Dillenia

Dillenia is a genus of evergreen or semi-evergreen trees and shrubs in the flowering plant family Dilleniaceae, native to tropical and subtropical regions of southern Asia, Australasia, and the Indian Ocean islands.^{[4]: 154–156 [5][6]}

Dillenia
Dillenia indica (type species)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Dilleniales
Family:	Dilleniaceae
Genus:	Dillenia L.[1][2]
Type species
Dillenia indica L.[1]
Species
See text
Synonyms[3]
Capellia Blume Clugnia Comm. ex DC. Colbertia Salisb. Dilema Griff. Lenidia Thouars Neowormia Hutch. & Summerh. Reifferscheidia C.Presl Syalita Adans. Wormia Rottb.

19th-century illustration of Dillenia reifferscheidia

The genus is named after the German botanist Johann Jacob Dillenius.^[7]

Structure

The leaves are simple and spirally arranged. They are generally large, in the case of Dillenia reticulata reaching 1.27 m (4 ft 2 in) in length and about 41 cm (16 in) wide.^[8] The flowers are solitary, or in terminal racemes, with five sepals and five petals, numerous stamens (up to 900 in the case of Dillenia ovalifolia,^[9] and a cluster of five to 20 carpels; they are superficially similar in appearance to Magnolia flowers.^[6]

Species

As of September 2024^[update], Plants of the World Online recognises the following 60 species:^[3]

• Dillenia alata (R.Br. ex DC.) Banks ex Martelli
• Dillenia albiflos (Ridl.) Hoogland
• Dillenia andamanica C.E.Parkinson
• Dillenia aurea Sm.
• Dillenia auriculata Martelli
• Dillenia beccariana Martelli
• Dillenia biflora (A.Gray) Guillaumin
• Dillenia blanchardii Pierre
• Dillenia bolsteri Merr.
• Dillenia borneensis Hoogland
• Dillenia bracteata Wight
• Dillenia castaneifolia (Miq.) Martelli ex T.Durand & B.D.Jacks.
• Dillenia celebica Hoogland
• Dillenia crenatifolia Hoogland ex Mabb.
• Dillenia cyclopensis Hoogland
• Dillenia diantha Hoogland
• Dillenia excelsa (Jack) Gilg
• Dillenia fagifolia Hoogland
• Dillenia ferruginea (Baill.) Gilg
• Dillenia fischeri Merr.
• Dillenia grandifolia Wall. ex Hook.f. & Thomson
• Dillenia hookeri Pierre
• Dillenia indica L.
• Dillenia ingens B.L.Burtt
• Dillenia insignis (A.C.Sm.) Hoogland
• Dillenia insularum Hoogland
• Dillenia luzoniensis Merr.
• Dillenia mansonii (Gage) Hoogland
• Dillenia marsupialis Hoogland
• Dillenia megalantha Merr.
• Dillenia monantha Merr.
• Dillenia montana Diels
• Dillenia nalagi Hoogland
• Dillenia obovata (Blume) Hoogland
• Dillenia ochreata (Miq.) Teijsm. & Binn. ex Martelli
• Dillenia ovalifolia Hoogland
• Dillenia ovata Wall. ex Hook.f. & Thomson
• Dillenia papuana Martelli
• Dillenia parkinsonii Hoogland
• Dillenia parviflora Griff.
• Dillenia pentagyna Roxb.
• Dillenia philippinensis Rolfe
• Dillenia pteropoda (Miq.) Hoogland
• Dillenia pulchella (Jack) Gilg
• Dillenia quercifolia (C.T.White & W.D.Francis ex Lane-Poole) Hoogland
• Dillenia reifferscheidia Fern.-Vill.
• Dillenia reticulata King
• Dillenia retusa Thunb.
• Dillenia salomonensis (C.T.White) Hoogland
• Dillenia scabrella (D.Don) Roxb. ex Wall.
• Dillenia schlechteri Diels
• Dillenia serrata Thunb.
• Dillenia sibuyanensis (Elmer) Merr.
• Dillenia suffruticosa (Griff. ex Hook.f. & Thomson) Martelli
• Dillenia sumatrana Miq.
• Dillenia talaudensis Hoogland
• Dillenia tetrapetala Joongku Lee, T.B.Tran & R.K.Choudhary
• Dillenia tirupatiensis J.Swamy & Rasingam
• Dillenia triquetra (Rottb.) Gilg
• Dillenia turbinata Finet & Gagnep.