Badmin: Created page with "{{Taxobox | name = Coleocephalocereus | image = Coleocephalocereus_fluminensis.jpg | kingdom = Plantae | family = Cactaceae | subfamily = Cactoideae | tribe = Cereeae | subtribe = Cereinae | genus = '''Coleocephalocereus''' | notes = Taxonomy follows Joël Lodé (2015). }} == Etymology == The name is derived from the Greek ''koleos'' (sheath/wrapped) and ''kephale'' (head), combined with ''cereus'' (wax candle). It refers to the genus's characteristi..."

2026-03-31T13:36:25Z

Created page with "{{Taxobox | name = Coleocephalocereus | image = Coleocephalocereus_fluminensis.jpg | kingdom = Plantae | family = Cactaceae | subfamily = Cactoideae | tribe = Cereeae | subtribe = Cereinae | genus = '''Coleocephalocereus''' | notes = Taxonomy follows Joël Lodé (2015). }} == Etymology == The name is derived from the Greek ''koleos'' (sheath/wrapped) and ''kephale'' (head), combined with ''cereus'' (wax candle). It refers to the genus's characteristi..."

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{{Taxobox
| name = Coleocephalocereus
| image = Coleocephalocereus_fluminensis.jpg
| kingdom = [[Plantae]]
| family = [[Cactaceae]]
| subfamily = [[Cactoideae]]
| tribe = [[Cereeae]]
| subtribe = [[Cereinae]]
| genus = '''Coleocephalocereus'''
| notes = Taxonomy follows Joël Lodé (2015).
}}

== Etymology ==
The name is derived from the Greek ''koleos'' (sheath/wrapped) and ''kephale'' (head), combined with ''cereus'' (wax candle). It refers to the genus's characteristic cephalium, which is often deeply embedded or "sunk" into the side of the stem.

== Description ==
'''Coleocephalocereus''' includes cacti with diverse growth habits, ranging from erect and columnar to semi-erect or creeping (decumbent) plants. The stems can be globular or elongated, with small, closely set areoles.

The defining feature of the genus is the **lateral or apical cephalium**. This specialized flowering zone consists of dense wool and robust bristles and is more or less embedded in the stem tissue.

The flowers are predominantly nocturnal and self-sterile, adapted for pollination by bats and moths, appearing in shades of white, pinkish-white, or greenish. However, species in the subgenus ''Buiningia'' produce diurnal, brightly colored flowers (yellow or purplish-red) pollinated by hummingbirds. The fruits are fleshy, naked berries that open via a basal pore when ripe. Seed dispersal is unique, involving ants (myrmecochory) and even lizards (saurochory).

== Habitat ==
The genus is endemic to Brazil, where it thrives on granitic outcrops (inselbergs), rocky terraces, and within the dry thorn forests known as the **Caatinga**. They often grow in humus-filled cracks on steep slopes at altitudes between 200 m and 800 m. The environment is characterized by stable year-round temperatures and relatively high humidity.

== Distribution ==
* '''Brazil''' (Bahia, Espírito Santo, Minas Gerais, Rio de Janeiro, São Paulo).

== Species ==
Joël Lodé recognizes 10 species (divided into three subgenera: ''Buiningia'', ''Coleocephalocereus'', and ''Simplex''):

* [[Coleocephalocereus aureus]]
* [[Coleocephalocereus braunii]]
* [[Coleocephalocereus buxbaumianus]]
** [[Coleocephalocereus buxbaumianus subsp. flavisetus]]
* [[Coleocephalocereus decumbens]]
* [[Coleocephalocereus diersianus]]
* [[Coleocephalocereus estevesii]]
* [[Coleocephalocereus fluminensis]]
* [[Coleocephalocereus goebelianus]]
* [[Coleocephalocereus pluricostatus]]
* [[Coleocephalocereus purpureus]]

== Notes ==
* '''Taxonomic Affinities:''' Molecular and morphological data suggest a close relationship between ''Coleocephalocereus'', ''Melocactus'', and ''Discocactus''. A natural hybrid between ''Coleocephalocereus'' and ''Discocactus'' was documented in 2008.
* '''Subgenus Buiningia:''' Once thought to be closer to ''Melocactus'' due to its diurnal flowers, genetic studies confirm it belongs within ''Coleocephalocereus''.
* '''Phylogeny:''' Chloroplast DNA sequences indicate that the genus forms a clade with ''Micranthocereus'' (specifically subgenus ''Siccobaccatus'').

[[Category:Cactaceae]]
[[Category:Cactoideae]]
[[Category:Cereeae]]
[[Category:Cereinae]]

Coleocephalocereus - Revision history