Syncarpia

Turpentine trees
S. glomulifera leaves
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Myrtales
Family:	Myrtaceae
Subfamily:	Myrtoideae
Tribe:	Syncarpieae
Genus:	Syncarpia Ten.
Synonyms[1][2]
Metrosideros sect. Syncarpia (Ten.) Baill. Nani sect. Syncarpia (Ten.) Kuntze Kamptzia Nees

Syncarpia is a small group of trees in the myrtle family (Myrtaceae) described as a genus in 1839.^[3][4][2] They are native to Queensland and New South Wales in Australia.^[1][5]

They are unusual among the Myrtaceae in that the leaves are opposite rather than alternate as is the norm for the family.

The species are commonly known as turpentine trees due to the odour of their resin.

Species^[1]

1. Syncarpia glomulifera (Sm.) Nied. in H.G.A.Engler & K.A.E.Prantl - Queensland, New South Wales; naturalized in Hawaii and in parts of Africa
2. Syncarpia hillii F.M.Bailey - Queensland, New South Wales
3. Syncarpia verecunda A.R.Bean - Queensland

S. glomulifera is considered a weed in Hawaii.

Formerly included^[1]

now in Choricarpia Xanthostemon

1. Syncarpia leptopetala - Choricarpia leptopetala
2. Syncarpia subargentea - Choricarpia subargentea
3. Syncarpia vertholenii - Xanthostemon verus

References

1. Kew World Checklist of Selected Plant Families
2. Australian Plant Name Index
3. Tenore, Michele. 1839. Index Seminum in Horto Botanico Neapolitano: app. 12
4. Tropicos, Syncarpia Ten.
5. Govaerts, R., Sobral, N., Ashton, P., Barrie, F., Holst, B.K., Landrum, L.L., Matsumoto, K., Fernanda Mazine, F., Nic Lughadha, E., Proença, C. & al. (2008). World Checklist of Myrtaceae: 1-455. Kew Publishing, Royal Botanic Gardens, Kew.