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Disocactus is a genus of epiphytic cacti in the tribe Hylocereeae found in Central America, the Caribbean and northern South America.[1] It should not be confused with Discocactus, which is a different genus.
| Disocactus | |
|---|---|
 | |
| Disocactus biformis | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Tribe: | Hylocereeae |
| Genus: | Disocactus Lindl.[1] |
| Type species | |
| Disocactus biformis | |
| Species | |
Species of Disocactus grow in tropical regions either on trees as epiphytes or on rocks as lithophytes. They have two distinct growth habits. Species such as D. phyllanthoides have stems which are round at the base but then become flattened and leaflike.[1]
Many of the cultivated plants known as epiphyllum hybrids or just epiphyllums are derived from crosses between species of Disocactus (rather than Epiphyllum) and other genera in the Hylocereeae.[2]
Taxonomy
Synonymy
The boundaries of the genera in the tribe Hylocereeae have been subject to considerable change and uncertainty, which is reflected in the number of names which have been used for Disocactus:[1]
- Bonifazia Standl. & Steyerm.
- Chiapasia Britton & Rose
- Heliocereus (A.Berger) Britton & Rose
- Lobeira Alexander
- Nopalxochia Britton & Rose
- Pseudonopalxochia Backeb.
- Wittia K.Schum.
- Wittiocactus Rauschert
Pseudorhipsalis is sometimes included in Disocactus, but it is kept separate by the International Cactaceae Systematics Group.[1] Aporocactus is formerly included in Disocactus, but it should be a genus on its own according to molecular evidence.[3][4]
Species
As of March 2021[update], Plants of the World Online accepted the following species:[5]
| Scientific name | Distribution | Image |
|---|---|---|
| Disocactus ackermannii (Haw.) Ralf Bauer | Mexico (Veracruz and Oaxaca) |  |
| Disocactus anguliger (Lem.) M.Á.Cruz & S.Arias | Mexico |  |
| Disocactus aurantiacus (Kimnach) Barthlott | Honduras, Nicaragua, Mexico | |
| Disocactus biformis (Lindl.) Lindl. | Guatemala, Honduras | |
| Disocactus crenatus (Lindl.) M.Á.Cruz & S.Arias | Mexico, Guatemala, Belize, El Salvador, Honduras |  |
| Disocactus eichlamii (Weing.) Britton & Rose | Guatemala | |
| Disocactus kimnachii G.D.Rowley | Costa Rica | |
| Disocactus lepidocarpus (F.A.C.Weber) M.Á.Cruz & S.Arias | Costa Rica to Panama | |
| Disocactus lodei Véliz, L.Velásquez & R.Puente | Mexico (Chiapas) | |
| Disocactus macdougallii (Alexander) Barthlott | Mexico (Chiapas) | |
| Disocactus macranthus (Alexander) Kimnach & Hutchison | Mexico (Oaxaca) |  |
| Disocactus nelsonii (Britton & Rose) Linding. | Mexico (Chiapas) |  |
| Disocactus phyllanthoides (DC.) Barthlott | Mexico (Pueblo, Veracruz-Llave) |  |
| Disocactus quezaltecus (Standl. & Steyerm.) Kimnach | Guatemala | |
| Disocactus salvadorensis Cerén, J.Menjívar & S.Arias | El Salvador | |
| Disocactus speciosus (Cav.) Barthlott | Guatemala, Mexico |  |
Cultivation
References
- Anderson, Edward F. (2001), The Cactus Family, Portland, Oregon: Timber Press, ISBN 978-0-88192-498-5, pp. 221–226
- Anderson, Edward F. (2001), The Cactus Family, Portland, Oregon: Timber Press, ISBN 978-0-88192-498-5, p. 286
- Cruz, Miguel Ángel; Arias, Salvador; Terrazas, Teresa (2016-04-01). "Molecular phylogeny and taxonomy of the genus Disocactus (Cactaceae), based on the DNA sequences of six chloroplast markers". Willdenowia. 46 (1): 145–164. doi:10.3372/wi.46.46112. ISSN 0511-9618. S2CID 87086656.
- Korotkova, Nadja; Borsch, Thomas; Arias, Salvador (2017-11-03). "A phylogenetic framework for the Hylocereeae (Cactaceae) and implications for the circumscription of the genera". Phytotaxa. 327 (1): 1–46. doi:10.11646/phytotaxa.327.1.1. ISSN 1179-3163.
- "Disocactus Lindl". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2021-03-07.
External links
Media related to Disocactus at Wikimedia Commons
Data related to Disocactus at Wikispecies
На других языках
- [en] Disocactus
[es] Disocactus
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