Dillenia Explained

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.^{[1] [2] [3]}

The genus is named after the German botanist Johann Jacob Dillenius.^[4]

Structure

The leaves are simple and spirally arranged. They are generally large, in the case of D. reticulata reaching in length and about wide.^[5] The flowers are solitary, or in terminal racemes, with five sepals and five petals, numerous stamens (up to 900 in the case of D. ovalifolia,^[6] and a cluster of five to 20 carpels; they are superficially similar in appearance to Magnolia flowers.^[3]

Species

, Plants of the World Online recognises the following 60 species:

• Dillenia alata
• Dillenia albiflos
• Dillenia andamanica
• Dillenia aurea
• Dillenia auriculata
• Dillenia beccariana
• Dillenia biflora
• Dillenia blanchardii
• Dillenia bolsteri
• Dillenia borneensis
• Dillenia bracteata
• Dillenia castaneifolia
• Dillenia celebica
• Dillenia crenatifolia
• Dillenia cyclopensis
• Dillenia diantha
• Dillenia excelsa
• Dillenia fagifolia
• Dillenia ferruginea
• Dillenia fischeri
• Dillenia grandifolia
• Dillenia hookeri
• Dillenia indica
• Dillenia ingens
• Dillenia insignis
• Dillenia insularum
• Dillenia luzoniensis
• Dillenia mansonii
• Dillenia marsupialis
• Dillenia megalantha
• Dillenia monantha
• Dillenia montana
• Dillenia nalagi
• Dillenia obovata
• Dillenia ochreata
• Dillenia ovalifolia
• Dillenia ovata
• Dillenia papuana
• Dillenia parkinsonii
• Dillenia parviflora
• Dillenia pentagyna
• Dillenia philippinensis
• Dillenia pteropoda
• Dillenia pulchella
• Dillenia quercifolia
• Dillenia reifferscheidia
• Dillenia reticulata
• Dillenia retusa
• Dillenia salomonensis
• Dillenia scabrella
• Dillenia schlechteri
• Dillenia serrata
• Dillenia sibuyanensis
• Dillenia suffruticosa
• Dillenia sumatrana
• Dillenia talaudensis
• Dillenia tetrapetala
• Dillenia tirupatiensis
• Dillenia triquetra
• Dillenia turbinata

Notes and References

1. Hoogland . R. G. . Dilleniaceae . 1972 . Flora Malesiana . 4 . 1 . 141–174 . Naturalis Institutional Repository.
2. Web site: Species in GRIN for genus Dillenia . GRIN . Taxonomy for Plants . USDA, ARS, National Genetic Resources Program . National Germplasm Resources Laboratory, Beltsville, Maryland . February 27, 2010 . https://web.archive.org/web/20001201214600/http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?3709 . December 1, 2000 . dead .
3. Book: Huxley, A. . 1992 . New RHS Dictionary of Gardening . Macmillan . 0-333-47494-5.
4. Book: Burkhardt, Lotte . Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition . Index of Eponymic Plant Names – Extended Edition . Botanic Garden and Botanical Museum, Freie Universität Berlin . 2018 . 978-3-946292-26-5 . pdf . German . Berlin . 10.3372/epolist2018 . 1 January 2021.
5. Book: Fayaz, Ahmed . 2011 . Encyclopedia of Tropical Plants . Buffalo, N.Y. . Firefly Books . 339 .
6. Hoogland . R. D. . December 1951 . Dilleniaceae . Flora Malesiana . 4 (series 1 part3 . 204.