Wuodendron

{{Speciesbox

| image =

| image_caption =

| status = EN

| status_system = IUCN3.1

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| display_parents = 3

| genus = Wuodendron

| parent_authority = B.Xue, Y.H.Tan & Chaowasku{{r|xue2018}}

| species = praecox

| authority = (Hook.f. & Thomson) B.Xue, Y.H.Tan & X.L.Hou{{r|xue2018}}

| synonyms_ref = {{r|powo77186105-1}}

| synonyms = * Polyalthia litseifolia {{small|C.Y.Wu ex P.T.Li}}

Desmos praecox {{small|(Hook.f. & Thomson) Saff.}}
Unona praecox {{small|Hook.f. & Thomson}}

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Wuodendron is a genus of plants in the family Annonaceae and tribe Miliuseae, containing the type and only species Wuodendron praecox.{{r|xue2018}} It is distributed from northeastern India north to southern China and southeast through most of Mainland Southeast Asia.{{r|xue2018|powo}}

Conservation status and description

The single species (under its synonym P. litseifolia) is described as a subtropical and tropical forest tree growing to 40 m tall, with greyish brown bark and glabrous, brown branches. Under this name it has been considered Endangered on the IUCN Red List,{{Cite web|last=Group|first=China Plant Specialist|date=2004-04-30|title=IUCN Red List of Threatened Species: Polyalthia litseifolia|url=https://www.iucnredlist.org/en|access-date=2021-02-07|website=IUCN Red List of Threatened Species}} which considers it to have a much smaller range (only Yunnan, China) than the wider range now recorded, considering the synonyms and revised nomenclature.

The leaves are elliptic and 90-200 × 45-80 mm on 6-10 mm petioles; they are adaxially furrowed, glabrous and often with an axillary bud at the base. Reticulate veins are elevated on both surfaces, with 10-16 secondary veins on each side of midvein.

Inflorescences are single-flowered and axillary, on 20 - 35 mm, glabrous peduncles. Sepals are triangular to lanceolate, approx. 12 mm, puberulent on the outside and glabrous inside. The petals are broadly linear, 60-90 × 7-11 mm, with a midrib and 2-4 parallel secondary veins. There are many stamens, approx. 1.5 mm, truncate at the apices. There are 5 or 6, glabrous carpels, with 3 ovules per carpel; stigmas are clavate and puberulent.

The fruit are oblong to ovoid (30-35 × 20-25 mm) and singular on 10-30 mm stalks; constricted between seeds (typically 3 per monocarp), glabrous and warty. In southern China, flowering is from April-July and fruiting is from May-September.[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200008581 Flora of China: Polyalthia litseifolia C. Y. Wu ex P. T. Li (retrieved March 2021)]

References

{{Reflist|refs=

{{cite web |title=Wuodendron B.Xue, Y.H.Tan & Chaowasku |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77186104-1 |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |access-date=2 December 2020}}

{{cite web |title=Wuodendron praecox (Hook.f. & Thomson) B.Xue, Y.H.Tan & X.L.Hou |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77186105-1 |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |access-date=2 December 2020}}

{{cite journal |last1=Xue |first1=Bine |last2=Tan |first2=Yun-Hong |last3=Thomas |first3=Daniel C. |last4=Chaowasku |first4=Tanawat |last5=Hou |first5=Xue-Liang |last6=Saunders |first6=Richard M. K. |title=A new Annonaceae genus, Wuodendron, provides support for a post–boreotropical origin of the Asian–Neotropical disjunction in the tribe Miliuseae |journal=Taxon |date=2018 |volume=67 |issue=2 |pages=250–266 |doi=10.12705/672.2 |url=https://onlinelibrary.wiley.com/doi/10.12705/672.2 |access-date=2 December 2020|url-access=subscription }}

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Category:Annonaceae

Category:Annonaceae genera

Category:Endangered flora of Asia

Category:Monotypic Magnoliales genera