{{Short description|Genus of plants}} {{Speciesbox | image = | image_caption = | genus = Henoonia | parent_authority = Griseb. | species = myrtifolia | authority = Griseb. |synonyms = {{species list |Castela brittonii |(Small) Engl. |Castelaria brittonii |Small |Bissea myrtifolia |(Griseb.) V.R.Fuentes |Henoonia angustifolia |Urb. |Henoonia brittonii (Small) Monach.}} }}
'''''Henoonia''''' is a monotypic genus of flowering plants belonging to the family Solanaceae.<ref>{{cite web |title=''Henoonia'' Griseb. {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:36753-1 |website=Plants of the World Online |access-date=26 May 2021 |language=en}}</ref> The only species is '''''Henoonia myrtifolia'''''.<ref name="POWO">{{cite web |title=''Henoonia myrtifolia'' Griseb. {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:278114-2 |website=Plants of the World Online |access-date=25 September 2021 |language=en}}</ref> It is native to Cuba.<ref name="POWO" /> It is a stiff bush, with a whitish bark, red-pubescent branches, alternate papery leaves of 3.0-3.8 cm long and 1.0-1.3 cm wide that grow from thickened nodes, with a very short leafstalk, shortly spade-shaped to oblong, the tip sharp or pointed, margin entire, veined, glabrous above, initially with soft rufous felty hair below but becoming glabrous with age except near the main vein. The rufous, velvety calyx of 2.5 mm long consists of 5 sepals, finally splitting under the fruit. Corolla merged, with 5 petal lobes, glabrous, with 5 anthers opposite the petal lobes. Ovary superior, unilocular, stigma simple and nearly seated. The velvety, globe- to egg-shaped berry of about 1.3 cm long is topped with a curved beak of about 0.6 cm. The endosperm is absorbed as the seed ripens, the seed skin leathery, the 2 cotyledons are leaf-like, and the embryonic root is short.<ref>{{cite book|author= A. Grisebach|year= 1866|title= Catalogus plantarum cubensium exhibens collectionem Wrightianam aliasque minores ex insula Cuba missas|publisher= Lipsae, Apud Gulielmum Engelmann|pages= 166–167|doi= 10.5962/bhl.title.177|url= https://doi.org/10.5962/bhl.title.177}}</ref>
The genus name of ''Henonia'' is thought to be in honour of Jacques-Louis Hénon (1802–1872), a French republican politician.<ref>{{cite book | last=Burkhardt | first=Lotte | title=Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition |trans-title=Index of Eponymic Plant Names – Extended Edition | publisher=Botanic Garden and Botanical Museum, Freie Universität Berlin | year=2018 | isbn=978-3-946292-26-5 | url=https://doi.org/10.3372/epolist2018 |format=pdf |language=German |location=Berlin | doi=10.3372/epolist2018 |access-date=1 January 2021}}</ref> The Latin specific epithet of ''myrtifolia'' 'myrtle-leaved' is derived from the Latin ''myrtus'' meaning 'myrtle', and ''folium'' meaning 'leaf'.<ref>{{cite web|url=http://anpsa.org.au/a-myr.html|title=''Acacia myrtifolia''|access-date=2 September 2018|publisher=Australian Native Plants Society|archive-date=2 September 2018|archive-url=https://web.archive.org/web/20180902151931/http://anpsa.org.au/a-myr.html|url-status=dead}}</ref> It was first described and published in Cat. Pl. Cub. on page 167 in 1866.<ref name="POWO" />
==References== {{Reflist}}
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Category:Solanaceae Category:Monotypic Solanaceae genera Category:Plants described in 1866 Category:Endemic flora of Cuba Category:Taxa named by August Grisebach