Utricularia dichotoma

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Utricularia dichotoma
Utricularia dichotoma image 01.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lentibulariaceae
Genus: Utricularia
Subgenus: Utricularia subg. Polypompholyx
Section: Utricularia sect. Pleiochasia
Species:
U. dichotoma
Binomial name
Utricularia dichotoma
Synonyms
  • Pleiochasia dichotoma
    (Labill.) Barnh. (1916)
  • Utricularia billardieri
    F.Muell. (1868) nom.illeg.
  • Utricularia canacorum
    Pellegr. (1920)
  • Utricularia colensoi
    Hook.f. (1853)
  • Utricularia dichotoma var. uniflora
    (R.Br.) Benth. (1869) [= U. uniflora ]
  • Utricularia linearifolia
    Benj. (1847) [=U. dichotoma/U. inaequalis ]
  • Utricularia monanthos
    Hook.f. (1860)
  • Utricularia moorei
    F.E.Lloyd (1936)
  • Utricularia novae-zelandiae
    Hook.f. (1853)
  • Utricularia oppositiflora
    R.Br. (1810)
  • Utricularia oppositifolia
    Spreng. (1824) sphalm.typogr.
  • Utricularia rotundifolia
    auct. non Merl ex Luetz.: F.E.Lloyd (1937) nom.nud.
  • Utricularia speciosa
    R.Br. (1810)
  • Utricularia subsimilis
    Colenso (1884)
  • Utricularia vulcanica
    Colenso (1894)
Habit Utricularia dichotoma image 02.jpg
Habit

Utricularia dichotoma, commonly known as fairy aprons, [2] is a variable, perennial species of terrestrial bladderwort. It is a widespread species with mauve or purple fan-shaped flowers on a slender stalk and usually grows in wet locations.

Description

Utricularia dichotoma is a perennial herb with numerous underground trailing stems with bladders 1.5–2 mm (0.059–0.079 in) in diameter. It has absent or a few variable leaves, oval-spathulate 2–4 mm (0.079–0.157 in) long to narrow-lanceolate and up to 40 mm (1.6 in) long. The former is more typical of plants growing in wet soil, the latter of plants growing fully submerged. The inflorescence are borne on a slender, wiry stem 5–50 cm (2.0–19.7 in) long, they are solitary, in pairs or whorls of three or four flowers in clusters near the end of the stem. Each mauve or purple flower has a small upper petal and a broader, semicircular lower lip 1–2 cm (0.39–0.79 in) wide with two or three prominent white or yellow markings, and the corolla is 12–22 mm (0.47–0.87 in) long. Flowering occurs from August to April and the fruit is a globular capsule up to 4 mm (0.16 in) wide. [3] [4] [5] [6]

Taxonomy and naming

Utricularia dichotoma was first formally described in 1805 by Jacques Labillardière and the description was published in Novae Hollandiae Plantarum Specimen . [7] [8] The specific epithet (dichotoma) is Latin for "dividing into pairs" and refers to the double arrangement of flowers which this species often displays. [9]

Distribution and habitat

Fairy aprons has a large range and is native to New Caledonia, it grows in all states of Australia and in New Zealand on the North Island, South Island and Stewart Island/Rakiura - this being the most southerly location at which a member of this genus occurs. It grows in moist and wet locations. [5] [9]

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References

  1. "Utricularia dichotoma". Australian Plant Census. Retrieved 5 November 2021.
  2. "Utricularia dichotoma". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. W.M. Curtis. 1967. The Student's Flora of Tasmania. St. David's Park Publishing, Hobart, Tasmania. Vol. 3, p. 536
  4. Fairley, Alan; Moore, Philip (2010). Native Plants of the Sydney Region (3rd ed.). Sydney: Jacana Books. p. 405. ISBN   9781741755718.
  5. 1 2 Sharp, Sarah; Rehwinkel, Rainer; Mallinson, Dave; Eddy, David (2015). Woodland Flora a field guide for the Southern Tableland (1st ed.). Canberra: Friends of Grasslands. p. 202. ISBN   9780994495808.
  6. Rowe, R.; Brown, E.A. "Utricularia dichotoma". PlantNET-NSW flora online. Royal Botanic Garden Sydney. Retrieved 6 November 2021.
  7. "Utricularia dichotoma". Australian Plant Name Index. Retrieved 6 November 2021.
  8. Labillardière, Jacques (1805). Novae Hollandiae Plantarum Specimen. Vol. v.1. p. 11.
  9. 1 2 Bruce Salmon (2001), Carnivorous Plants of New Zealand, Ecosphere Publications