This tool is part of the Citrus Resource

Citrus ID

 

Amyris

 

Synonyms

 

None

Cultivar or Taxon

 

Amyris P. Browne (sensu Tanaka sec. Cottin 2002)

Description

 

Crown compact or dense, not weeping. First year twig surface glabrous; second or third year twig surface mottled; thorns absent or not persistent; prickles absent or not persistent. Petiole glabrous, length very long, wings absent. Leaflets three, margin crenate/crenulate, rachis wings absent, shade leaflet blades weakly conduplicate, sun leaflet blades weakly or strongly conduplicate. Leaflets somewhat to strongly malodorous when crushed. Fruit as long as broad or longer than broad, rind dark green (3), medium green (4), light green with some break to yellow (5), black, or red or pink, rind texture smooth (1-3), firmness membranous, navel absent.

Notes

 

Four native species of Amyris are known from the continental United States: two from Florida (A. balsamifera L. and A. elemifera L.) and two from Texas (A. madrensis S. Watson and A. texana (Buckley) P. Wilson). No additional species are presently known in cultivation in the US. Amyris madrensis exhibits leaves opposite to subopposite and 5-11-foliolate. In contrast, the remaining three species exhibit leaves alternate and trifoliolate. Keys to the two species pairs in each state of occurrence are provided below (adapted from Wunderlin and Hansen 2003 and Correll and Johnston 1970, respectively).

Key to Amyris in Florida

1. Ovary puberulent; inflorescence puberulent...A. balsamifera (Miami-Dade and Monroe cos. keys).

1'. Ovary glabrous; inflorescence glabrous...A. elemifera (central and s. peninsula along east coast)

Key to Amyris in Texas

1. Leaves opposite to subopposite, 5-11-foliolate, pubescent...A. madrensis (primarily se. TX)

1'. Leaves alternate, trifoliolate, glabrous...A. texana (primarily se. TX)

References

 

Correll, D.S. and M.C. Johnston. 1970. Manual of the vascular plants of Texas. Texas Research Foundation, Renner. 1881 pp.

Cottin, R. 2002. Citrus of the World: A citrus directory. Version 2.0. France: SRA INRA-CIRAD.

Wunderlin, R.P. and B.F. Hansen. 2003. Guide to the vascular plants of Florida. University Press of Florida, Gainesville. 787 pp.

Resources

 

Search for this cultivar in NPGS/GRIN1

Search for this cultivar in NCBI2 Entrez

1GRIN: Germplasm Resources Information Network; NPGS: National Plant Germplasm System

2NCBI: National Center for Biotechnology Information

 

Citrus ID Edition 2
October, 2011
idtools.org