Brasiliopuntia
From M&J Cactus Wiki
| Brasiliopuntia | |
|---|---|
| File:Brasiliopuntia brasiliensis.jpg | |
| Kingdom | Plantae |
| Family | Cactaceae |
| Subfamily | Opuntioideae |
| Tribe | Opuntieae |
| SubTribe | |
| Genus | Brasiliopuntia |
| Species | |
| Notes | Taxonomy follows Joël Lodé (2015) with reference to Wallace & Dickie (2001), Griffith & Porter (2009), and Bárcenas et al. (2011). |
Etymology
The name means "Opuntia of Brazil", referring to its origin and main distribution area.
Description
Brasiliopuntia is a monotypic genus of tree-like opuntioid cacti with a distinct trunk.
- Habit: Arborescent; forming a well-defined trunk.
- Stems: Cylindrical segments producing flattened pads (cladodes).
- Cladodes: Thin; bearing few spines.
- Leaves: Small; cylindrical; quickly deciduous.
- Areoles: With glochids and spines.
- Spines: Few; acicular; grouped on trunk and segments.
- Flowers: Diurnal; self-sterile; terminal.
- Flower color: Yellow.
- Pollination: By bees.
- Fruits: Spherical; fleshy; variable in color (yellow, orange, red, purple); with numerous glochids.
- Seeds: Very large; yellow; discoid; with woolly funicular envelope.
- Seed dispersal: Likely by mammals (e.g. peccaries).
Habitat
Occurs in diverse South American environments:
- dry thorn forests
- humid (ombrophilous) forests
- semi-deciduous woodlands
- river valleys and rocky areas
Altitude range: from lowlands up to ~1300 m.
Distribution
South America:
- Brazil
- Paraguay
- Bolivia
- Northern Argentina
- Peru
Naturalized in:
- USA (Florida)
Taxonomy
A distinctive and isolated genus.
Key points:
- Clearly separated from Opuntia by molecular and morphological data
- Wallace & Dickie (2001) and Stuppy (2001): confirmed distinct lineage
- Bárcenas et al. (2011): placed as sister to all other Opuntioideae
- Griffith & Porter (2009): found no close affinity with other genera
- Some taxa (e.g. Opuntia schickendantzii) may belong to this clade
The genus is accepted as distinct in Lodé (2015).
Species
Monotypic genus:
Notes
- One of the few tree-forming genera within Opuntioideae.
- Represents a basal lineage within the subfamily.
- Shows significant morphological variability across its range.
- May include additional taxa pending further molecular study.
