Streblorrhiza speciosa

Streblorrhiza speciosa was a perennial shrub endemic to Phillip Island. A species of legume in the family Fabaceae, and the sole species of the genus Streblorrhiza, it is now presumed extinct.

Streblorrhiza speciosa
Streblorrhiza speciosa (Plate by John Lindley)
Conservation status
Extinct  (IUCN 2.3)
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Fabales
Family:	Fabaceae
Tribe:	Coluteae
Genus:	Streblorrhiza Endl.
Species:	S. speciosa
Binomial name
Streblorrhiza speciosa Endl.
Synonyms
Clianthus carneus

The plant was first described by Stephan Endlicher in 1833, using two specimens collected by Ferdinand Bauer as the type for a new monotypic genus. One of these is the only known fruiting specimen.[1]

The species became extinct in 1860 in its native habit, but the plant was known to have been cultivated. An appeal was made in 2007 to discover the plant in historic gardens.[2] The species was declared extinct worldwide in 1998.[3] A DNA study found it to be most closely related to Carmichaelia, Clianthus, Montigena and Swainsona.[4]

References

1. Ferdinand Bauer’s field drawings. Rend. Fis. Acc. Lincei s. 9, v. 11:201-244 (2000)
2. Curtis's Botanical Magazine 24 (3), 196–197. (2007)
3. "Streblorrhiza speciosa". IUCN Red List of Threatened Species. Retrieved 8 April 2017.old-form url
4. Heenan, Peter B.; Wood, Jamie R.; Cole, Theresa L. (1 November 2018). "A partial cp DNA trn L sequence from the extinct legume Streblorrhiza speciosa confirms its placement in the tribe Coluteae (Fabaceae)". Phytotaxa. 374 (1): 87–91. doi:10.11646/phytotaxa.374.1.8. ISSN 1179-3163.

• "Streblorrhiza speciosa". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
• World Conservation Monitoring Centre 1998. Streblorrhiza speciosa. 2006 IUCN Red List of Threatened Species. Downloaded on 19 July 2007.