Hoplestigma

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Boraginales

Familia: Boraginaceae
Genus: Hoplestigma
Species: H. klaineanum – H. pierreanum
Name

Hoplestigma Pierre
References

The Plant List (2010) Version 1. Boraginaceae. Published on the Internet. Accessed 9 Sept. 2013.
USDA, ARS, Germplasm Resources Information Network. Hoplestigma in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Hoplestigma is a genus of flowering plants in the family Hoplestigmataceae.[1] One study of pollen suggested that Hoplestigma might be related to the family Ehretiaceae.[2] In a comparison of chloroplast DNA sequences in 2014, Hoplestigma formed a strongly supported clade with Coldenia and genera that have always been placed in Cordiaceae.[3] The authors of that study recommended that Hoplestigma and Coldenia be included in Cordiaceae.

However, it was traditionally included in Boraginaceae sensu lato, as did the APG IV classification[4] but subsequently placed in its own family within the Boraginales order, by the Boraginales Working Group.[5]

Hoplestigma has two species. Both are rare trees of lowland jungle in West and Central Africa.[6]

The genus name Hoplestigma is derived from the Greek hople, "a hoof or a cloven hoof" and stigma, "a flower stigma". The botanical name is a reference to the deeply bifid style.[7]
References

Vernon H. Heywood, Richard K. Brummitt, Ole Seberg, and Alastair Culham. 2007. Flowering Plant Families of the World. Firefly Books: Ontario, Canada. ISBN 978-1-55407-206-4.
Joan W. Nowicke and James S. Miller. 1989. "Pollen morphology and the relationships of Hoplestigmataceae". Taxon 38(1):12-16.
Maximilian Weigend, Federico Luebert, Marc Gottschling, Thomas L.P. Couvreur, Hartmut H. Hilger and James S. Miller. 2014. "From capsules to nutlets — phylogenetic relationships in the Boraginales". Cladistics 30(5):508-518. doi:10.1111/cla.12061.
Peter F. Stevens (2001 onwards). Angiosperm Phylogeny Website. At: Missouri Botanical Garden Website. (see External links below)
BWG 2016.
David J. Mabberley. 2008. Mabberley's Plant-Book. Cambridge University Press: UK.

Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume II. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. ISBN 978-0-8493-2676-9 (vol. II). (see External links below).

Bibliography

Luebert, Federico; Cecchi, Lorenzo; Frohlich, Michael W.; Gottschling, Marc; Guilliams, C. Matt; Hasenstab-Lehman, Kristen E.; Hilger, Hartmut H.; Miller, James S.; Mittelbach, Moritz; Nazaire, Mare; Nepi, Massimo; Nocentini, Daniele; Ober, Dietrich; Olmstead, Richard G.; Selvi, Federico; Simpson, Michael G.; Sutorý, Karel; Valdés, Benito; Walden, Genevieve K.; Weigend, Maximilian (24 June 2016). "Boraginales Working Group: Familial classification of the Boraginales". Taxon. 65 (3): 502–522. doi:10.12705/653.5.