Haplothismia exannulata Airy Shaw (1952:277)



Taxonomy & Nomenclature

Synonym/s: Haplothismia exanulata Airy Shaw [orth. error used by Rao et al., 2003:100]


Conservation Status

Last record: October 1951 (Sasidharan & Sujanapal, 2000:131)

Rediscovered on 16 October 2000 (Sasidharan & Sujanapal, 2000:132)



Kerala, India


Biology & Ecology










Original scientific description:

Airy Shaw, H. K. (1952). A new genus and species of Burmanniaceae from South India. Kew Bull. 2: 277-279.


Other references:

Ganeshaiah, K. N. (2005). Recovery of endangered and threatened species: Developing a national priority list of plants and insects. Current Science 89(4): 599-600.

Garrett, Natalie, Viruel, Juan, Klimpert, Nathaniel, Gomez, Marybel Soto, Lam, Vivienne K. Y., Merckx, Vincent S. F. T. and Graham, Sean W. (2023). Plastid phylogenomics and molecular evolution of Thismiaceae (Dioscoreales). American Journal of Botany 110(4): e16141.

Merckx, Vincent, Schols, Peter, Kamer, Hiltje Maas-van de, Maas, Paul, Huysmans, Suzy and Smets, Erik. (2006). Phylogeny and evolution of Burmanniaceae (Dioscoreales) based on nuclear and mitochondrial data. American Journal of Botany 93(11): 1684-1698. 

Nayar, M. P. (1997). Biodiversity Challenges in Kerala and Science of Conservation Biology, pp. 7-80. In: Pushpangadan, P. and Nair, K. S. S. (eds.). Biodiversity of Tropical Forests – the Kerala Scenario. Trivandrum, Kerala: STEC. [listed the species as Extinct; fide Sasidharan & Sujanapal, 2000:131]

Rao, C. Kameswara, Geetha, B. L. and Suresh, Geetha. (2003). Red List of Threatened Vascular Plant Species in India: Compiled from the 1997 IUCN Red List of Threatened Plants. ENVIS Centre on Floral Diversity, Botanical Survey of India, Kolkata. xxiv + 144 pp. [automatic download]

Sasidharan, N. and Sujanapal, P. (2000). Rediscovery of Haplothismia exannulata Airy Shaw (Burmannicaceae) from its type locality. Rheedea 10(2): 131-134.

Sasidharan, N. (2002). Floristic studies in Parambikulam Wildlife Sanctuary. KFRI Research Report, Kerala Forest Research Institute, Peechi.

Sebastine, K. M. and Ramamurthy, K. (1966). Studies on the Flora of Parambikulam and Aliyar Submergible Areas. Bull. Bot. Surv. India 8: 169-182. 

Vajravelu, E. (1990). Flora of Palghat District, Including Silent Valley National Park, Kerala. Calcutta: Botanical Survey of India. [did not find this species]


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