Biology:Plagiolirion
Plagiolirion is a monotypic genus in the family Amaryllidaceae endemic to Colombia.[1] It has only one known species, Plagiolirion horsmannii,[1] which is rare in the wild and was thought to be extinct until it was rediscovered in the Río Cauca Valley in 1989.[2]
Description
Vegetative characteristics
Plagiolirion horsmannii is a bulbous,[3][4] perennial herb with subglobose[2] or ovoid,[3][5] tunicate, 5–6 cm long, and 5–5.5 cm wide bulbs[2] with fleshy roots.[3] The bulbs have offsets at the base.[2][6]
Generative characteristics
The scapose, umbellate inflorescences with a terete, solid,[2] erect,[7] glaucous green,[5] 49–66 cm long, and 0.5 cm wide scape,[2] bears 10–41[2] white,[4][8] zygomorphic,[9] inodorous, protrandrous, pedicellate,[3] 2.5–3 cm long,[2] and 3–4 cm wide flowers.[8] The thin pedicels are 1.5–2 cm long.[2]
Cytology
The diploid chromosome number of Plagiolirion horsmannii is 2n = 46.[2][9]
Taxonomy
The genus and species were first described by John Gilbert Baker in 1883.[3] The genus is placed in the tribe Eucharideae.[10]
Etymology
The generic name Plagiolirion, from plagios meaning 'oblique' and leirion meaning 'lily',[6] is derived from the floral morphology.[5] The specific epithet horsmannii honours Fred Horsman,[7] who imported the species to Colchester, United Kingdom.[8][5][6]
Ecology
Habitat
It occurs in the Colombian Andes.[6]
References
- ↑ 1.0 1.1 "Plagiolirion Baker" (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/1588-1.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 Alan W. Meerow and Philip Silverstone-Sopkin. 1995. The rediscovery of Plagiolirion horsmannii Baker (Amaryllidaceae) Brittonia 47(4): 426-431
- ↑ 3.0 3.1 3.2 3.3 3.4 Baker, J. G. (1883). Plagiolirion horsmannii. Gard. Chron, 2(38), 1888.
- ↑ 4.0 4.1 The Gardeners' Chronicle: A Weekly Illustrated Journal of Horticulture and Allied Subjects. p. 105. (1883). Vereinigtes Königreich: Gardeners Chronicle.
- ↑ 5.0 5.1 5.2 5.3 Weathers, J. (1890). Plagiolirion horsmannii. Gardeners’ Chronicle, p. 262.
- ↑ 6.0 6.1 6.2 6.3 Weathers, J. (2009). The Bulb Book. p. 398. USA: Applewood Books.
- ↑ 7.0 7.1 The Garden: An Illustrated Weekly Journal of Gardening in All Its Branches. p. 42. (1884). Vereinigtes Königreich: (n.p.).
- ↑ 8.0 8.1 8.2 Wiener illustrirte Garten-Zeitung: Organ d. K. K. Gartenbau-Gesellschaft in Wien. p. 94. (1884). Österreich: Frick.
- ↑ 9.0 9.1 Silverstone-Sopkin, P. A. (2011). Los muertos vivientes: La historia natural de cuatro lirios amazónicos del suroccidente de Colombia (Eucharis y Plagiolirion, Amaryllidaceae). pp. 24–25. Universidad del Valle.
- ↑ Plagiolirion. (n.d.). Pacific Bulb Society. Retrieved March 4, 2025, from https://www.pacificbulbsociety.org/pbswiki/index.php/Plagiolirion
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