Urceolina × grandiflora
The illustration of Urceolina × grandiflora in the original publication. The green lines below the staminal cup are filamental traces along the perianth tube.
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Amaryllidoideae
Genus: Urceolina
Species:
U. × grandiflora
Binomial name
Urceolina × grandiflora
Synonyms[1]
  • Eucharis × grandiflora Planch. & Linden
  • Eucharis × lowii Baker
  • Eucharis × mastersii Baker
  • Urceolina × lowii (Baker) Traub
  • Urceolina × mastersii (Baker) Traub

Urceolina × grandiflora, formerly known as Eucharis × grandiflora, is a natural hybrid putatively between U. moorei and U. sanderi of the family Amaryllidaceae, native to western Colombia and western Ecuador.[1]

Urceolina × grandiflora bulb with scale bar (20 cm)

The aneutriploid species U. amazonica is often misidentified as U. × grandiflora. Both of them are sterile plants with large fragrant white flowers, but they differ in leaf length, free filament shape, and staminal cup length:[2]

  • U. × grandiflora has shorter leaf blades (20–33 cm × (10–)13–16 cm), linear or narrowly subulate free filaments (1–1.5 mm wide at the base), and staminal cups (5–7 mm long to the apex of teeth) shorter than free filaments (7–8.5(–10) mm long).
  • U. amazonica has longer leaf blades ((20–)30–40(–50) cm × (10–)12–18 cm), subulate free filaments (2.8–3.4 mm wide at the base), and staminal cups (11.2–13.8 mm long to the apex of teeth) longer than free filaments (6.5–8(–10) mm long).

References

  1. 1 2 "Urceolina × grandiflora (Planch. & Linden) Traub". Plants of the World Online. Kew Science. Retrieved 2023-06-28.
  2. ↑ Meerow, Alan W. (1989). "Systematics of the Amazon lilies, Eucharis and Caliphruria (Amaryllidaceae)". Annals of the Missouri Botanical Garden. 76 (1): 136–220. doi:10.2307/2399347. ISSN 0026-6493. JSTOR 2399347.
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