Hedyotis macraei Hook.f. (1880:50)
Taxonomy & Nomenclature
Synonym/s: Oldenlandia macraei (Hook.f.) Kuntze in Revis. Gen. Pl. 1: 292 (1891)
Conservation Status
Rediscovered [by implication] (MOE, 2012:323)
Distribution & Habitat
Sri Lanka
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
IUCN Sri Lanka and the Ministry of Environment and Natural Resources. (2007). The 2007 Red List of Threatened Fauna and Flora of Sri Lanka. Colombo, Sri Lanka. xiii + 148 pp.
MOE (Ministry of Environment). (2012). The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka. viii + 476 pp.
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 7 July 2024]
Wijesundara, Siril, Ranasinghe, Subhani, Jayasinghe, Himesh, Gunawardena, Nadeeka, Fonseka, Gayani and Wijesooriya, Shivanthi. (2020). Angiosperms in Sri Lanka: Present status of Angiosperms in Sri Lanka, pp. 1-168. In: The National Red List 2020 - Conservation Status of the Flora of Sri Lanka. Sri Lanka: Biodiversity Secretariat, Ministry of Environment and the National Herbarium, Department of National Botanic Gardens. xviii + 254 pp.
Scyphostachys pedunculatus Thwaites (1859:157)
Taxonomy & Nomenclature
Conservation Status
Missing (MOE, 2012:328; Wijesundara et al., 2020:131) or Extinct (IUCN Sri Lanka and the Ministry of Environment and Natural Resources, 2007; Christenhusz & Govaerts, 2024; POWO, 2024)
Last record: 1860's (Christenhusz & Govaerts, 2024)
Distribution & Habitat
Sri Lanka
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2023). Uitgestorven. Op plantenjacht rond de wereld: 1-511. Sterck & De Vreese.
Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2024). Plant extinction in the Anthropocene. Botanical Journal of the Linnean Society. https://doi.org/10.1093/botlinnean/boae045 [Appendix S1]
Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
Graner, Torun. (2026). A World Without Trees: An Analysis of Global Tree Extinction Rates, Geographical Distribution and Correlation to Socioeconomic Factors. Master’s Dissertation, School of Natural Sciences, Technology and Environmental Studies, Södertörn University. 41 pp.
IUCN Sri Lanka and the Ministry of Environment and Natural Resources. (2007). The 2007 Red List of Threatened Fauna and Flora of Sri Lanka. Colombo, Sri Lanka. xiii + 148 pp.
MOE (Ministry of Environment). (2012). The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka. viii + 476 pp.
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 7 July 2024]
Wijesundara, Siril, Ranasinghe, Subhani, Jayasinghe, Himesh, Gunawardena, Nadeeka, Fonseka, Gayani and Wijesooriya, Shivanthi. (2020). Angiosperms in Sri Lanka: Present status of Angiosperms in Sri Lanka, pp. 1-168. In: The National Red List 2020 - Conservation Status of the Flora of Sri Lanka. Sri Lanka: Biodiversity Secretariat, Ministry of Environment and the National Herbarium, Department of National Botanic Gardens. xviii + 254 pp.
Psydrax grandifolius (Thwaites) Ridsdale (1996:462)
Taxonomy & Nomenclature
Synonym/s: Canthium didymum var. grandifolium Thwaites in Enum. Pl. Zeyl.: 152 (1859)
Conservation Status
Missing (MOE, 2012:328; Wijesundara et al., 2020:130) or Extinct (IUCN Sri Lanka and the Ministry of Environment and Natural Resources, 2007; Christenhusz & Govaerts, 2024; POWO, 2024)
Last record: 1850's (Christenhusz & Govaerts, 2024)
Distribution & Habitat
Sri Lanka
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2023). Uitgestorven. Op plantenjacht rond de wereld: 1-511. Sterck & De Vreese.
Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2024). Plant extinction in the Anthropocene. Botanical Journal of the Linnean Society. https://doi.org/10.1093/botlinnean/boae045 [Appendix S1]
Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
Graner, Torun. (2026). A World Without Trees: An Analysis of Global Tree Extinction Rates, Geographical Distribution and Correlation to Socioeconomic Factors. Master’s Dissertation, School of Natural Sciences, Technology and Environmental Studies, Södertörn University. 41 pp.
IUCN Sri Lanka and the Ministry of Environment and Natural Resources. (2007). The 2007 Red List of Threatened Fauna and Flora of Sri Lanka. Colombo, Sri Lanka. xiii + 148 pp.
MOE (Ministry of Environment). (2012). The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka. viii + 476 pp.
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 7 July 2024]
Wijesundara, Siril, Ranasinghe, Subhani, Jayasinghe, Himesh, Gunawardena, Nadeeka, Fonseka, Gayani and Wijesooriya, Shivanthi. (2020). Angiosperms in Sri Lanka: Present status of Angiosperms in Sri Lanka, pp. 1-168. In: The National Red List 2020 - Conservation Status of the Flora of Sri Lanka. Sri Lanka: Biodiversity Secretariat, Ministry of Environment and the National Herbarium, Department of National Botanic Gardens. xviii + 254 pp.
Ophiorrhiza pallida Thwaites (1859:140)
Taxonomy & Nomenclature
Conservation Status
Missing (MOE, 2012:326; Wijesundara et al., 2020:129) or Extinct (IUCN Sri Lanka and the Ministry of Environment and Natural Resources, 2007; Christenhusz & Govaerts, 2024; POWO, 2024)
Last record: 1854 (Christenhusz & Govaerts, 2024)
Distribution & Habitat
Sri Lanka
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2023). Uitgestorven. Op plantenjacht rond de wereld: 1-511. Sterck & De Vreese.
Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2024). Plant extinction in the Anthropocene. Botanical Journal of the Linnean Society. https://doi.org/10.1093/botlinnean/boae045 [Appendix S1]
Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
IUCN Sri Lanka and the Ministry of Environment and Natural Resources. (2007). The 2007 Red List of Threatened Fauna and Flora of Sri Lanka. Colombo, Sri Lanka. xiii + 148 pp.
MOE (Ministry of Environment). (2012). The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka. viii + 476 pp.
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 7 July 2024]
Wijesundara, Siril, Ranasinghe, Subhani, Jayasinghe, Himesh, Gunawardena, Nadeeka, Fonseka, Gayani and Wijesooriya, Shivanthi. (2020). Angiosperms in Sri Lanka: Present status of Angiosperms in Sri Lanka, pp. 1-168. In: The National Red List 2020 - Conservation Status of the Flora of Sri Lanka. Sri Lanka: Biodiversity Secretariat, Ministry of Environment and the National Herbarium, Department of National Botanic Gardens. xviii + 254 pp.
Lasianthus thwaitesii thwaitesii Hook.f. (1880:185)
Taxonomy & Nomenclature
Synonyms: Mephitidia tomentosa Thwaites in Enum. Pl. Zeyl.: 145 (1859), nom. illeg.; Nonatelia thwaitesii (Hook.f.) Kuntze in Revis. Gen. Pl. 1: 291 (1891)
Conservation Status
Rediscovered (Wijesundara et al., 2020:154)
Distribution & Habitat
Sri Lanka
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
IUCN Sri Lanka and the Ministry of Environment and Natural Resources. (2007). The 2007 Red List of Threatened Fauna and Flora of Sri Lanka. Colombo, Sri Lanka. xiii + 148 pp.
MOE (Ministry of Environment). (2012). The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka. viii + 476 pp.
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 7 July 2024]
Wijesundara, Siril, Ranasinghe, Subhani, Jayasinghe, Himesh, Gunawardena, Nadeeka, Fonseka, Gayani and Wijesooriya, Shivanthi. (2020). Angiosperms in Sri Lanka: Present status of Angiosperms in Sri Lanka, pp. 1-168. In: The National Red List 2020 - Conservation Status of the Flora of Sri Lanka. Sri Lanka: Biodiversity Secretariat, Ministry of Environment and the National Herbarium, Department of National Botanic Gardens. xviii + 254 pp.