae |
| Genus: | Pseudowintera |
| Species: | P. traversii
|
| Binomial name | |
| Pseudowintera traversii | |
| Synonyms[3] | |
Pseudowintera traversii, sometimes called Travers horopito,[4] is a species of woody shrub in the family Winteraceae. The specific epithet traversii is in honor of naturalist Henry H. Travers (1844–1928), son of William Thomas Locke Travers.[5][6]
Description
[edit | edit source]Pseudowintera traversii is a densely branched shrub growing up to 2 metres (6 ft 7 in) high.[4] It has coriaceous leaves that are 2–2.5 centimetres (0.79–0.98 in) long and ovate[4] or obovate.[7] The leaves are green-blue underneath and matte green on top,[4] close-set and on stout petioles.[7] The leaves may have reddish margins,[8] but lack the picturesque blotches of P. colorata.[9] However they are described as tasting peppery and pungent.[10] The bark is reddish-brown and rough.[7] The green or yellow flowers appear in January,[10] growing singly or as doubles, or rarely triples,[7] with 5–7 petals and 4–9 stamens.[8] The fruit appears in February[10] as a fleshy berry,[4] that is purplish-black[8][9] and 2–3 millimetres (0.079–0.118 in) in diameter, containing 3–6 seeds.[7]
Like all species in the family Winteraceae, P. traversii lacks vessels in its xylem.[11]
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Growth habit
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Underside of leaves
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A specimen from the Auckland War Memorial Museum
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| Ploidy | haploid[12] |
|---|---|
| Number of chromosomes | 43[12] |
Habitat
[edit | edit source]Like the other species of horopito in Pseudowintera, it is endemic to New Zealand.[4] It is the rarest of the species, and the national government there lists it as "At Risk - Naturally Uncommon."[1] Naturally, it only is found growing in montane shrubland and woodland edges in the South Island in northwest Nelson between Westport and Collingwood.[7] It grows from 600–1,300 metres (2,000–4,300 ft) in elevation.[8]
Ecology
[edit | edit source]Pseudowintera traversii shares a pollinator (possibly a thrips) with P. colorata, as natural hybrids have been found where their ranges overlap.[8] Females of the species Thrips obscuratus (New Zealand flower thrips) have been collected on P. traversii.[13]
References
[edit | edit source]- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Hassler M. (2018). World Plants: Synonymic Checklists of the Vascular Plants of the World (version Dec 2017). In: Roskov Y., Abucay L., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., De Wever A., Nieukerken E. van, Zarucchi J., Penev L., eds. (2018). Species 2000 & ITIS Catalogue of Life, 30th January 2018. Digital resource at http://www.catalogueoflife.org/col/details/species/id/8cfa9e142d5990e21beb50cb9e5c5724 . Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-8858.
- ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e f Allen, H. H. 1982: Flora of New Zealand. Volume I. Volume: Indigenous Tracheophyta - Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledons. First electronic edition, Landcare Research, June 2004. Transcr. A.D. Wilton and I.M.L. Andres. https://floraseries.landcareresearch.co.nz/pages/Taxon.aspx?id=_28eba8dd-7c37-405a-98c8-c36333068505&fileName=Flora%201.xml#_28eba8dd-7c37-405a-98c8-c36333068505 . Accessed 5 February 2018.
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
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