''Rhigospira'' is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1878 by John Miers. The species, ''Rhigospira quadrangularis'' was first described as ''Ambelania quadrangularis'' by

Johannes Müller Argoviensis Johann Müller (9 May 1828 - 28 January 1896) was a Swiss botanist who was a specialist in lichens. He published under the name Johannes Müller Argoviensis to distinguish himself from other naturalists with similar names. Biography Müller w ...

in 1860 but was transferred to the genus, ''Rhigospira'', in 1878 by John Miers. The genus contains only one known species, ''Rhigospira quadrangularis'', native to northwestern South America (

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

, Venezuela, Peru, NW Brazil).Kew World Checklist of Selected Plant Families
/ref>Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela. ;formerly placed in the genus * ''Rhigospira paucifolia'' (Müll.Arg.) Miers = '' Macoubea guianensis'' Aubl. * ''Rhigospira reticulata'' (A.DC.) Miers = '' Macoubea guianensis'' Aubl. * ''Rhigospira sinuosa'' Miers = '' Macoubea guianensis'' Aubl. * ''Rhigospira sprucei'' (Müll.Arg.) Miers = '' Macoubea sprucei'' (Müll.Arg.) Markgr. * ''Rhigospira ternstroemiacea'' (Müll.Arg.) Miers = '' Neocouma ternstroemiacea'' (Müll.Arg.) Pierre * ''Rhigospira venulosa'' Miers = ''

Spongiosperma macrophyllum ''Spongiosperma macrophyllum'' is a species of plant in the family Apocynaceae first described in 1860. It is native to the Amazon Basin of South America, nations of Venezuela, Colombia, and Brazil .Hokche, O., Berry, P.E. & Huber, O. (eds.) (200 ...

'' (Müll.Arg.) Zarucchi

References

Flora of South America Monotypic Apocynaceae genera Rauvolfioideae Plants described in 1860 {{Apocynaceae-stub