Native Plants
 

Disepalum anomalum

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SSN 06968
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Taxonomy

The taxonomic status is pending for approval

Description

Disepalum anomalum is a treelet that can reach height up to 3 m. The Greek words di, which means two, and sepalon, which indicates to the sepal, are combined to form the name Disepalum. The two terms together refer to flower with two sepals. Anomalum, on the other hand, derived from the Latin word anomalus, which means abnormal or diverging from the usual, which is referring to the flower structure being rare for the Annonaceae. The twigs are thin, striate, dark and slightly pubescent at the tips. The shape of leaves is elliptic to oblong with size ranging from 7.5–15 × 2.5–6 cm. The leaves are chartaceous to subcoriaceous in texture and when dried, the top surface will turn grey-green to brown, while the bottom is pale grey-green or green. This species usually produces one or two flowers per inflorescence, but sometimes can have up to three flowers. The flowers have four pubescent spatulate petals ranging in size from 3–8 × 0.6–2 mm at the narrowest point and 1.6–2.3 mm at the broadest point. This species contains 7–26 ellipsoidal monocarps that are 9–12 mm long and 7–9 mm diameter. It carries two seeds per monocarp, but rarely one seeds. This species is native to Borneo, where it is found in coastal heath forests located at Sarawak and Brunei (Turner et al., 2014). According to Ee et al. (1996), this species contains a kind of acetogenin called Disepalin which has potential to treat various type of cancer and other diseases. 

Specimen

Collection Center   Total
3

Biodiversity Experts

Profile
Ahmad Aldrie Amir (Dr.)
Universiti Kebangsaan Malaysia (UKM)
  • Vascular
  • Biodiversity
  • Climate Change
  • Conservation
  • Ecosystems
  • Environment
  • Evolution
  • Forest
  • History
  • Law and Policy
  • Management
  • Marine & Coastal
  • Protected Areas
  • Science
  • PM
  • SBH
  • SWK
  • SEA
  • W
Anisah Lee Abdullah (Assoc. Prof. Dr.)
Universiti Sains Malaysia (USM)
  • Coral Reefs
  • Vascular
  • Biodiversity
  • Climate Change
  • Conservation
  • Ecosystems
  • Environment
  • Geoinformatics
  • Management
  • Marine & Coastal
  • Protected Areas
  • Science
  • Technology
  • Water
  • PM
  • SBH
Asyraf Mansor (Assoc. Prof. Dr.)
Universiti Sains Malaysia (USM)
  • Palms
  • Vascular (Ecology)
  • Biodiversity
  • Conservation
  • Ecosystems
  • Environment
  • Evolution
  • Forest
  • PM
Chong Ju Lian (Dr.)
Universiti Malaysia Terengganu (UMT)
  • Mammals (Ecology)
  • Vascular (Ecology)
  • Invasive Alien Species
  • Protected Areas
  • Digital Sequence Information (DSI)
  • Marine & Coastal
  • Climate Change
  • PM
  • SBH
  • SWK
  • SEA
  • W
Kartini Binti Saibeh (Dr.)
Universiti Malaysia Sabah (UMS)
  • Vascular
  • Agriculture
  • Biodiversity
  • Conservation
  • SBH
Mohamad Azani Alias (Assoc. Prof. Dr.)
Universiti Putra Malaysia (UPM)
  • Vascular (Taxonomy)
  • Vascular
  • Vascular
  • Amphibians
  • Amphibians
  • Biodiversity
  • Conservation
  • Climate Change
  • Protected Areas
  • Forest
  • PM
  • SBH
  • SWK
  • SEA
Mohd Fahmi Abu Bakar (Ts. Dr.)
Universiti Sultan Zainal Abidin (UniSZA)
  • Vascular
  • Digital Sequence Information (DSI)
  • Evolution
  • Genetics
  • Molecular
  • Systematics
  • PM
Mohd Norfaizal Ghazalli (Dr.)
Malaysian Agricultural Research and Development Institute (MARDI)
  • Vascular
  • Pitcher plants
  • Agriculture
  • Biodiversity
  • Conservation
  • Ecosystems
  • Science
  • Systematics
  • Taxonomy
  • PM
  • SBH
  • SWK
  • SEA
Nazahatul Anis Amaludin (Dr.)
Universiti Malaysia Kelantan (UMK)
  • Vascular (Ecology)
  • Biodiversity
  • Conservation
  • PM
Nor Ezzawanis Abdullah Thani (Mrs.)
Forest Research Institute Malaysia (FRIM)
  • Vascular (Taxonomy)
  • Digital Sequence Information (DSI)
  • PM
Nur Kyariatul Syafinie Abdul Majid (Ms.)
Universiti Malaysia Kelantan (UMK)
  • Vascular (Ecology)
  • Biodiversity
  • Climate Change
  • Conservation
  • Forest
  • Protected Areas
  • PM
Nur Supardi Md Noor (Dr.)
Forest Research Institute Malaysia (FRIM)
  • Palms
  • Vascular
  • Biodiversity
  • Climate Change
  • Conservation
  • Ecosystems
  • Environment
  • Forest
  • Management
  • PM
  • SBH
  • SWK
  • SEA
  • W
Rusea Go (Prof. Dr.)
Universiti Putra Malaysia (UPM)
  • Orchids (Taxonomy)
  • Vascular (Taxonomy)
  • Vascular (Ecology)
  • Biodiversity
  • Conservation
  • Environment
  • Forest
  • Management
  • Protected Areas
  • Climate Change
  • Invasive Alien Species
  • PM
  • SBH
  • SWK
Tam Sheh May (Dr.)
Taylor's University
  • Orchids
  • Vascular
  • Biodiversity
  • Data Analysis
  • Evolution
  • Genetics
  • Molecular
  • PM
Tan Swee Lian (Dr.)
Academy of Sciences Malaysia (ASM)
  • Vascular (Ecology)
  • Agriculture
  • Biodiversity
  • PM
  • SBH
  • SWK
Yong Kien Thai (Dr.)
University of Malaya (UM)
  • Moss
  • Vascular (Taxonomy)
  • Ferns (Taxonomy)
  • Protected Areas
  • Biodiversity
  • Conservation
  • Evolution
  • Taxonomy
  • PM
  • SBH
  • SWK
  • SEA
PM - Peninsular Malaysia; SBH - Sabah; SWK - Sarawak; SEA - Southeast Asia; W - World;

References

Article
  1. Alali, F.Q., Liu, X.X. & McLaughlin, J.L. (1999). Annonaceous Acetogenins: Recent Progress. Journal of Natural Products, 504–540. http://doi.org/10.1021/np980406d
  2. Ee, G.C.L., Chuah, C.H., Sha, C.K. & Goh, S.H. (1996). Disepalin, a New Acetogenin from Disepalum Anomalum (Annonaceae). Natural Product Letters 9 (2), 141–151. http://doi:10.1080/10575639608044938
  3. Li, P., Pang, C.C. & Saunders, R.M.K. (2016). Contrasting pollination ecology of Disepalum species (Annonaceae): evolutionary loss of the floral chamber and partial breakdown of protogyny associated with a shift in pollination system. Botanical Journal of the Linnean Society 182 (3), 708–718. http://doi.org/10.1111/boj.12468
  4. Li, P., Thomas, D.C. & Saunders, R.M.K. (2017). Historical biogeography and ecological niche modelling of the Asimina-Disepalum clade (Annonaceae): role of ecological differentiation in Neotropical-Asian disjunctions and diversification in Asia. BMC Evolutionary Biology 17, 18. http://dx.doi.org/10.1186/s12862-017-1038-4
  5. Li, P., Thomas, D.C. & Saunders, R.M.K. (2015). Phylogenetic Reconstruction, Morphological Diversification and Generic Delimitation of Disepalum (Annonaceae). PLOS ONE 10 (12), 24
  6. Randi, A., Wijedasa, L.S. & Thomas, D.C. (2022). Disepalum rawagambut (Annonaceae), a new tree species from peat swamp forest of Sumatra, Indonesia. Phytotaxa 530 (1), 6. http://doi.org/10.11646/phytotaxa.530.1.14
  7. Saunders, R.M.K. (2020). The evolution of key functional floral traits in the early divergent angiosperm family Annonaceae. Journal of Systematics and Evolution 58 (4), 369-392. http://doi.org/10.1111/jse.12645
Chapter in book
  1. Turner, I.M., Weerasooriya, A.D., Saunders, R.M.K. & Ganesan, S.K. (2014). Annonaceae. In Soepadmo, E., Saw, L.G., Chung, R.C.K. & Kiew, R. (Eds.), Tree Flora of Sabah and Sarawak, Volume 8. Forest Research Institute Malaysia (FRIM). pp. 1-200.

Acknowledgements :- Ms. Aida Salihah Binti Abu Bakar, Ms. Nur Diana Aisyah Binti Khairul Anuar & Mrs. Siti Yasmin Binti Yaakub

Species Citation :- Disepalum anomalum. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/6968. [Retrieved 01 March 2024].

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