Meiogyne
| Meiogyne | |
|---|---|
| Meiogyne pannosa | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Magnoliids |
| Order: | Magnoliales |
| Family: | Annonaceae |
| Tribe: | Miliuseae |
| Genus: | Meiogyne Miq. |
| Species | |
|
See text. | |
| Synonyms[1] | |
Meiogyne is a genus of flowering plants with 38 species belonging to the family Annonaceae. It is native from southwestern India and Southeast Asia to Australia and the southwestern Pacific. The type species is Meiogyne virgata.[2]
Meiogyne is distinguished by two morphological characters.[3] The innermost whorl of stamens possesses elongated connectives. Most species also produce warty or corrugated outgrowths on the inner surface of the inner petals.
Pollination
The inner petal outgrowths on the inner petals serve as food bodies for nitidulid, curculionid and staphylinid beetle pollinators in Meiogyne cylindrocarpa, Meiogyne stenopetala and Meiogyne trichocarpa.[4]
Several Meiogyne species possess highly unusual pollination systems. The species Meiogyne hainanensis exhibits a three-way mutualistic relationship.[5] Ascomycete fungi, such as Fusarium, Penicillium and Cladosporium grow on the inner petal outgrowth. The staphylinid and monotomid beetles pollinate the flower and lay eggs on the inner petal outgrowth. Once the eggs hatch, the larvae feed on the fungi.
The Australian species Meiogyne heteropetala imitates aboveground leaf litter and deceives erotylid beetles to achieve pollination.[6]
Species
As of May 2024 Plants of the World Online includes 38 species, as follows:[1]
- Meiogyne amicorum (A.C.Sm.) B.Xue & R.M.K.Saunders
- Meiogyne amygdalina (A.Gray) B.Xue & R.M.K.Saunders
- Meiogyne anomalocarpa D.M.Johnson & Chalermglin
- Meiogyne arunachalensis N.V.Page[7]
- Meiogyne baillonii (Guillaumin) Heusden
- Meiogyne beccarii I.M.Turner
- Meiogyne bidwillii (Benth.) D.C.Thomas, Chaowasku & R.M.K.Saunders
- Meiogyne caudata (C.E.C.Fisch.) I.M.Turner
- Meiogyne chiangraiensis Chalermglin & M.F.Liu
- Meiogyne cylindrocarpa (Burck) Heusden
- Meiogyne dumetosa (Vieill. ex Guillaumin) Heusden
- Meiogyne gardneri D.M.Johnson
- Meiogyne glabra Heusden
- Meiogyne habrotricha (A.C.Sm.) B.Xue & R.M.K.Saunders
- Meiogyne hainanensis (Merr.) Bân
- Meiogyne heteropetala (F.Muell.) D.C.Thomas, Chaowasku & R.M.K.Saunders
- Meiogyne hirsuta (Jessup) Jessup
- Meiogyne insularis (A.C.Sm.) D.C.Thomas, B.Xue & R.M.K.Saunders
- Meiogyne kanthanensis Ummul-Nazrah & J.P.C.Tan
- Meiogyne laddiana (A.C.Sm.) B.Xue & R.M.K.Saunders
- Meiogyne lecardii (Guillaumin) Heusden
- Meiogyne leptoneura (Diels) I.M.Turner & Utteridge
- Meiogyne maxiflora D.M.Johnson & Chalermglin
- Meiogyne microflora (H.Okada) B.Xue, M.F.Liu & R.M.K.Saunders
- Meiogyne mindorensis (Merr.) Heusden
- Meiogyne monosperma (Hook.f. & Thomson) Heusden
- Meiogyne oligocarpa B.Xue & Y.H.Tan
- Meiogyne pannosa (Dalzell) J.Sinclair
- Meiogyne papuana I.M.Turner & Utteridge
- Meiogyne punctulata (Baill.) I.M.Turner & Utteridge
- Meiogyne ramarowii (Dunn) Gandhi
- Meiogyne rubra Jaikhamseub, Damth. & Chaowasku
- Meiogyne stenopetala (F.Muell.) Heusden
- Meiogyne subsessilis (Ast) J.Sinclair
- Meiogyne trichocarpa (Jessup) D.C.Thomas & R.M.K.Saunders
- Meiogyne verrucosa Jessup
- Meiogyne vietnamica Jaikhamseub, T.A.Le & Chaowasku
- Meiogyne virgata (Blume) Miq.
References
- ^ a b "Meiogyne Miq". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 17 May 2024.
- ^ Sinclair, J. (1955). "A revision of Malayan Annonaceae". Gardens Bulletin Singapore. 14 (2): 276–279. Retrieved 22 January 2023.
- ^ van Heusden, E. C. H. (1994). "Revision of Meiogyne (Annonaceae)" (PDF). Blumea. 38: 487–511.
- ^ Liu, Ming-Fai; Chen, Junhao; Pang, Chun-Chiu; Scharaschkin, Tanya; Saunders, Richard M. K. (2025). "More than fruity scents: Pollination biology, scent, and spectral reflectance of Annonaceae species". Plant Species Biology. 40: 403–425 – via Wiley.
- ^ Liu, Ming-Fai; Chen, Junhao; Xue, Bine; Wang, Rui-Jiang; Saunders, Richard M K (2025). "Fungus-infected Meiogyne flowers offer a brood site for beetle pollinators in a tripartite nursery pollination system". Annals of Botany. 136 (3): 567–582.
- ^ Liu, Ming‐Fai; Chen, Junhao; Goodrich, Katherine R; Chiu, Sung Kay; Pang, Chun‐Chiu; Scharaschkin, Tanya; Saunders, Richard MK (2025). "Aerial litter mimicry: A novel form of floral deception mediated by a monoterpene synthase". Journal of Ecology. 113 (2): 302–321.
- ^ Page, Navendu (2023-05-19). "A new species of Meiogyne (Annonaceae) from the Eastern Himalayas of northeast India". Edinburgh Journal of Botany. 80: 1–8. doi:10.24823/ejb.2023.1954. ISSN 1474-0036.