Biology:Praecereus
| Praecereus | |
|---|---|
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| Right-hand plant is Praecereus saxicola (as Monvillea saxicola) | |
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: | Praecereus Buxb.[1] |
| Species | |
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See text. | |
| Synonyms[1] | |
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Praecereus is genus of cactus. It is sometimes included in the genus Cereus.
Description
Plants have a bushy to tree-like species that are sometimes stretched out, mostly freely branched and reach a height of up to 6 meters. The slender, columnar to hanging shoots have 7 or more ribs with protruding, round and gray areoles from which needle-like or umbilical thorns arise.
The robust, funnel- to bell-shaped flowers are white to yellowish green and open during the day. Its strong flower cup and flower tube are thick-walled, fleshy and often curved.
The fleshy, short, ovoid fruits that split open lengthwise are red with a persistent flower residue and contain white flesh. The black, bumpy seeds are oblong and ovoid and somewhat compressed at the sides.
Species
As of October 2023[update], two species were accepted:[1][2]
| Image | Scientific name | Distribution |
|---|---|---|
_N.P.Taylor.jpg) |
Praecereus euchlorus | Bolivia and Paraguay |
_N.P.Taylor.jpg) |
Praecereus saxicola | Bolivia, Argentina and Paraguay |
References
- ↑ 1.0 1.1 1.2 "Praecereus Buxb.." (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/290902-2.
- ↑ Korotkova, Nadja; Aquino, David; Arias, Salvador; Eggli, Urs; Franck, Alan; Gómez-Hinostrosa, Carlos; Guerrero, Pablo C.; Hernández, Héctor M. et al. (2021-08-31). "Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family". Willdenowia (Botanic Garden and Botanical Museum Berlin, Freie Universitaet Berlin) 51 (2). doi:10.3372/wi.51.51208. ISSN 0511-9618.
Wikidata ☰ Q148616 entry
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