Espostoopsis: Difference between revisions
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'''''Espostoopsis''''' is a [[monotypic taxon|monotypic genus]] of [[cactus]] containing the single [[species]] '''''Espostoopsis dybowskii'''''. The generic name is formed from [[Greek language|Greek]] ''opsis'' meaning "view", referring to its resemblance to the genus ''[[Espostoa]]'', with which it is often confused. The plant is only known from northern [[Bahia]], [[Brazil]].<ref name="iucn status 18 November 2021" /> |
'''''Espostoopsis''''' is a [[monotypic taxon|monotypic genus]] of [[cactus]] containing the single [[species]] '''''Espostoopsis dybowskii'''''. The generic name is formed from [[Greek language|Greek]] ''opsis'' meaning "view", referring to its resemblance to the genus ''[[Espostoa]]'', with which it is often confused. The plant is only known from northern [[Bahia]], [[Brazil]].<ref name="iucn status 18 November 2021" /> |
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==Description== |
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Espostoopsis dybowskii grows shrubby and branches from the ground, reaches heights 2 to 4 meters. Their cylindrical trunks have 20 to 28 ribs, reaches up to a diameter of 8 centimeters and completely covered by white hairs. The areoles are covered with dull, yellowish wool and abundant white hairs. The 2 to 3 protruding, needle-like central spines are yellow and 2 to 3 centimeters long. The numerous, short and thin radial spines are hidden in the hairs of the areoles. The cephalium arises laterally and has a length of up to 60 centimeters. |
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The flowers are white and short tubular to bell-shaped, open at night and are up to 4 centimeters long. The flower tube covered with very small scales. The fruits are almost glabrose, pink fruits with persistent, blackening flower remains are broadly ovate in shape and have a diameter of up to 2.5 centimeters. Fruits contain white flesh and do not tear open. The black, rough-warty seeds are oval to pear-shaped. |
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==Synonymy== |
==Synonymy== |
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The genus '''''Gerocephalus''''' <small>[[F.Ritter]]</small> has been brought into synonymy with ''Espostoopsis''. |
The genus '''''Gerocephalus''''' <small>[[F.Ritter]]</small> has been brought into synonymy with ''Espostoopsis''. |
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Revision as of 11:40, 9 August 2023
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Tribe: | Cereeae |
| Subtribe: | Cereinae |
| Genus: | Espostoopsis Buxb. |
| Species: | E. dybowskii
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| Binomial name | |
| Espostoopsis dybowskii | |
| Synonyms | |
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Gerocephalus dybowskii (Rol.-Goss.) F.Ritter | |
Espostoopsis is a monotypic genus of cactus containing the single species Espostoopsis dybowskii. The generic name is formed from Greek opsis meaning "view", referring to its resemblance to the genus Espostoa, with which it is often confused. The plant is only known from northern Bahia, Brazil.[1]
Description
Espostoopsis dybowskii grows shrubby and branches from the ground, reaches heights 2 to 4 meters. Their cylindrical trunks have 20 to 28 ribs, reaches up to a diameter of 8 centimeters and completely covered by white hairs. The areoles are covered with dull, yellowish wool and abundant white hairs. The 2 to 3 protruding, needle-like central spines are yellow and 2 to 3 centimeters long. The numerous, short and thin radial spines are hidden in the hairs of the areoles. The cephalium arises laterally and has a length of up to 60 centimeters.
The flowers are white and short tubular to bell-shaped, open at night and are up to 4 centimeters long. The flower tube covered with very small scales. The fruits are almost glabrose, pink fruits with persistent, blackening flower remains are broadly ovate in shape and have a diameter of up to 2.5 centimeters. Fruits contain white flesh and do not tear open. The black, rough-warty seeds are oval to pear-shaped.
Synonymy
The genus Gerocephalus F.Ritter has been brought into synonymy with Espostoopsis.
References
- ^ a b Taylor, N.P. (2017). "Espostoopsis dybowskii". IUCN Red List of Threatened Species. 2017: e.T40933A121501760. doi:10.2305/IUCN.UK.2017-3.RLTS.T40933A121501760.en. Retrieved 18 November 2021.
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