Illicium angustisepalum

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Taxonavigation[edit]

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Ordo: Austrobaileyales
Familia: Schisandraceae
Genus: Illicium
Species: Illicium angustisepalum

Name[edit]

Accepted name: Illicium angustisepalum A.C.Sm.

Synonyms[edit]

  • Illicium jiadifengpi fo. minwanense (B.N. Chang & S.D. Zhang) Qi Lin1,2;
  • Illicium minwanense B.N. Chang & S.D. Zhang1,2;
  • Illicium wuyishanum Q. Lin1,2.

Common names: 大屿八角 da yu ba jiao (pinyin, China)1.

Higher Taxa:

  • Class: Equisetopsida C. Agardh1,2
  • Subclass: Magnoliidae Novák ex Takht.1,2
  • Superorder: Austrobaileyanae (Croizat) Doweld ex M.W. Chase & Reveal1,2
  • Order: Austrobaileyales Takht. ex Reveal1,2
  • Family: Schisandraceae Blume1,2
  • Genus: Illicium L.1,2

Location of natural occurrence: Restricted to Hong Kong Lantau Island, Lantau Peak3,4.

Morphological characteristics: Trees to 11 m tall. Perules oblong to ovate, to 7 mm. Leaves in clusters of 3–6 at distal nodes; petiole 1–2.5 cm; leaf blade oblong-elliptic to elliptic, (5.5–)7–12(–20) × 2–4(–7.5) cm, thinly leathery to leathery, midvein adaxially slightly prominent, secondary veins 6–9 on each side of midvein, abaxially prominent, and adaxially prominent or slightly impressed, base attenuate or decurrent along petiole, apex subacute to acuminate. Flowers axillary or subterminal. Flower peduncle 0.5–2 cm. Tepals (17–)22–33, white or pale yellowish, elliptic (outer) to elliptic-oblong (largest), 14–16 × 3–3.5 mm (largest), thinly papery to submembranous. Stamens 22–25, 2.5–3.2 mm; filaments 1.2–2 mm; connectives truncate to slightly cuspidate; anthers 1.1–1.6 mm; pollen grains tricolpate. Carpels 11–16, 3.5–4 mm; ovary 1.3–1.7 mm; style 1.5–3 mm. Fruit peduncle 1.2–3 cm. Fruit with 11–16 follicles; follicles 1–2.2 × 0.5–1.5 × 0.3–0.8 cm. Seeds 5–8.5 × 4–6 × 2–4 mm. Fl. Feb–Apr, fr. Sep–Oct5.

Applications in folk medicine: Used externally to treat rheumatism and inflammation3,4.

Metabolomic profile (up-to-date): Abietane type diterpenes, seco-prezizaane sesquiterpenes3,4.

References[edit]

  1. Adopted from website: http://tropicos.org/NamePage.aspx?nameid=50099216.
  2. Adopted from website: http://www.theplantlist.org/tpl/record/tro-50099216.
  3. Sy, L. K., & Brown, G. D. (1998). Abietane diterpenes from Illicium angustisepalum. Journal of Natural Products, 61(7), 907–912
  4. Sy, L., & Brown, G. (1998). A prezizaane sesquiterpene from Illicium angustisepalum. Phytochemistry, 49(6), 1715–1717.
  5. Adopted from website: https://web.archive.org/web/20130701143339/http://flora.huh.harvard.edu/china/mss/volume07/Illiciaceae.pdf
For more multimedia, look at Illicium angustisepalum on Wikimedia Commons.