Parsonsia

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Parsonsia is a genus of woody vines in the family Apocynaceae. Species occur throughout Indomalaya, Australasia and Melanesia.[1]

Description

The leaves are opposite, the shape and size of juvenile leaves often bearing little resemblance to the adult leaves.[2] The latex may be clear and colourless, pale yellow or milky white.[2] The flowers are green, white, cream, yellow, orange, red, pink or brown, sometimes with contrasting markings. These are followed by elongated pod-like capsules, the two follicles eventually separating to reveal numerous seeds with long, silky hairs.[2]

Taxonomy

The genus was named and described in 1810 by botanist Robert Brown in his paper On the Asclepiadeae published in Memoirs of the Wernerian Natural History Society .[3] He named the genus in honour of James Parsons (1705–1770), an English physician and Fellow of the Royal Society.[4]

The generic name Parsonsia R.Br. (1810) is conserved against the earlier homonym Parsonsia P.Browne which was given to a genus in the family Lythraceae. The latter genus is now included in Cuphea.[5]

Parsonsia is closely related to Artia and Prestonia.[6][7]

Species

File:Parsonsia brownii.jpg
Parsonsia brownii
File:Parsonsia brownii 02.jpg
Parsonsia brownii

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formerly included[1]
  1. Parsonsia balansae Baill. = Artia balansae (Baill.) Pichon ex Guillaumin
  2. Parsonsia barbata Blume = Parameria laevigata (Juss.) Moldenke
  3. Parsonsia brachycarpa Baill. = Artia brachycarpa (Baill.) Boiteau
  4. Parsonsia bracteata Hook. & Arn. = Mandevilla pentlandiana (DC.) Woodson
  5. Parsonsia corymbosa (Jacq.) R.Br. ex Steud. = Pinochia corymbosa (Jacq.) M.E.Endress & B.F.Hansen
  6. Parsonsia diversifolia (Warb.) Markgr. = Lyonsia diversifolia Warb.
  7. Parsonsia floribunda (Sw.) R.Br. ex Steud. = Pinochia floribunda (Sw.) M.E.Endress & B.F.Hansen
  8. Parsonsia francii Guillaumin = Artia francii (Guillaumin) Pichon
  9. Parsonsia galeottiana Baill. = Thenardia galeottiana Baill.
  10. Parsonsia javanica Blume 1826 not (Blume) K. Schum 1895 = Urceola javanica (Blume) Boerl.
  11. Parsonsia leptocarpa Hook. & Arn. = Forsteronia leptocarpa (Hook. & Arn.) A.DC.
  12. Parsonsia lifuana Baill. = Artia lifuana (Baill.) Pichon ex Guillaumin
  13. Parsonsia myrtifolia (Poir.) Roem. & Schult. = Landolphia myrtifolia (Poir.) Markgr.
  14. Parsonsia ovata Wall. ex G.Don = Pottsia laxiflora (Blume) Kuntze
  15. Parsonsia spicata (Jacq.) R.Br. ex Steud. = Forsteronia spicata (Jacq.) G.Mey.

Cultivation

A species from New Zealand, Parsonsia variablis (Variable-leaved Parsonsia), was introduced into cultivation in England in 1847 as a greenhouse plant and was noted to have a sweet scent, however the flowers were regarded as "not very showy".[18] This species is thought to be a form of Parsonsia heterophylla.[11]

References

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  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ Livshultz, T., D. J. Middleton, M. E. Endress, and J. K. Williams.(2007) Phylogeny of Apocynoideae and the APSA Clade (Apocynaceae S.l.). Annals of the Missouri Botanical Garden 94, no. 2: 324–59.
  7. ↑ Morales, J.F.; Endress, M.E.; Liede-Schumann, S. (2017) Sex, drugs and pupusas: Disentangling relationships in Echiteae (Apocynaceae). Taxon 66 (3): 623–644. https://doi.org/10.12705/663.7
  8. ↑ a b Script error: No such module "citation/CS1".
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  11. ↑ a b c Script error: No such module "citation/CS1".
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  13. ↑ a b c d Script error: No such module "citation/CS1".
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  16. ↑ Template:GRIN
  17. ↑ Script error: No such module "citation/CS1".
  18. ↑ Script error: No such module "Citation/CS1".

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