Iteaceae
| Iteaceae Temporal range:
| |
|---|---|
| |
| Itea virginica flowers | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Saxifragales |
| Family: | Iteaceae J.Agardh[1] |
| Genera | |
Iteaceae is a flowering plant family of trees and shrubs native to the eastern USA, southeastern Africa, and south and Southeastern Asia. Some older taxonomic systems place the genus Itea in the family Grossulariaceae. The APG III system of 2009 includes the former Pterostemonaceae in Iteaceae.[1] Consequently, it now has two genera with a total of 18 known species.[2]
Fossil record
[edit]The family is known from fossil flowers dating to the Turonian age of the Late Cretaceous that have been found in the Raritan Formation, New Jersey and from leaves dating to the Eocene found in the Klondike Mountain Formation, Washington.[3]
As stated by Martinetto (2001), "a few seeds and one fruit" of †Itea europea were found in "two samples of muddy sediment from the Fossil Forest of Dunarobba".[4]: 305 In northwestern Italy, it has been recorded in sites of Early or Middle Pliocene age, suggesting I. europea constituted part of the assemblage of mid-Pliocene swamp forests. Fossil pollen of Itea made up 12% of the total in "a short section of the Sarzana Basin (north-western part of central Italy) tentatively assigned to the Miocene–Pliocene transition".[4]: 305 The nearest living relative of †Itea europaea is the American species Itea virginica.[4]: 305
References
[edit]- ^ a b Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III" (PDF). Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. hdl:10654/18083. Retrieved 2013-07-06.
- ^ Christenhusz, M. J. M.; Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
- ^ Hermsen, EJ; Gandolfo, MA; Nixon, KC; Crepet, WL (2003). "Divisestylus gen. nov. (aff. Iteaceae), a fossil saxifrage from the Late Cretaceous of New Jersey, USA". American Journal of Botany. 90 (9): 1373–1388. doi:10.3732/ajb.90.9.1373. PMID 21659237.
- ^ a b c Martinetto, Edoardo (2001). "The role of central Italy as a centre of refuge for thermophilous plants in the late Cenozoic". Acta Palaeobotanica. 41 (2): 299–319. S2CID 130345280.
External links
[edit]
- Iteaceae in Stevens, P. F. (2001 onwards).
 | This Saxifragales-related article is a stub. You can help Wikipedia by adding missing information. |